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Planning to travel this week? Here’s what could impact your route.

• Ongoing flash flooding threatens morning travel across eastern Iowa and northern Illinois, where up to 6 inches of rain has fallen and roads, underpasses, and streams may be flooded.
• Flash flooding across southeastern Ohio, northeastern Kentucky, and much of West Virginia may cover highways, streets, and underpasses through late morning.
• Severe storms may disrupt travel across eastern Colorado and from southwestern Nebraska through Oklahoma, north-central Texas, Missouri, Illinois, and northwestern Arkansas this afternoon and evening, with damaging winds and large hail possible.

Your route’s weather may vary from the general forecast — check your exact trip

This free daily forecast is separate from a paid RV Weather SureRoute subscription. SureRoute checks the weather along your specific route and travel timing.

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Significant travel weather for the next 2-3 days.

Weather Impacts Pacific:

— No significant weather impacts to travels expected today or Monday.

Weather Impacts Mountain:

— Central, southern, and northeastern Montana and central, north-central, and northeastern Wyoming, including the Owl Creek, Bridger, and Bighorn mountains: Flood Watches continue through this afternoon or early evening. Moderate to heavy rain may flood creeks, streams, low-lying areas, steep terrain, and poor-drainage locations; recent Montana burn scars also face possible flash flooding and debris flows. Routes potentially affected: I-25, I-90, I-94, US-12, US-14, US-16, US-20, US-87, US-89, US-191, US-212.

— Eastern Colorado: The severe-weather outlook reaches severe-weather threat this afternoon and evening, with large hail and severe wind gusts possible as storms move from the higher terrain onto the plains. Routes potentially affected: I-25, I-70, I-76, I-80, US-6, US-24, US-30, US-34, US-36, US-40, US-50, US-56, US-85, US-160, US-287, US-385, US-400.

— Much of New Mexico: A flash-flood threat Tuesday into early Wednesday highlights multiple rounds of heavy rain and scattered to numerous instances of flash flooding. Routes potentially affected: I-10, I-25, I-40, US-54, US-60, US-62, US-70, US-82, US-84, US-180, US-285, US-380, US-550.

Weather Impacts Central:

— Eastern Iowa and north-central and northwestern Illinois, including the Iowa City, Quad Cities, and Dubuque areas: FLASH FLOOD WARNINGS continue this morning. Two to 4 inches fell near Kalona, where about a foot of water covered one intersection; a broader Flood Watch lasts until 1 PM, with localized totals of 4 to 5 inches possible. Routes potentially affected include: I-74, I-80, I-88, US-20.

— North-central and northeastern Illinois and northwestern Indiana, including De Kalb, La Salle, Lee, Boone, McHenry, Winnebago, Cook, DuPage, Kane, Kendall, and Will counties: A FLASH FLOOD WARNING and several Flood Advisories continue this morning while a broader Flood Watch lasts until early afternoon. Three to 6 inches fell in the warning area, highest in Lee County; elsewhere another 1 to 2 inches is expected, and torrential bands may exceed 2 inches per hour. Routes potentially affected include I-39, I-55, I-57, I-65, I-80, I-88, I-90, I-94.

— Southeastern Iowa, north-central and northeast Missouri, central and northern Illinois, and western South Dakota: Flash-flood threats continue today in these two corridors. Intense rainfall may produce flash flooding over saturated parts of Iowa, Missouri, and Illinois, while western South Dakota could see rainfall rates of 1 to 1.5 inches per hour or higher. Routes potentially affected: I-39, I-55, I-57, I-64, I-70, I-72, I-74, I-80, I-88, I-90, I-94.

— Far southwestern Nebraska, southern and western Kansas, Oklahoma, north-central and northeast Texas, central and southern Missouri, central and southern Illinois, northwestern Kentucky, and northwestern Arkansas: Severe thunderstorms are possible this afternoon and evening, with large hail and damaging wind the main threats. The severe-weather threat core is confined to eastern Oklahoma; isolated severe storms are possible elsewhere in the broader corridor. Routes potentially affected: I-20, I-35, I-40, I-55, I-64, I-70, I-74, I-76, I-80.

— Southeast Minnesota, including Mower County along the Cedar River at Austin: A Flood Warning continues into late tonight, with moderate flooding forecast after 2 to 5 inches fell in the Cedar River basin. The river was forecast to crest near 19.5 feet and fall below flood stage this afternoon. Routes potentially affected: I-90.

— Southern Wisconsin: Flood Watches cover southern Wisconsin through early this morning. Another 1 to 2 inches of rainfall are possible; in Rock County, Turtle Creek may reach flood stage late tonight and remain high into Monday afternoon. Routes potentially affected: I-39, I-41, I-43, I-90, I-94, US-18, US-41, US-45, US-51, US-61.

— Northeastern Iowa, including Fayette and Floyd counties: A Flood Warning continues this morning in Fayette County, where 3 to 6 inches previously fell and numerous roads remain closed. A Flood Watch begins late tonight on the Cedar River at Charles City in Floyd County, where flood stage may be reached early Monday. Routes potentially affected: US-18.

— A small portion of east-central Iowa and west-central and northwestern Illinois, including Rock Island, Henry, and Whiteside counties: Flood Watches cover the Mississippi and Rock rivers. The Mississippi at Rock Island may reach flood stage late Monday and remain high into Thursday; the Rock River near Joslin and at Moline may reach flood stage Monday, with possible moderate flooding lasting into Friday. Routes potentially affected: I-74, I-80, I-88.

— Southeastern Missouri, south-central and southeastern Illinois, southern and western Kentucky, south-central and southwestern Indiana, and Middle Tennessee: Heat Advisories remain in effect through early evening. Heat indices may reach 102 – 108 degrees.

— A small portion of northeastern Illinois, including Lake, northern and central Cook, and Will counties: Flood Watches cover the Des Plaines and Du Page rivers. Flood stage may be reached today or Monday at several Des Plaines River gauges; the Riverside gauge remains under watch through Tuesday morning, and the Du Page River near Shorewood through late tonight. Routes potentially affected: I-41, I-55, I-80, I-90, I-94.

— Far southwestern Kentucky, West and Middle Tennessee, south-central and southeast Arkansas, north-central and northwestern Louisiana, northern Mississippi, and northern Alabama: Monday brings a few damaging-gust storms across this corridor, with the severe-weather threat core in northeastern central and western Tennessee. Tuesday, an isolated severe-weather threat shifts to southeastern central and western Tennessee and northern Alabama, where isolated wind damage is possible. Routes potentially affected: I-20, I-22, I-24, I-40, I-55, I-59, I-65, I-69, I-85.

Weather Impacts East:

— South-central Ohio, northeastern Kentucky, and central, northern, and western West Virginia, including Calhoun, Gilmer, Braxton, Clay, Nicholas, Webster, Pocahontas, and Randolph counties: FLASH FLOOD WARNINGS remain in effect through mid-morning. Up to 1.5 inches of additional rain is possible. Routes potentially affected: I-64, I-77, I-79, US-19, US-23, US-33, US-60, US-119.

— Southern Michigan, north-central and northeastern Indiana, and a small portion of west-central and northwestern Ohio: A Flood Watch continues until early afternoon. Periods of rain and thunderstorms may produce 2-inch-per-hour rainfall rates, with flash flooding of streams, low-water crossings, urban areas, and poor-drainage locations possible. Routes potentially affected: I-69, I-80, I-90, I-94, US-24, US-27, US-30, US-31, US-127, US-131, US-421.

— Central and southern Indiana, southern Ohio, northeastern Kentucky, central and western West Virginia, and central Virginia: An isolated severe-weather threat continues today, with isolated severe wind gusts possible during the afternoon and evening. Routes potentially affected: I-64, I-65, I-69, I-70, I-71, I-74, I-75, I-77, I-79, I-81.

— Central and northern Indiana, most of Ohio, far northeastern Kentucky, and central and western West Virginia: A flash-flood threat continues today. Repeated heavy downpours over wet ground may produce flash flooding, especially along the Ohio Valley and in West Virginia. Routes potentially affected: I-64, I-65, I-70, I-71, I-74, I-75, I-79, I-80, I-90, I-94.

— Southwestern, south-central, and southeastern Ohio and a small portion of west-central West Virginia, including Clermont, Clinton, Hamilton, Warren, Athens, Jackson, Meigs, Vinton, and Washington counties: Flood Warnings continue through late morning or midday. Southwestern Ohio received 2.5 to 5 inches, while 1.5 to 2.5 inches fell across southeastern Ohio and nearby West Virginia; streams are rising, and up to another half-inch is possible. Routes potentially affected include I-71, I-77, US-50.

— Central, south-central, and southwestern Ohio, including Clermont, Hamilton, Pike, Pickaway, and Ross counties: Flood Advisories continue through mid-morning for ongoing or imminent minor flooding in low-lying and poor-drainage areas. One to 3 inches has fallen across the advisory areas, with up to another half-inch possible. Routes potentially affected incluede I-71, I-75, US-23, US-50.

— Southern and eastern Kentucky, eastern Tennessee, central and western West Virginia, central and western Virginia, central and western North Carolina, northwestern South Carolina, and northwestern Georgia: Scattered strong to severe storms may produce damaging gusts, including wet downbursts capable of tree and wire damage. Routes potentially affected: I-20, I-40, I-64, I-65, I-74, I-75, I-79, I-81, I-85, I-87, I-95.

— East Tennessee, south-central and southwest Virginia, central and western North Carolina, northern South Carolina, and northern Georgia: Isolated severe thunderstorms are possible across this corridor Tuesday, with isolated wind damage possible from the stronger storms. Routes potentially affected: I-20, I-24, I-26, I-40, I-59, I-73, I-74, I-75, I-77, I-81, I-85.

— Most of West Virginia, central and far northwestern Maryland, and central and western Virginia: A flash-flood threat Tuesday into early Wednesday highlights renewed heavy rain and flash-flood potential, with wet antecedent conditions increasing sensitivity in the Appalachians. Routes potentially affected: I-64, I-66, I-68, I-77, I-79, I-81, I-95.

— West-central Florida, including Citrus, Levy, and Marion counties along the Withlacoochee River at Dunnellon: A Flood Warning remains in effect until further notice. Minor flooding is occurring at flood stage, with docks and boat ramps flooded and additional rises possible because dense hydrilla is restricting river flow. Routes potentially affected: US-41.

Tropical Weather Outlook for the next 7 days:

— About 450 miles southwest of the Azores: Tropical Storm Fay has 45 mph sustained winds and is moving north-northeast at 5 mph. Some strengthening is expected through Monday before weakening, with no threat to the Continental US.

— About 1,245 miles southwest of the southern tip of Baja California: Tropical Storm Odalys has 40 mph sustained winds and is moving northwest at 8 mph. It is forecast to become a hurricane Monday while remaining far offshore, with no threat to the Continental US indicated.

Extended Hazard Outlook

Outlook Tuesday September 22nd through Saturday September 26th:

— Tuesday, September 22 through Saturday, September 26: Southwest and southern Rockies into the southern High Plains: Heavy rain may create localized flooding or difficult travel conditions. Major highways potentially affected include I-10, I-25, I-40.

— Tuesday, September 22 through Thursday, September 24: southeastern and eastern Texas into Louisiana and southwestern Mississippi: Hazardous heat may create challenging conditions, lasting through Thursday across much of southeastern Texas and through Wednesday across eastern Texas, most of Louisiana, and small portions of southwestern Mississippi. Major highways potentially affected include I-10, I-20, I-35, I-55.

— Tuesday, September 22 through Wednesday, September 23: Ohio and Tennessee valleys, Appalachians, Carolinas, and Mid-Atlantic: Heavy rain may create localized flooding or difficult travel conditions. Major highways potentially affected include I-40, I-64, I-70, I-71, I-74, I-75, I-76, I-79, I-81, I-85, I-87, I-95.

— Tuesday, September 22 through Saturday, September 26: much of Florida: Heavy rain may create localized flooding or difficult travel conditions. Major highways potentially affected include I-75, I-95.

— Wednesday, September 23 through Friday, September 25: northeastern North Carolina through the coastal Mid-Atlantic into southern New England: Strong winds may create locally difficult driving for high-profile vehicles. Major highways potentially affected include I-64, I-76, I-80, I-84, I-87, I-91, I-95.

— Thursday, September 24 through Friday, September 25: eastern Pennsylvania and southeastern New York into New Jersey and southern New England: Heavy rain may create localized flooding or difficult travel conditions. Major highways potentially affected include I-80, I-84, I-87, I-90, I-91, I-95.

Extended Outlook September 27th through October 3rd:

— Saturday, September 26: Southwest and southern Rockies into the southern High Plains and much of Texas: Heavy precipitation may develop, creating localized flooding or difficult travel conditions. Major highways potentially affected include I-8, I-10, I-15, I-20, I-25, I-40, I-70.

— Saturday, September 26 through Friday, October 2: most of Florida: Heavy precipitation may develop, creating localized flooding or difficult travel conditions. Major highways potentially affected include I-4, I-10, I-75, I-95.

Confidence in the Extended Outlook:

Confidence is average for the earlier period, with generally good agreement on the large-scale pattern but important uncertainty in smaller-scale details, especially the late-week coastal system in the East. Confidence decreases to below average later in the outlook as the pattern becomes more transient and less predictable.

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Your route’s weather may vary from the general forecast — check your exact trip

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Phone numbers and websites for road conditions in all 50 states. Courtesy of the Cheyenne WY Weather Forecast Office

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