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

• FLASH FLOOD WARNINGS in eastern Nebraska and western and central Iowa continue through early morning after as much as 4.5 inches of rain overnight, with another 1 to 2 inches possible.
• Severe thunderstorms threaten travel from Indiana and Ohio into western Pennsylvania and western New York today, with damaging winds and a tornado possible.
• Heat spans southern Kansas, much of Oklahoma and Arkansas, northern and eastern Texas, and the Mid-South today, with heat index values up to 112 degrees.

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:

— Southern Nevada and adjacent eastern California: Extreme Heat Warnings are in effect Thursday, with temperatures up to 112 degrees. In southeastern California, Extreme Heat Warnings continue through Friday with highs of 102 to 114 degrees. I-8, I-10, I-11, I-15, I-40, US-60, US-93, US-95, CA-62, CA-78, CA-86, CA-168 impacted.

— West-central and central California: Heat Advisories remain in effect today and Thursday, including the North Bay interior, Sacramento and San Joaquin valleys and portions of the Central Coast. Highs of 97 to 104 degrees.

— Much of Southern California: Extreme Heat Warnings and Heat Advisories cover coastal and inland areas, the Cuyama and Santa Clarita valleys, Inland Empire, San Diego County inland valleys and nearby mountains today and Thursday. Highs may reach 110 degrees; in Orange County Inland and the Inland Empire, warnings today transition to advisories tonight and Thursday, with warm nights providing limited relief. I-5, I-8, I-10, I-15, US-101, CA-1, CA-2, CA-14, CA-18, CA-46, CA-58, CA-78 impacted.

— Portions of central and southern California: Coastal Flood Advisories may bring minor flooding to low-lying shoreline roads and tidal access points. The advisory continues today and Thursday along the central coast and today along the southern California coast, where measured high tides are running 6 to 7 inches above predicted levels.

Weather Impacts Mountain:

— West-central Wyoming: A Freeze Warning is in effect through 9 AM MDT this morning along the Upper Green River Basin. Temperatures of 26 to 32 degrees are expected, with isolated cold-prone areas falling to 22 to 25 degrees.

— Central and southern Wyoming: Red Flag Warnings continue today and Thursday, with wind gusts reaching 30 to 40 mph in some areas. Any fire could spread rapidly and affect roads, recreation areas and access across open country. I-25, I-80, US-20, US-26, US-30, US-89, US-189, US-191, US-287 impacted.

— Southeastern Colorado: Heavy rain may produce flash flooding today, creating localized road flooding and hazardous travel. I-25, US-50, US-85, US-87, US-160, US-287, US-385, US-400 potentially impacted.

— South-central and southeastern Colorado and northeastern New Mexico: Isolated strong to severe thunderstorms are possible Thursday afternoon, bringing brief hazardous driving and localized travel delays. I-25, I-40, US-54, US-56, US-64, US-84, US-85, US-87, US-160, US-412 potentially impacted.

— Western Arizona: Extreme Heat Warnings continue through Thursday, with portions of northwestern and southwestern Arizona remaining under warnings through Friday. Afternoon temperatures of 102 to 112 degrees. I-8, I-10, I-11, I-15, I-17, I-40 impacted.

— South-central and southeastern Arizona: Heavy rain may produce flash flooding today, quickly flooding washes and low-water crossings. I-10, I-19, US-60, US-70, US-89, US-191 potentially impacted.

Weather Impacts Central:

— A small portion of east-central Nebraska and a small portion of southwestern Iowa: A FLASH FLOOD WARNING remains in effect early this morning. Between 1 and 2 inches of rain has fallen, with another 1 to 2 inches possible; rapidly rising water may flood roads and strand vehicles along I-29, I-80, US-30 and US-34. I-29, I-80, US-6, US-30, US-34, US-77 likely impacted.

— Central Iowa: A FLASH FLOOD WARNING remains in effect through early morning after 2 to 4.5 inches of rain have fallen overnight. Another 1 to 2 inches is possible through sunrise. A broader Flood Warning continues for parts of Iowa today, with flooding possible along I-35, I-80, US-69 and US-71. I-35, I-80, US-69, US-71 impacted.

— A small portion of southeastern South Dakota, a small portion of northeastern Nebraska, a small portion of southwestern Minnesota, and northwestern Iowa: Dense Fog Advisories remain in effect this morning. Visibility may fall to one-quarter mile, making morning driving hazardous. I-29, I-90, US-18, US-20, US-71, US-77 impacted.

— Eastern South Dakota, central and eastern Nebraska, most of Minnesota, west-central Wisconsin, and northwestern and west-central Iowa: Severe thunderstorms are possible from late Friday afternoon into Friday night and may disrupt evening and nighttime travel. I-29, I-35, I-35E, I-35W, I-80, I-90, I-94 potentially impacted.

— Southwestern Kansas: Heavy rain may produce localized flash flooding and hazardous road conditions today. US-50, US-160, US-400 potentially impacted.

— East-central and southeastern Kansas and central Missouri: Heavy rain may produce localized flash flooding and hazardous road conditions today. I-35, I-44, I-49, I-55, I-64, I-70 potentially impacted.

— East-central and southern Kansas, northern Oklahoma including the Panhandle, central and southern Missouri, central and southern Illinois, and western Kentucky: Isolated strong to severe thunderstorms are possible today. Additional isolated strong to severe storms are possible Thursday afternoon from eastern Oklahoma through south-central and southeastern Missouri and Illinois, southwestern Kentucky, and northern and west-central Arkansas, causing brief hazardous driving and localized delays. I-29, I-35, I-40, I-55, I-64, I-65, I-70, I-74 potentially impacted.

— South-central and southeastern Kansas, central and southern Missouri, southern Illinois, western Tennessee, northeastern and east-central Arkansas, and northwestern and north-central Mississippi: Heat Advisories are in effect today, with heat-index values generally reaching 105 to 110 degrees.

— Most of Oklahoma, north-central, northeastern and east-central Texas, western and central Arkansas, and northwestern Louisiana: Heat Advisories are in effect today, with heat-index values generally reaching 105 to 109 degrees. An Extreme Heat Warning in eastern Oklahoma and west-central Arkansas carries heat-index values up to 112 degrees. I-40, I-44, I-49, US-64, US-69, US-71, US-75, US-412 impacted.

— South-central and southeastern Texas: Hot, humid conditions will produce heat-index values of 108 to 111 degrees for several hours today. I-2, I-69, I-69C, I-69E, US-77, US-83, US-281 impacted.

Weather Impacts East:

— Southern Indiana and western Kentucky: Heat Advisories are in effect today, with heat-index values reaching about 105 to 109 degrees.

— Central and southern Indiana, Ohio, north-central Kentucky, central and western New York, and north-central and western Pennsylvania: Isolated to widely scattered strong or severe thunderstorms are possible today. The greatest risk, including damaging winds and an isolated tornado threat, is across northeastern Ohio, western New York and western Pennsylvania. I-64, I-65, I-70, I-71, I-74, I-75, I-76, I-79, I-80, I-81, I-90 potentially impacted.

— South-central and southeastern Ohio, eastern Kentucky, and central and southern West Virginia: Heavy rain may produce flash flooding Thursday, quickly flooding low-lying roads and creating difficult travel in Appalachian terrain. I-64, I-75, I-77, I-79, US-19, US-23, US-27, US-33, US-50, US-52, US-60, US-68, US-119, US-219, US-460 potentially impacted.

— Coastal portions of southeastern North Carolina and central South Carolina: A Coastal Flood Advisory is in effect from 8 PM to 11 PM EDT today. Up to one-half foot of inundation above ground level may flood low-lying shoreline roads, tidal waterways and streets in downtown Wilmington.

Tropical Weather Outlook for the next 7 days:

— No tropical systems are currently expected to impact travel in the continental United States during the next seven days.

Extended Hazard Outlook

Outlook Friday September 11th through Tuesday September 15th:

— Friday, September 11 through Tuesday, September 15: southeastern New Mexico, southeastern Oklahoma, and Texas: Hazardous heat may create challenging conditions across most of Texas, portions of southeastern Oklahoma, and small portions of southeastern New Mexico through Sunday, September 13, with the threat continuing in portions of southeastern Texas through Tuesday, September 15. Major highways potentially affected include I-10, I-20, I-30, I-35.

— Saturday, September 12 through Monday, September 14: central Plains through the Upper Midwest and western Great Lakes: Heavy rain may create localized flooding and reduced visibility. The broader threat extends from southeastern South Dakota, Nebraska, eastern Kansas, Iowa, and Missouri into southern Minnesota, Wisconsin, northern Illinois, and western Michigan, with some areas affected for shorter periods within the three-day window. Major highways potentially affected include I-29, I-35, I-70, I-74, I-80, I-90, I-94.

— Saturday, September 12: North Carolina and South Carolina: Heavy rain may create localized flooding and reduced visibility across much of both states. Major highways potentially affected include I-20, I-40, I-74, I-85, I-87, I-95.

— Monday, September 14 through Tuesday, September 15: Arizona and New Mexico: Heavy rain may create localized flooding and reduced visibility across much of both states. Major highways potentially affected include I-10, I-25, I-40.

Extended Outlook September 16th through 22nd:

— Wednesday, September 16 through Friday, September 18: Southwest, central Rockies, and adjacent High Plains: Heavy precipitation may develop from much of the Southwest and central Rockies into Nebraska and nearby portions of the High Plains, creating localized flooding and difficult travel. Major highways potentially affected include I-8, I-10, I-25, I-40, I-70, I-76, I-80.

— Wednesday, September 16 through Sunday, September 20: northern Plains and Upper Midwest: Much below normal temperatures may create cold-weather travel concerns from eastern Montana across most of North Dakota, South Dakota, and Minnesota into northwestern Michigan, including issues for exposed plumbing and late-season travel. Major highways potentially affected include I-29, I-90, I-94.

— Wednesday, September 16 through Sunday, September 20: Far-northern New York and far-northern New England: Much below normal temperatures may create cold-weather travel concerns across northern New York, much of Vermont and Maine, and northwestern New Hampshire, including issues for exposed plumbing and late-season travel. Major highways potentially affected include I-87, I-91, I-95.

Confidence in the Extended Outlook:

Confidence is average for the earlier part of the outlook, with generally good large-scale agreement. Confidence decreases later as model differences increase and precipitation signals become 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

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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