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

• Extreme heat across Nevada, California, Arizona, Utah, and the northern Rockies continues through Monday, with localized temperatures near 120 degrees.
• Heavy rain may flood roads from New Mexico through the Midwest, Southeast, and Florida today, with additional flash-flood threats around the Great Lakes, Florida, and the Northeast Sunday and Monday.
• Severe thunderstorms threaten the Ohio and Tennessee valleys and parts of the Southeast today, with damaging winds and an isolated tornado possible before the risk shifts to the northern Plains Sunday night and Monday.

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 and western Washington, central and northwestern Oregon, and the Idaho Panhandle: Red Flag Warnings today, with wind gusts up to 50 mph supporting rapid fire spread. I-82, I-84, I-90, US-2, US-12, US-20, US-26, US-97 impacted.

— Central and south-central Washington and north-central and parts of east-central Oregon, including Deadman Pass on I-84 and the Kittitas Valley: Wind Advisories today, continuing into early Sunday in eastern Oregon, with gusts up to 45 mph. I-82, I-84, I-90, US-12, US-26, US-97, US-395 impacted.

— Much of Nevada, southeast California, and western Arizona, including Death Valley and Joshua Tree national parks: Extreme Heat Warnings and Advisories continue through Monday, with temperatures locally reaching 120 degrees in the Mojave Desert. I-8, I-10, I-11, I-15, I-40, US-6, US-60, US-93, US-95, US-395 impacted.

— Most of central and southern California: Extreme Heat Warnings and Advisories continue through Monday, with inland and desert temperatures up to 117 degrees, while some coastal areas reach the 80s to near 105. High heat will affect the San Joaquin Valley, Los Angeles area, Inland Empire, and San Diego County. I-5, I-8, I-10, I-15, US-101, US-395, CA-14, CA-58, CA-78 impacted.

Weather Impacts Mountain:

— Northwest Montana: High Wind Warnings begin this evening and continue through midday Sunday, with gusts up to 75 mph along the eastern slopes of the Rocky Mountain Front and locally difficult driving. I-15, US-2, US-89 impacted.

— Much of Montana and adjacent north-central Wyoming, and eastern Idaho: Red Flag Warnings today and Sunday, with gusts up to 60 mph supporting rapid and erratic fire spread. I-15, I-84, I-90, I-94, US-2, US-12, US-14, US-16, US-20 impacted.

— Southwest, central and eastern Montana, southeast Idaho, much of Wyoming, and the Nebraska Panhandle: Extreme Heat Warnings and Advisories today and Sunday, with temperatures up to 110 degrees. I-15, I-90, I-94, US-2, US-12, US-14, US-16, US-87 impacted.

— Much of Utah, and central Colorado along the I-25 corridor, including Zion, Capitol Reef, Arches, and Canyonlands National Parks: Extreme Heat Warnings and Advisories continue through Monday, with temperatures up to 110 degrees. I-15, I-70, I-80, I-84, US-6, US-50, US-89, US-191 impacted.

— Much of Arizona and northwestern and west-central New Mexico, including Phoenix, Tucson, and Grand Canyon National Park: Extreme Heat Warnings and Advisories continue through Monday, with temperatures up to 118 degrees; dangerous heat below 4,000 feet in Grand Canyon National Park continues through Tuesday, with 111 to 115 degrees at Phantom Ranch. I-8, I-10, I-17, I-19, US-60, US-70, US-89A, US-93, US-180 impacted.

— Southeastern Arizona and southwestern New Mexico: Isolated severe thunderstorms today may produce damaging wind gusts. I-10, US-70, US-180, US-191 potentially impacted.

— South-central New Mexico and far-west Texas: Flood Watches today, with repeated storms capable of rainfall rates exceeding 2 inches per hour near New Mexico burn scars; flash flooding may cover low-water crossings. I-10, US-54, US-62, US-70, US-82, US-180 potentially impacted.

— Central and eastern New Mexico and adjacent far-west Texas: Isolated severe thunderstorms today may produce damaging wind gusts and hail. I-25, I-40, US-54, US-56, US-60, US-62, US-64, US-70, US-82, US-84, US-87, US-180, US-285, US-380, US-412, US-550 potentially impacted.

— Central and eastern New Mexico: Flash flooding is possible today as locally heavy thunderstorms affect roads, low crossings, and poor-drainage areas. I-25, I-40, US-54, US-56, US-60, US-62, US-70, US-82, US-84, US-180, US-285, US-380 potentially impacted.

Weather Impacts Central:

— Central and eastern North Dakota: Isolated severe thunderstorms may develop late Sunday night, with damaging winds or hail possible. I-29, I-94, US-2, US-52, US-83, US-281 potentially impacted.

— Eastern North Dakota, central and eastern South Dakota, northern and central Nebraska, and much of Minnesota: Scattered severe thunderstorms are possible Monday afternoon and evening, with severe wind gusts and large hail. The greatest risk of severe weather will be across eastern North Dakota and northwestern Minnesota. I-29, I-76, I-80, I-90, I-94, US-2, US-10, US-12, US-14, US-18, US-20, US-26, US-30, US-52, US-53, US-59, US-71, US-81, US-83, US-169, US-212, US-281 potentially impacted.

— Western South Dakota: A Heat Advisory Sunday with heat-index values up to 105 degrees.

— Southern, south-central, and southeastern Texas: Heat Advisories today, with heat-index values up to 116 degrees. I-2, I-69, I-69C, I-69E, US-77, US-83, US-281 impacted.

— Northern and northeastern Illinois: Flood Advisories continue through late this morning after 1 to 2.5 inches of rain, with another 1 to locally 2 inches expected; poor-drainage roads, urban areas, and underpasses may flood. I-55, I-80, I-88, I-90 potentially impacted.

— Northeastern Illinois, middle and eastern Tennessee, much of Alabama, and the Florida Panhandle: Flash flooding is possible today as locally heavy thunderstorms affect roads and low-lying areas; up to 3 to 5 inches of rain may fall in parts of Illinois. I-10, I-20, I-22, I-24, I-39, I-40, I-55, I-57, I-59, I-65, I-70, I-72, I-74, I-80, I-85, I-88, I-90, I-94 potentially impacted.

— Central and eastern Kentucky and Tennessee, northern and central Alabama, and a central and adjacent east-central Mississippi: Scattered severe thunderstorms today may produce damaging winds and an isolated tornado. The greatest risk of severe weather will be across central Kentucky, middle Tennessee, and northeastern Alabama. I-20, I-22, I-24, I-40, I-59, I-64, I-65, I-85 potentially impacted.

— Much of the southeastern Florida Panhandle and Big Bend of Florida: A Flood Watch continues through Monday, with widespread rainfall of 3 to 6 inches and localized totals of 8 to 10 inches possible after 3 to 6 inches fell in recent days; saturated ground increases the risk of flash flooding and water over low roads. US-19, US-27, US-98, US-231 potentially impacted.

Weather Impacts East:

— Southern Michigan, most of Indiana, central and western Ohio, most of central and eastern Kentucky and Tennessee, western North Carolina and South Carolina, most of Georgia, and north-central and northwestern Florida: Flash flooding is possible today from locally heavy thunderstorms; parts of Indiana could receive 3 to 5 inches, causing urban, small-stream, and low-road flooding. I-10, 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-77, I-80, I-81, I-85, I-90, I-94 potentially impacted.

— Southeastern Michigan, northern Ohio, western and northwestern New York, and northwest Pennsylvania: Flash flooding is possible Sunday as locally heavy thunderstorms affect urban roads, small streams, and low-lying areas. I-71, I-75, I-76, I-77, I-79, I-80, I-81, I-86, I-90, I-94, I-96 potentially impacted.

— Much of central and southern Indiana, west-central and southwestern Ohio, central and eastern Kentucky and Tennessee, and northwestern Georgia: Scattered severe thunderstorms today may produce damaging wind gusts and an isolated tornado. I-20, I-24, I-40, I-59, I-64, I-65, I-69, I-70, I-71, I-74, I-75, I-81 potentially impacted.

— Much of Ohio, eastern Kentucky, northeastern Tennessee, West Virginia, far southwestern New York, much of Pennsylvania and Maryland, the District of Columbia, Virginia, much of North Carolina, most of South Carolina, and central and northern Georgia: Isolated severe thunderstorms Sunday afternoon and evening may produce damaging wind gusts. I-16, I-20, I-26, I-40, I-64, I-66, I-68, I-70, I-71, I-73, I-74, I-75, I-76, I-77, I-79, I-80, I-81, I-83, I-85, I-86, I-87, I-90, I-95, I-97, I-99 potentially impacted.

— Southern Vermont, western Massachusetts, northwest Connecticut, and east-central New York: Patchy dense fog this morning may reduce visibility below 1 mile. I-84, I-87, I-90, I-91, US-5, US-6, US-7, US-20, US-44 impacted.

— Southern New Hampshire, most of Massachusetts, much of Rhode Island, Connecticut, southeastern New York, eastern Pennsylvania, and much of New Jersey: Isolated severe thunderstorms Monday may produce damaging wind gusts. I-76, I-78, I-80, I-81, I-84, I-86, I-87, I-89, I-90, I-91, I-93, I-95 potentially impacted.

— Southwestern Massachusetts, most of Connecticut, southeastern New York, eastern Pennsylvania, and much of New Jersey: Flash flooding is possible Monday as locally heavy rain falls over areas with saturated soil, increasing runoff onto roads and low-lying areas. I-76, I-78, I-80, I-81, I-84, I-86, I-87, I-90, I-91, I-95 potentially impacted.

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

— West-central Florida: A Flood Watch continues through Monday as repeated showers and thunderstorms produce locally heavy rain and possible flooding of low roads, streams, and other flood-prone areas. I-75, US-19, US-27, US-41, US-98, US-301 potentially impacted.

— Northwestern Florida: Flash flooding is possible Sunday as training and backbuilding thunderstorms produce rainfall rates of 2 inches per hour or more and localized totals above 3 inches in 24 hours. I-10, I-75, US-19, US-27, US-41, US-98, US-301 potentially impacted

Tropical Weather Outlook for the next 7 days:

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

Outlook Monday August 3rd through Friday August 7th:

— Monday, August 3 through Friday, August 7: From California and the Intermountain West through the Southwest and southern Plains into Louisiana, with a late-week extension into the Mid-South and central Gulf Coast: Hazardous heat may create challenging conditions. The extension into the Mid-South and central Gulf Coast is mainly Thursday, August 6 through Friday, August 7. Major highways potentially affected include I-5, I-8, I-10, I-15, I-20, I-25, I-30, I-35, I-40, I-55, I-65, I-70, I-80, I-84.

— Monday, August 3: The central Rockies and adjacent High Plains: Hazardous heat may create challenging conditions. Major highways potentially affected include I-25, I-70, I-76, I-80.

— Tuesday, August 4: Eastern Nebraska, southeastern South Dakota, southwestern Minnesota, and northwestern Iowa: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-29, I-35, I-80, I-90.

Extended Outlook August 8th through August 14th:

— Saturday, August 8 through Friday, August 14: Large portions of the West, northern and central Plains, Midwest, Southeast, and Mid-Atlantic: Extreme heat may develop, creating challenging conditions. 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.

— Saturday, August 8 through Friday, August 14: The Southwest, centered on Arizona and New Mexico and extending into southeastern California: 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 generally good agreement on the large-scale pattern but uncertainty in the eastern U.S. details and some frontal timing. Confidence decreases slightly later in the outlook as uncertainty grows in the pattern evolution and temperature and precipitation guidance diverges.

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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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