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

• Dangerous heat affects California, Nevada and Arizona through Monday, with localized desert temperatures reaching 120 degrees.
• Heavy downpours and severe storms may disrupt travel from eastern Oklahoma and north Texas through Iowa, Missouri and Illinois today, with damaging winds, hail, and flash flooding possible.
• Flash flooding and severe thunderstorm risk across portions of the Four Corners

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:

— Central Washington, including the Kittitas Valley: A Wind Advisory Saturday will bring gusts up to 50 mph and locally difficult driving. I-82, I-90, US-97 impacted.

— Much of Nevada, east-central California, and northwestern Arizona, including Death Valley National Park: Extreme Heat Warnings and Advisories continue today through Sunday, with high temperatures 110 to 120 degrees across the Mojave Desert. Highs 100 to 110 degrees across most of the southern Great Basin and Arizona Strip.. I-11, I-15, I-40, US-6, US-93, US-95, US-395, CA-58 impacted.

— Central and Southern California and southwestern Arizona, including Joshua Tree National Park: Extreme Heat Warnings and Advisories continue today through Monday. Desert temperatures may reach 120 degrees, inland valleys may reach 115, coastal terrain will reach 85 to 100, and the San Joaquin Valley may reach 108 starting Saturday. I-5, I-8, I-10, I-15, US-60, US-95, US-101, US-395, CA-1 impacted.

— Southern California coast from Ventura and Los Angeles counties through Orange and San Diego counties: Coastal Flood Advisories continue today into early Saturday, with minor flooding around evening high tides and breaking waves of 4 to 8 feet, affecting low-lying beach roads and parking areas.

Weather Impacts Mountain:

— North-central Montana: A High Wind Watch is in effect tonight into Sunday morning, with gusts up to 60 mph and isolated gusts up to 75 mph along the eastern slopes of the Rocky Mountain Front. Strong winds may make driving difficult. I-15, US-2, US-89 potentially impacted.

— Central and eastern Montana and much of Wyoming: Extreme Heat Watches and a Heat Advisory are in effect Saturday and Sunday, with temperatures up to 110 degrees in Montana. In Wyoming, expected high temperatures from 98 to 105 below 5500 feet, and 90 to 98 degrees above 5500 feet. I-15, I-90, I-94, US-2, US-12, US-14, US-16, US-87 impacted.

— Much of Utah and portions of western and north-central Colorado, including Zion, Capitol Reef, Arches and Canyonlands national parks and the Denver metro: Extreme Heat Warnings and Advisories affect the region today through Monday, with temperatures or heat index values up to 110 degrees. I-15, I-70, I-80, I-84, US-6, US-50, US-89, US-191 impacted.

— South-central Colorado: A Flash Flood Watch is in effect today for the Aspen Acres Burn Scar and surrounding terrain, where heavy rain may trigger flash flooding, debris flows and flooding of low-lying or urban roads. I-25, US-50, US-85 potentially impacted.

— Central and eastern Colorado and eastern New Mexico: Isolated severe thunderstorms with severe wind gusts and hail are possible this afternoon and evening. I-25, I-40, I-70, I-76, US-24, US-36, US-40, US-50, US-54, US-56, US-60, US-64, US-70, US-82, US-84, US-85, US-87, US-160, US-285, US-287, US-380, US-412 potentially impacted.

— Much of Arizona, including Phoenix, Tucson, Organ Pipe Cactus National Monument and Grand Canyon National Park below 4000 feet: Extreme Heat Warnings and a Heat Advisory continue today through Monday, with temperatures up to 119 degrees; Grand Canyon Phantom Ranch may reach 117 degrees. I-8, I-10, I-17, I-19, US-60, US-70, US-89A, US-93, US-180 impacted.

— Southeast Arizona and much of New Mexico: Isolated severe thunderstorms with damaging wind and hail are possible Saturday afternoon and evening. I-10, I-25, I-40, US-54, US-56, US-60, US-62, US-64, US-70, US-82, US-84, US-180, US-191, US-285, US-380, US-550 potentially impacted.

— Northeastern New Mexico: A Flood Advisory continues through early this morning after 1 to 1.5 inches of rain, with another 0.25 to 0.5 inch expected. Minor arroyo, small-stream and poor-drainage flooding may affect travel. US-64, US-87 impacted.

— Parts of central and southern New Mexico and far-west Texas, including the Albuquerque metro: Heat Advisories today will bring temperatures up to 109 degrees, making daytime travel and outdoor stops more difficult.

— Central and eastern New Mexico: Flash flooding is possible Saturday. I-25, I-40, US-54, US-56, US-60, US-64, US-70, US-82, US-84, US-285, US-380 potentially impacted.

Weather Impacts Central:

— Northeastern Kansas, including Johnson, southwestern Leavenworth and Wyandotte counties: A FLASH FLOOD WARNING continues until 8:15 AM CDT. Between 1.5 and 2 inches of rain have fallen, and another 0.5 to 1 inch is possible; flash flooding may cover highways, streets and underpasses. I-35, I-70, US-50, US-56 impacted.

— Central and eastern North Dakota: Isolated severe storms are possible late Sunday afternoon into Sunday night, with the chance for large hail and severe wind gusts. I-29, I-94, US-2, US-52, US-83, US-281 potentially impacted.

— Parts of central and northeastern South Dakota and west-central Minnesota: Flood Warnings continue today after 2 to 6 inches of rain, with another inch possible in northeastern South Dakota and west-central Minnesota; 3 to 4 inches have fallen in central South Dakota. Low-water crossings and other flood-prone roads may be inundated. I-29, I-90, US-81 impacted.

— East-central and northeastern Kansas: Flood Advisories continue this morning after 0.5 to 1.5 inches of rain, with another 0.5 to 1.5 inches expected. Urban, small-stream and poor-drainage flooding may affect roads. I-35, I-70, US-50, US-56, US-59 impacted.

— Southeast Kansas and southwestern Missouri; much of Oklahoma; northern and eastern Texas; much of Arkansas; central, northern, and southeast Louisiana, and much of Mississippi: Extreme Heat Warnings and Heat Advisories today with heat index values up to 115 degrees. I-35, I-40, I-44, I-49, US-60, US-64, US-69, US-70, US-71 impacted.

— Eastern Oklahoma, northern Texas, southeastern Iowa, most of Missouri and Illinois, western Kentucky and Tennessee, and much of Arkansas: Scattered severe thunderstorms are possible this afternoon and evening, with damaging winds, hail and a tornado or two possible. The greatest risk of severe weather will be across eastern Missouri, and west-central and southern Illinois. I-24, I-27, I-30, I-35, I-39, I-40, I-44, I-49, I-55, I-57, I-64, I-69, I-70, I-72, I-74, I-80, I-88 potentially impacted.

— Parts of southwest and west-central Minnesota: Flood Watches continue today as slow-moving storms produce widespread rainfall of 2 to 4 inches, with localized totals greater than 6 inches. Flash flooding may affect urban roads, low areas and crossings. I-35, I-90, US-12, US-59, US-71, US-169 potentially impacted.

— South-central and southeastern Minnesota, southern Wisconsin, much of Iowa, central and eastern Missouri, and Illinois: Heavy downpours may produce flash flooding today, especially where roughly 1 inch of rain can overwhelm local drainage. I-24, I-35, I-39, I-41, I-43, I-44, I-55, I-57, I-64, I-70, I-72, I-74, I-80, I-88, I-90, I-94 potentially impacted.

— Central and northeastern Illinois, much of Kentucky, central and eastern Tennessee, and north-central and northeastern Alabama: Flash flooding is possible Saturday as deep moisture and a low pressure system support enhanced rainfall. I-20, I-22, I-24, I-40, I-55, I-57, I-59, I-64, I-65, I-70, I-72, I-74, I-80, I-85, I-90, I-94 potentially impacted.

— Much of Kentucky and Tennessee, northeastern Mississippi, and northern and central Alabama: Scattered severe thunderstorms are possible Saturday afternoon and evening, mainly with damaging wind and some tornado potential. The greatest risk of severe weather will be across the central Kentucky fringe, central and eastern Tennessee, and north-central Alabama. I-20, I-22, I-24, I-40, I-59, I-64, I-65, I-69 potentially impacted.

— Parts of the western Florida Panhandle: A Flood Advisory continues this morning, with minor flooding possible on low-lying, poor-drainage and urban roads. I-10, US-98 impacted.

Weather Impacts East:

— Western Indiana: Heavy downpours may produce flash flooding today. I-57, I-64, I-65, I-69, I-70, I-74, I-80, I-90, I-94 potentially impacted.

— Most of Indiana and Ohio, central and eastern Kentucky and Tennessee, far-western West Virginia, western North Carolina and adjacent northwest South Carolina, and northern Georgia: Flash flooding is possible Saturday as deep moisture and a low pressure system support enhanced rainfall. I-16, I-20, I-24, I-26, I-40, I-57, I-59, I-64, I-65, I-69, I-70, I-71, I-74, I-75, I-76, I-77, I-80, I-81, I-85, I-90, I-94 potentially impacted.

— Much of central and southern Indiana, southwestern Ohio, most of Kentucky, much of central and eastern Tennessee, and northwestern Georgia: Scattered severe thunderstorms are possible Saturday afternoon and evening, mainly with damaging wind and the chance for a tornado or two. The greatest risk of severe weather will be across central Kentucky and middle Tennessee. I-20, I-24, I-40, I-59, I-64, I-65, I-69, I-70, I-71, I-74, I-75 potentially impacted.

— Eastern Ohio, much of West Virginia, western New York, western Pennsylvania, western Maryland, much of Virginia along and west of I-95, much of North Carolina, most of South Carolina, and east-central Georgia: Isolated severe thunderstorms with mainly damaging winds are possible Sunday afternoon and evening. I-16, I-20, I-26, I-40, I-64, I-66, I-68, I-70, I-73, I-74, I-76, I-77, I-79, I-80, I-81, I-85, I-86, I-87, I-90, I-95, I-99 potentially impacted.

— Eastern Ohio, western and central New York, and western Pennsylvania: Flash flooding is possible Sunday afternoon and evening, with some storms capable of producing 2 inches of rain in a short period. I-68, I-70, I-76, I-77, I-79, I-80, I-81, I-86, I-90, I-99 potentially impacted.

— Southern Vermont, western Massachusetts and Connecticut, and eastern New York: Fog this morning may become locally dense in river valleys before ending mid-morning, with visibility changing quickly over short distances. I-84, I-87, I-88, I-90, I-91, US-5, US-6, US-7, US-20, US-44 impacted.

— Southeastern North Carolina, along the lower Cape Fear River and downtown Wilmington: A Coastal Flood Advisory is in effect from 10 PM tonight to 1 AM Saturday, with up to one-half foot of inundation covering vulnerable shoreline and tidal roads.

— Southeastern Florida, including the Miami, Fort Lauderdale and West Palm Beach metros: A Heat Advisory today with heat index values of 105 to 110 degrees.

Tropical Weather Outlook for the next 7 days:

— Tropical Storm Genevieve is not currently expected to disrupt road travel in the continental United States. However, life-threatening surf and rip currents are affecting Southern California and will persist for the next several days.

Outlook Sunday August 2nd through Thursday August 6th:

— Sunday, August 2 through Thursday, August 6: California, the Southwest, and the Intermountain West, extending into Texas and Louisiana: Hazardous heat may create challenging conditions. Major highways potentially affected include I-5, I-8, I-10, I-15, I-20, I-25, I-35, I-40, I-55, I-70, I-80, I-84.

— Sunday, August 2: From southeastern Montana and Wyoming through the Dakotas into northwestern Nebraska: Hazardous heat may create challenging conditions. Major highways potentially affected include I-25, I-90, I-94.

— Sunday, August 2 through Monday, August 3: Southwestern Alabama, much of Florida, and southern Georgia: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-10, I-65, I-75, I-95.

— Sunday, August 2: Northeastern Ohio, northwestern West Virginia, Pennsylvania, New York, and northwestern Maryland: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-70, I-71, I-76, I-79, I-80, I-81, I-84, I-90.

Extended Outlook August 7th through August 13th:

— Friday, August 7 through Thursday, August 13: Broad areas from the Pacific Northwest and California through the Rockies and central and southern Plains, with additional areas in the Midwest, Southeast, and Mid-Atlantic: Extreme heat may develop. Extreme heat is likely Friday, August 7 and Saturday, August 8 across much of the West, central and southern Plains, Lower Mississippi Valley, and Mid-South. Major highways potentially affected include I-4, I-5, I-8, I-10, I-15, I-20, I-25, I-29, I-30, I-35, I-40, I-55, I-64, I-65, I-70, I-71, I-74, I-75, I-76, I-79, I-80, I-84, I-85, I-87, I-90, I-94, I-95.

— Friday, August 7 through Thursday, August 13: Southeastern California and the Southwest: Heavy precipitation may develop, creating localized flooding and difficult travel. Major highways potentially affected include I-8, I-10, I-25, I-40.

Confidence in the Extended Outlook:

Confidence is average for the earlier period, with fairly good large-scale agreement but some uncertainty about how quickly the eastern trough clears and the timing of northern systems. Confidence remains average later in the period, although the evolution of the western U.S. pattern is less certain.

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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

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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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