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

• Saturday severe storms: Severe thunderstorms may bring damaging winds and large hail from the central Plains into the Midwest and Southeast, with the greatest risk across eastern Kansas.
• Upper Midwest and Great Lakes flooding: Repeated heavy rain may produce 2 to 4 inches, locally 5 inches or more, from southern Minnesota and Wisconsin through Iowa and Illinois, spreading into southern Michigan, northern Indiana and Ohio this weekend. Flash flooding may affect low roads and poor-drainage areas.
• Central and Mid-South heat: Hazardous heat continues from southeastern Kansas through Missouri, Illinois, Kentucky, Tennessee, Arkansas, Mississippi and Alabama, with heat index values generally 100 to 108 degrees and locally around 109.

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 Saturday.

Weather Impacts Mountain:

— Southeastern Idaho, including the Big Rock burn scar: A Flash Flood Watch continues today. Heavy rain could trigger flash flooding and debris flows near the burn scar. I-15, US-20 and US-26 potentially impacted.

— Central and southern Montana and northern Wyoming: Flood Watches and Flash Flood Watches continue from today into Sunday. Rainfall of 1 to 2.5 inches is expected, with localized totals near 4 inches where thunderstorms persist. Low roads, valleys, foothills, canyons and burn-scar areas may flood. I-15, I-25, I-90, I-94 and several major U.S. highways potentially impacted.

— Southwestern Montana, southeastern Idaho, far western Wyoming, and north-central and northeastern Utah: An isolated severe-weather threat today may produce damaging wind gusts and hail late this afternoon and early evening, creating rapidly changing driving conditions. I-15, I-80, I-84, I-86 and several major U.S. highways potentially impacted.

— Eastern Wyoming, central and northeastern Colorado, southwestern Wyoming, central and northeastern Utah, and northwestern Colorado: Isolated severe-weather threats develop Saturday, with damaging wind and hail possible. On Sunday, the threat shifts mainly to northeastern Colorado. I-25, I-70, I-76, I-80 and I-90 potentially impacted.

— North-central New Mexico, including Placitas: A Flash Flood Warning remains in effect early today. Around 1 to 1.5 inches of rain has fallen, with additional heavy rain possible; flooding of roads, low-water crossings and poor-drainage areas may develop quickly. I-25 and US-550 impacted.

— Western, central and south-central New Mexico: Flood Watches cover several areas today. Repeated thunderstorms may produce rainfall rates of 1 to 1.5 inches per hour over saturated terrain and wildfire burn scars, with rapid runoff into arroyos and low-water crossings. I-10, I-25, I-40 and several major U.S. highways potentially impacted.

Weather Impacts Central:

— Far southeastern Nebraska, much of Kansas, northern Oklahoma, the Texas Panhandle and South Plains, southern Iowa, northern Missouri, central and northern Illinois, western Kentucky, Tennessee, and parts of Alabama: Severe thunderstorms may bring damaging winds and large hail Saturday. The greatest risk is across eastern Kansas, with isolated severe storms extending well beyond that area. Major interstates from I-20 north to I-94 may be affected.

— Southeastern Kansas, Missouri, Illinois, western Kentucky, West and Middle Tennessee, Arkansas, northern Mississippi, and northern Alabama: Heat Advisories continue across a broad area today and in many locations through the weekend. Heat index values will generally reach 100 to 108 degrees, with readings near 109 possible in parts of Arkansas.

— Southern Minnesota, southern Wisconsin, northern and eastern Iowa, and northern Illinois: Flood Watches and a flash-flood threat continue today into the weekend. Repeated thunderstorms may produce 2 to 4 inches of rain, with localized totals of 5 inches or more, especially in south-central Wisconsin. Flooding of low roads, streams and poor-drainage areas is possible. I-29, I-35, I-39, I-41, I-43, I-55, I-74, I-80, I-88, I-90 and I-94 potentially impacted.

— South-central and southeastern Wisconsin: Patchy dense fog this morning may reduce visibility to one-quarter to one-half mile, with rapid visibility changes making travel difficult. I-39, I-41, I-90 and I-94 impacted.

— Much of Iowa: An isolated severe-weather threat develops late this afternoon and early evening. Damaging wind gusts are the primary concern, with a tornado also possible. I-29, I-35, I-80 and major U.S. highways potentially impacted.

— Central and northern Missouri, central and southern Illinois, central and eastern Oklahoma, and parts of Nebraska: Separate isolated severe-weather threats are possible Sunday, with damaging winds and hail producing localized travel hazards. I-35, I-40, I-44, I-55, I-57, I-64, I-70, I-72, I-74, I-76 and I-80 potentially impacted.

Weather Impacts East:

— Southern Michigan’s Lower Peninsula, northern Indiana, and northwestern and west-central Ohio: A flash-flood threat develops Saturday into Sunday as repeated thunderstorms may produce 2 to 4 inches of rain. Low roads and poor-drainage areas may flood. I-65, I-69, I-70, I-71, I-75, I-80, I-90, I-94 and I-96 potentially impacted.

— Central and eastern Indiana, southwestern and south-central Ohio, and northern Kentucky: Flood Warnings and Flood Watches remain in effect today. Several inches of rain have already fallen in parts of northeastern Indiana, while additional heavy rain may cause road, stream and low-lying flooding elsewhere. I-65, I-69, I-70, I-71, I-74 and I-75 potentially impacted.

— Most of Indiana, southwestern and south-central Ohio, northern and central Kentucky, East Tennessee, and western Georgia: An isolated severe-weather threat develops Saturday, mainly from damaging wind gusts. Additional isolated severe storms with wind and hail are possible Sunday across Indiana, Ohio and northern Kentucky. Major interstates from I-20 through I-94 may be affected.

— Coastal Connecticut, southeastern New York including the Hudson Valley, New York City and Long Island, northern New Jersey, and parts of Pennsylvania: A flash-flood threat develops Sunday into Monday. Heavy rain over increasingly wet ground may flood urban, coastal and low-lying roads. I-78, I-80, I-81, I-84, I-87, I-91 and I-95 potentially impacted.

— Northern New Jersey and eastern Pennsylvania: Locally dense fog early this morning may reduce visibility to around one-quarter mile or less, producing abrupt visibility changes. I-76, I-78 and I-80 impacted.

— Central and western North Carolina, northern South Carolina, and northern Georgia: An isolated severe-weather threat develops late this afternoon and early evening, with damaging wind gusts possible as storms move out of the southern Appalachians. I-20, I-26, I-40, I-73, I-74, I-75, I-77 and I-85 potentially impacted.

— West-central Florida near Dunnellon: A Flood Warning remains in effect along the Withlacoochee River. Minor flooding is occurring and may affect US-41 and nearby low-lying roads.

Tropical Weather Outlook for the next 7 days:

— Atlantic and eastern Pacific basins: No tropical systems are currently expected to affect travel in the continental United States during the next seven days.

Extended Hazard Outlook

Outlook Sunday September 20th through Thursday September 24rd:

— Sunday, September 20 through Monday, September 21: From the southern Plains and southeastern Kansas through the mid- and lower Mississippi Valley, lower Ohio Valley, and Tennessee Valley: Hazardous heat may create challenging conditions Sunday across the broader area, continuing through Monday across the southeastern southern Plains, Lower Mississippi and Tennessee valleys, and nearby portions of the mid-Mississippi and lower Ohio valleys. Major highways potentially affected include I-20, I-30, I-35, I-40, I-55, I-64, I-65.

— Sunday, September 20: Pennsylvania and New York through southern Vermont and New Hampshire, southern New England, and New Jersey, with small extensions into northeastern Maryland and northwestern Delaware: Heavy rain may create localized flooding or difficult travel conditions. Major highways potentially affected include I-76, I-80, I-81, I-84, I-87, I-90, I-91, I-95.

— Monday, September 21 through Thursday, September 24: Much of southeastern Texas: Hazardous heat may create challenging conditions. Major highways potentially affected include I-10, I-35.

— Tuesday, September 22 through Thursday, September 24: Most of New Mexico, with small portions of southeastern Arizona and northwestern Texas: 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: Much of Florida: Heavy rain may create localized flooding or difficult travel conditions. Major highways potentially affected include I-75, I-95.

Extended Outlook September 25th through October 1st:

— Friday, September 25 through Saturday, September 26: Across the Four Corners states and much of Texas, with smaller extensions into southwestern Kansas and northwestern Oklahoma: Heavy precipitation may develop and could create 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.

— Friday, September 25 through Thursday, October 1: From Louisiana across the central Gulf Coast through Florida, Georgia, and the Carolinas: Heavy precipitation may develop and could create localized flooding or difficult travel conditions. Major highways potentially affected include I-4, I-10, I-40, I-55, I-65, I-74, 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 some uncertainty in smaller-scale details. Confidence decreases to below average later in the outlook as model spread increases and uncertainty grows in the evolution of the broader pattern.

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

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Weather Maps and National Outlooks

For current NWS hazards, severe-storm and hurricane outlooks, heavy-rain risk, wind, smoke, heat/winter risk, and other always-updating weather graphics, visit:

Access to real-time road information:

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

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