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

• Extreme heat dominates Western travel through the weekend, with localized highs up to 120 degrees in the Mojave Desert and prolonged dangerous heat from Nevada and California into Utah and Arizona.
• Scattered severe thunderstorms may disrupt Mid-Atlantic travel this afternoon from northeastern West Virginia through the Washington–Baltimore corridor, eastern Pennsylvania, New Jersey, and southeastern New York.
• Red Flag Warnings across parts of the Pacific Northwest and Northern Rockies for a risk of rapidly spreading wildfires today and Saturday.

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:

— Northwest Washington along the I-5 corridor: A Heat Advisory today with temperatures up to 90 degrees.

— Central and eastern Washington and north-central and eastern Oregon: Red Flag Warnings today and Saturday, with wind gusts up to 40 mph supporting rapid fire spread. I-82, I-84, I-90, US-2, US-12, US-26, US-97, US-395 impacted.

— Southern and eastern Oregon into far northern California, plus southwest Idaho: Heat Advisories today and Saturday, with temperatures locally up to 110 degrees today and up to 105 degrees Saturday.

— Nevada, southeast California, and northwest Arizona, including Death Valley National Park: Extreme Heat Warnings and Heat Advisories today through Monday, with localized highs up to 120 degrees in the Mojave Desert and dangerous heat around Las Vegas and Reno. I-11, I-15, I-40, I-80, US-6, US-50, US-93, US-95, US-395 impacted.

— Northern and central interior California, including Redding, Sacramento, Stockton, San Jose, Lassen Volcanic National Park, and Pinnacles National Park: Heat Advisories today through Sunday, with temperatures locally up to 112 degrees; the interior San Francisco Bay Area becomes hottest Saturday and Sunday.

— Southern California, including the Antelope Valley, Inland Empire, Imperial Valley, El Centro, and Joshua Tree National Park: Extreme Heat Warnings and Heat Advisories today through Sunday, with temperatures up to 117 degrees in the Imperial Valley and up to 114 degrees in other desert areas. I-8, I-10, I-15, US-395, CA-14, CA-18, CA-58, CA-62 impacted.

— California’s San Francisco, San Pablo, and Monterey Bay shorelines: A Coastal Flood Advisory is in effect around evening and nighttime high tides today through early Thursday, with inundation up to nearly 2 feet above ground possible on low-lying roads and isolated road closures.

Weather Impacts Mountain:

— Parts of central, western, and southwest Montana and western Idaho: Red Flag Warnings today and Saturday, continuing through Saturday night in Idaho, with gusts up to 30 mph supporting rapid fire spread. I-15, I-90, US-12, US-87, US-89, US-93, US-95 impacted.

— Southern Idaho: A Heat Advisory today and Saturday with temperatures up to 100 degrees.

— Southwest and south-central Wyoming: Red Flag Warnings today, with wind gusts up to 35 mph supporting rapid and erratic fire spread. I-80, US-26, US-30, US-89, US-189, US-191 impacted.

— Much of Utah, including Zion and Capitol Reef National Parks, and adjacent west-central Colorado along the I-70 corridor: Extreme Heat Warnings and Heat Advisories affect Utah today through Monday and western Colorado today and Saturday, with temperatures nearing 112 degrees around St. George and reaching 108 degrees in southeast Utah and western Colorado. I-15, I-70, I-80, I-84, US-6, US-50, US-89, US-191 impacted.

— South-central Colorado, including Pueblo: A Red Flag Warning today with gusts up to 30 mph and rapid fire spread. I-25, US-50, US-85 impacted.

— Denver, Boulder, and adjacent Colorado areas below 6,000 feet: A Heat Advisory Saturday with temperatures up to 102 degrees.

— Central and northern Arizona, including Phoenix and Grand Canyon National Park: Extreme Heat Warnings continue through Sunday, with temperatures up to 116 degrees around Phoenix; the lower elevations of the Grand Canyon below 4,000 feet may reach 112 degrees through Saturday. I-8, I-10, I-17, US-60, US-89A, US-180 impacted.

— Parts of central and northwestern New Mexico, including Albuquerque: Heat Advisories today with temperatures up to 103 degrees.

— Northeastern New Mexico: Isolated severe thunderstorms capable of damaging winds are possible today. I-25, I-40, US-54, US-56, US-60, US-64, US-70, US-84, US-87, US-285, US-412 potentially impacted.

Weather Impacts Central:

— South-central South Dakota and north-central Nebraska: Isolated severe thunderstorms with hail are possible today. I-90, US-14, US-18, US-20, US-83, US-281 potentially impacted.

— Southern South Dakota, much of Nebraska, far northeastern Kansas, western, central and southern Iowa, and northern Missouri: Isolated severe thunderstorms with severe wind gusts are possible Saturday afternoon and evening. I-29, I-35, I-49, I-70, I-72, I-80, I-90 potentially impacted.

— South Dakota, northern and eastern Nebraska, southern Minnesota, southern Wisconsin, Iowa, far north-central and northeast Missouri, and much of Illinois: Isolated severe thunderstorms are possible Sunday afternoon and evening. I-29, I-35, I-39, I-41, I-43, I-55, I-57, I-70, I-72, I-74, I-80, I-88, I-90, I-94 potentially impacted.

— Central and eastern Nebraska, north-central Kansas, southeast Minnesota, much of Iowa, northern Missouri; also central and northeast Illinois, and adjacent northwest Indiana: Dense Fog Advisories this morning may reduce visibility below one-quarter mile and make driving difficult. I-29, I-35, I-39, I-55, I-57, I-65, I-70, I-72, I-74, I-80, I-90, I-94 impacted.

— Far eastern Nebraska, southern and eastern Minnesota, most of Wisconsin, Iowa, and northern Missouri: Isolated severe thunderstorms with damaging winds and hail are possible today. I-29, I-35, I-35E, I-35W, I-39, I-41, I-43, I-80, I-90, I-94 potentially impacted.

— East-central Kansas: A Flood Advisory and Flood Warning continue this morning after 2 to 3.5 inches of rain, with another 0.5 to 1.5 inches expected; minor urban and small-stream flooding may cover low roads. I-35, I-70, US-56, US-77 impacted.

— Northwestern Oklahoma and north-central and northwest Texas, including the Oklahoma and Texas Panhandles: Isolated severe thunderstorms capable of damaging winds are possible today. I-27, I-40, US-54, US-56, US-60, US-64, US-70, US-83, US-84, US-87, US-183, US-287, US-385, US-412 potentially impacted.

— Central, eastern, and southern Oklahoma and adjacent north-central Texas, central Arkansas along the I-40 corridor, and adjacent northwest Mississippi: Heat Advisories today bring heat-index values near 110 degrees.

— Southeast Minnesota, southern Wisconsin, northeast and east-central Iowa, and northern Illinois: Flash flooding is possible Sunday into Monday morning as multiple rounds of storms may impact the same areas, flooding roads and low crossings. I-39, I-41, I-43, I-55, I-57, I-80, I-88, I-90, I-94 potentially impacted.

Weather Impacts East:

— Much of Michigan’s Upper Peninsula: Isolated severe thunderstorms with damaging winds and hail are possible today. US-2, US-8, US-41, US-45, US-51, US-141 potentially impacted.

— Southwest Michigan, northern and central Indiana, and northwest Ohio, including Indianapolis: Dense Fog Advisories this morning, with visibility dropping to one-quarter mile or even a few hundred feet and changing rapidly. I-65, I-69, I-70, I-74, I-75, I-80, I-90, I-94 impacted.

— Parts of Indiana: Isolated severe thunderstorms are possible Sunday afternoon and evening. I-57, I-65, I-69, I-70, I-74, I-80, I-90, I-94 potentially impacted.

— Northern Indiana: Flash flooding is possible Sunday into Monday morning as multiple rounds of storms may impact the same areas, flooding roads and low crossings. I-65, I-69, I-80, I-90, I-94 potentially impacted.

— North-central and northeast Ohio, including Cleveland: A Flood Advisory continues this morning after 1 to 1.5 inches of rain, with another 0.5 to 1.5 inches expected; ponding and minor flooding may affect urban and poor-drainage roads. I-71, I-77, I-80, I-90 impacted.

— Northwestern West Virginia: A Flood Warning continues this morning in Jackson County after 2 to 3.5 inches of rain, with flooding ongoing or expected and I-77 affected between mile markers 133 and 140. I-77, US-33 impacted.

— Northeastern West Virginia, southwestern Connecticut, southeastern New York, New Jersey, eastern Pennsylvania, most of Maryland, the District of Columbia, Delaware, and northern and northwest Virginia: Scattered severe thunderstorms capable of damaging winds are possible this afternoon. I-64, I-66, I-68, I-70, I-76, I-78, I-80, I-81, I-83, I-84, I-86, I-87, I-91, I-95, I-97 potentially impacted.

— Eastern Maine, southeast New Hampshire, much of Massachusetts, Rhode Island, most of Connecticut, southeast New York, much of New Jersey, southeastern Pennsylvania, and northern Delaware: Heat Advisories affect the region today, continuing Saturday around New York City, New Jersey, southeast Pennsylvania, and northern Delaware, with heat-index values up to 104 degrees.

— Interior South Carolina and central South Carolina into southeast and east-central Georgia: Locally dense fog this morning, with rapidly changing visibility that may briefly fall to one-quarter mile or less. I-16, I-20, I-26, I-77, I-95, US-1, US-17, US-25, US-52, US-76 impacted.

Tropical Weather Outlook for the next 7 days:

No tropical cyclone activity is expected in the Atlantic or eastern Pacific during the next seven days.

Outlook Sunday August 9th through Thursday August 13th:

— Sunday, August 9 through Monday, August 10: California and the Southwest, extending into southeastern Idaho and western Colorado: Hazardous heat may create challenging conditions. Major highways potentially affected include I-5, I-8, I-10, I-15, I-40, I-70, I-80, I-84.

— Sunday, August 9 through Thursday, August 13: From New Mexico and Texas through the central and southern Plains, Mississippi Valley, and Tennessee Valley: Hazardous heat may create challenging conditions. The northern extension into southeastern Colorado and southeastern Nebraska is mainly Sunday and Monday. Major highways potentially affected include I-20, I-25, I-29, I-30, I-35, I-40, I-55, I-64, I-65, I-70.

— Sunday, August 9 through Monday, August 10: Southern Great Lakes and adjacent Ohio Valley into northwestern Pennsylvania and southwestern New York: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-55, I-65, I-71, I-75, I-76, I-79, I-80, I-90, I-94.

— Tuesday, August 11 through Thursday, August 13: Ohio Valley and central Appalachians into Tennessee and the southern Appalachians: Heavy rain may create localized flooding and reduced visibility Tuesday and Wednesday across eastern Indiana, Ohio, and the central Appalachians. The concern shifts toward Kentucky, Tennessee, and nearby portions of the southern Appalachians Thursday. Major highways potentially affected include I-40, I-64, I-65, I-70, I-71, I-74, I-75, I-76, I-79, I-80, I-81.

— Tuesday, August 11 through Thursday, August 13: Southeast from southeastern Mississippi and Alabama through Florida, Georgia, the Carolinas, and southeastern Virginia: Hazardous heat may create challenging conditions. Major highways potentially affected include I-4, I-10, I-20, I-40, I-64, I-65, I-74, I-75, I-85, I-87, I-95.

Extended Outlook August 14th through August 20th:

— Friday, August 14 through Monday, August 17: A broad corridor from southeastern California and the Southwest through the central and northern Plains, Upper Midwest, Great Lakes, Ohio Valley, and central Appalachians: Heavy precipitation may develop, creating localized flooding and difficult travel. Major highways potentially affected include I-8, I-10, I-15, I-25, I-29, 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-81, I-90, I-94.

— Friday, August 14 through Thursday, August 20: Southern High Plains and central and southern Plains through the Mississippi Valley, Southeast, and southern Mid-Atlantic: Extreme heat may develop, creating challenging conditions. Extreme heat is likely Friday through Sunday from southeastern Kansas and southwestern Missouri through the southern Plains and Lower Mississippi Valley into the central Gulf Coast, Florida, Georgia, and South Carolina. Major highways potentially affected include I-4, I-10, I-20, I-30, I-35, I-40, I-55, I-64, I-65, I-70, I-74, I-75, I-85, I-87, I-95.

Confidence in the Extended Outlook:

Confidence is generally good across the outlook because the large-scale pattern is in good agreement. Some uncertainty remains in the timing and details of individual systems, with confidence decreasing slightly later because of uncertainty in how quickly the western pattern evolves.

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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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