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

• Heat affects a broad area from Nebraska and Kansas through the Mississippi Valley and Southeast, with heat index values up to 110 degrees today; heat persists through much of next week.
• Severe thunderstorms may disrupt travel from Indiana and the Ohio Valley through the Appalachians and Carolinas this afternoon and evening, with damaging wind gusts and isolated large hail possible.
• Heavy rain may produce flash flooding in central and southeastern Virginia and eastern North Carolina today, then central and southern South Carolina and eastern Georgia Sunday.

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:

— Southeastern Nevada: Widespread showers and thunderstorms may bring heavy rain and flash flooding Sunday. Tropical moisture and terrain will enhance the threat, although uncertainty remains about rainfall rates; watch for rapidly rising water near washes, low crossings and terrain-prone drainages. I-15, US-93, US-95 potentially impacted.

— Coastal portions of southern California: Coastal Flood Advisories remain in effect today through Tuesday. Breaking waves of 5 to 10 feet, strong rip currents and high astronomical tides may cause minor to moderate coastal flooding, isolated road closures and beach erosion, especially around high tide.

Weather Impacts Mountain:

— Much of Montana, eastern Wyoming, and northeastern Colorado: A more uncertain threat for severe thunderstorms with damaging winds and large hail is expected Sunday. Travelers should monitor forecast updates as storm timing and severity remain uncertain. I-15, I-25, I-70, I-76, I-80, I-90, I-94 potentially impacted.

— Southwestern and central Utah and northwestern Arizona: Widespread showers and thunderstorms may produce heavy rain and flash flooding Sunday. Tropical moisture and terrain will enhance the threat, though rainfall-rate uncertainty remains; avoid washes, slot canyons and low-water crossings when storms are nearby. I-15, I-70, US-6, US-50, US-89, US-89A, US-191 potentially impacted.

— Northeastern Colorado: Isolated severe thunderstorms may produce large hail and damaging wind gusts today into tonight, causing brief hazardous driving and localized damage. I-70, I-76, I-80, US-6, US-24, US-30, US-34, US-36, US-40, US-50, US-287, US-385, US-400 potentially impacted.

— A small portion of central New Mexico: A Flood Watch is in effect today in the South Central Mountains. Rainfall rates above 2 inches per hour could cause dangerous flash flooding around the Ruidoso-area burn scars, including along US-380 and US-70. US-70, US-380 potentially impacted.

Weather Impacts Central:

— North Dakota, South Dakota, Nebraska, Kansas, Minnesota, Iowa, and northwestern Missouri: Isolated severe wind gusts and large hail are possible today into tonight, with a more uncertain damaging-wind and large-hail threat Sunday. Strong to severe thunderstorms capable of organized storms remain possible Monday across most of North Dakota and South Dakota, central and northern Nebraska, western Minnesota and northwestern Iowa. I-29, I-35, I-70, I-76, I-80, I-90, I-94 potentially impacted.

— Southern and east-central Nebraska, central and eastern Kansas, central and southern Iowa, Missouri, and much of Illinois: Extreme Heat Warnings and Heat Advisories are in effect today, with heat indices of 100 to 110 degrees. Dangerous heat continues Sunday in some areas and through Tuesday in parts of Kansas and Missouri; thunderstorms may briefly interrupt the heat in a few locations. I-29, I-35, I-55, I-64, I-70, I-74, I-80 impacted.

— Central and eastern Oklahoma, northern Texas, Arkansas, northeast Louisiana, central and northern Mississippi, Tennessee, and central and northern Alabama: Heat Advisories cover these areas today, continuing Sunday in several locations. Heat indices will generally reach 105 to 110 degrees, with temperatures as high as 102 degrees in parts of the lower Mississippi Valley.

— Rio Grande Valley and Coastal Bend, Texas: Dangerous heat is expected this afternoon into this evening, with heat-index values of 108 to 111 degrees for several hours. I-2, I-69, I-69C, I-69E, US-77, US-83, US-281 impacted.

— East-central Illinois, much of Kentucky, Middle Tennessee, and northeast Alabama: Severe thunderstorms capable of damaging wind gusts are possible this afternoon and evening. Strong gusts and heavy downpours may cause sudden driving hazards and localized delays. I-24, I-40, I-57, I-59, I-64, I-65, I-69, I-70, I-74 potentially impacted.

— Central and southern Mississippi, central and southern Alabama, and the Florida Panhandle: Strong wind gusts are likely with thunderstorms Sunday afternoon and early evening, potentially making driving difficult and causing localized travel disruptions. I-10, I-20, I-55, I-59, I-65, I-85 potentially impacted.

Weather Impacts East:

— Central and southern Indiana and central and western Kentucky: An Extreme Heat Warning covers southwestern Indiana and western Kentucky today, where heat indices of 105 to 110 are expected. Heat Advisories elsewhere across the region bring heat indices generally around 100 to 107. I-24, I-55, I-57, I-64, I-69, US-60, US-67, US-68 impacted.

— Central and southern Indiana, southern Ohio, much of Kentucky, Middle and eastern Tennessee, most of West Virginia, Maryland Eastern Shore, Virginia, North Carolina, South Carolina, and northern Georgia: Severe thunderstorms capable of mainly damaging wind gusts are possible this afternoon and evening. Heavy downpours and damaging gusts may cause sudden hazardous driving and localized road or power disruptions. I-20, I-40, I-64, I-65, I-70, I-71, I-74, I-75, I-79, I-81, I-85, I-87, I-95 potentially impacted.

— A small portion of central Ohio: A Flood Advisory is in effect today after 1 to 2.5 inches of rain, with up to another 0.5 inch possible. Ponding and flooding may affect low spots and minor roads, including near I-71, US-23 and US-62. I-71, US-23, US-62 impacted.

— Central and southeastern Virginia, eastern North Carolina, far northeastern South Carolina, and eastern Georgia: Heavy thunderstorms may cause flash flooding today from Virginia into the eastern Carolinas, then Sunday across central and southern South Carolina and eastern Georgia. Water may rise quickly on low-lying roads and at poor-drainage locations. I-16, I-20, I-26, I-40, I-64, I-74, I-77, I-81, I-85, I-87, I-95 potentially impacted.

— Central and southern North Carolina, most of South Carolina, and central and northern Georgia: Heat Advisories are in effect today, with heat-index values of 107 to 110 in many affected areas.

— Southwestern North Carolina, South Carolina, Georgia, and adjacent northern Florida: Strong wind gusts are likely with thunderstorms Sunday afternoon and early evening. The greatest risk is across parts of South Carolina and eastern Georgia, where gusts may make driving difficult and cause localized travel disruptions. I-10, I-16, I-20, I-26, I-40, I-75, I-77, I-85, I-95 potentially impacted.

Tropical Weather Outlook for the next 7 days:

Southern California coast: Hurricane Marie, with maximum sustained winds near 90 mph, is moving northwest at 8 mph about 635 miles west of the southern tip of Baja California. Swells will affect portions of the Southern California coast over the next few days, likely causing life-threatening surf and rip currents.

Extended Hazard Outlook

Outlook Monday September 7th through Friday September 11th:

— Monday, September 7: From northeastern Montana through North Dakota and Minnesota into northwestern Wisconsin and far northwestern Michigan: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-29, I-35, I-94.

— Monday, September 7 through Friday, September 11: From the central and southern Plains through the mid- and lower Mississippi Valley into northwestern Alabama: Hazardous heat may create challenging conditions. Major highways potentially affected include I-10, I-20, I-29, I-30, I-35, I-40, I-55, I-64, I-70, I-80.

— Tuesday, September 8 through Wednesday, September 9: Small portions of northeastern Montana, much of North Dakota, and portions of northwestern Minnesota: High winds may create hazardous crosswinds for high-profile vehicles. Major highways potentially affected include I-29.

Extended Outlook September 12th through 18th:

— Saturday, September 12 through Monday, September 14: From southeastern California across the Southwest into the Intermountain West and Rockies: Heavy precipitation may develop, creating localized flooding and difficult travel. Major highways potentially affected include I-8, I-10, I-15, I-25, I-40, I-70, I-76, I-80, I-84.

— Saturday, September 12: From the central and southern Plains through the mid- and lower Mississippi and Tennessee valleys into Alabama, northwestern Florida, and northwestern Georgia: Extreme heat may develop, creating challenging conditions. Major highways potentially affected include I-10, I-20, I-29, I-30, I-35, I-40, I-55, I-64, I-65, I-70, I-85.

Confidence in the Extended Outlook:

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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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