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

• FLASH FLOOD WARNINGS and broader flooding threats affect southeastern Ohio, northern West Virginia, Indiana, and the central Appalachians today into Monday, with saturated ground and additional heavy rain increasing the risk of flooded roads.
• Heat continues across Oklahoma, Texas, the lower Mississippi Valley, Tennessee, Alabama, Georgia, and Florida today, with heat index values as high as 115 degrees; some areas remaining hot through at least Tuesday.
• Severe thunderstorms may disrupt travel from Indiana and Ohio through the Mid-Atlantic today, with damaging winds and tornadoes possible, while large hail and severe wind threaten parts of the central High Plains.

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 California and southwestern Arizona: An Extreme Heat Warning is in effect Monday through Friday, with afternoon temperatures of 107 to 114 degrees. I-8, I-10, US-60, US-95, CA-62, CA-78, CA-86 impacted.

Weather Impacts Mountain:

— Southeastern Wyoming, including the I-80 Summit between Cheyenne and Laramie: A Dense Fog Advisory continues this morning, with visibility as low as one-quarter mile. I-25, I-80, US-30, US-85, US-287 impacted.

— Southeastern Wyoming, eastern Colorado, and northeastern New Mexico: Scattered severe thunderstorms this afternoon into early evening may produce large hail and isolated severe wind gusts, with the greatest severe-weather risk across eastern Colorado. Heavy thunderstorms may also cause flash flooding across southeastern Colorado and northeastern New Mexico, including water over low roads and crossings. I-25, I-40, I-70, I-76, I-80, US-6, US-16, US-18, US-20, US-24, US-26, US-30, US-34, US-36, US-40, US-50, US-54, US-56, US-60, US-64, US-84, US-85, US-87, US-160, US-285, US-287, US-385, US-400, US-412 potentially impacted.

— Northeastern Colorado: A Flood Advisory continues today along Bijou Creek, with minor flooding of rural and low-lying areas. I-76, US-34 impacted.

— South-central Colorado: A Flash Flood Watch is in effect today for the Aspen Acres burn scar. Heavy thunderstorms may cause flash flooding, street flooding, and debris flows. I-25, US-50, US-85 potentially impacted.

— Eastern Colorado: Isolated severe thunderstorms Monday afternoon and evening may produce hail and damaging wind gusts. I-70, I-76, I-80, US-6, US-24, US-30, US-34, US-36, US-40, US-50, US-56, US-160, US-287, US-385, US-400 potentially impacted.

— Central and southern Arizona, including Phoenix, Tucson, Organ Pipe Cactus National Monument, and San Carlos: Extreme Heat Warnings are in effect Monday through Friday, except San Carlos begins Tuesday, with afternoon temperatures of 106 to 113 degrees. I-8, I-10, I-17, I-19, US-60, US-70, US-191 impacted.

— Northern New Mexico: A Flood Watch is in effect today for the Hermits Peak Calf Canyon burn scar. Slow-moving storms with rainfall rates above 1 inch per hour may cause flash flooding of streams, low roads, and crossings. US-64 potentially impacted.

Weather Impacts Central:

— Western and central South Dakota, western Nebraska, western Kansas, and the Oklahoma and Texas Panhandles: Scattered severe thunderstorms today may produce large hail and isolated severe wind gusts. The greatest severe-weather risk will be across western Nebraska. I-27, I-40, I-70, I-76, I-80, I-90 potentially impacted.

— Southern, central and eastern South Dakota, most of Nebraska, western and northern Kansas, central and southwestern Minnesota, and northwestern Iowa: Scattered severe thunderstorms Monday afternoon and evening may produce damaging winds, large hail, and a tornado. The greatest risk will be across southeastern South Dakota, central and northern Nebraska, southwestern Minnesota, and northwestern Iowa. I-29, I-35, I-35E, I-35W, I-70, I-76, I-80, I-90, I-94 potentially impacted.

— Southern South Dakota through Nebraska, northern Kansas, southern Minnesota and Wisconsin, Iowa, northern Missouri, and northwestern Illinois: Scattered severe thunderstorms Tuesday afternoon and evening may produce large hail and damaging wind gusts. An organized storm complex may also produce heavy rainfall and isolated to scattered flash flooding from eastern Nebraska and adjacent northeastern Kansas through most of Iowa, northern Missouri, and northwestern Illinois. I-29, I-35, I-39, I-43, I-49, I-70, I-72, I-74, I-76, I-80, I-88, I-90, I-94, US-6, US-18, US-20, US-30, US-34, US-36, US-59, US-61, US-63, US-65, US-69, US-71, US-77, US-136 potentially impacted.

— Southeastern Nebraska and northern Kansas: Flood Advisories continue today after 1 to 2.5 inches of rain, with another 0.5 to 1.5 inches possible. Minor flooding may affect low-lying, urban, and poor-drainage roads. US-36, US-77 impacted.

— Southeastern Kansas, southern Missouri, southern Illinois, western Kentucky, and southwestern Indiana: Extreme Heat Warnings and Heat Advisories are in effect today, with heat index values up to 110 degrees and localized higher values possible. I-24, I-44, I-49, I-55, I-57, I-64, I-69, I-70 impacted.

— Central and southeastern Oklahoma: Isolated severe thunderstorms Monday afternoon and evening may produce damaging wind gusts. I-35, I-40, I-44, US-64, US-69, US-75, US-183 potentially impacted.

— Central and eastern Oklahoma, eastern and deep-south Texas, southeastern Missouri, Tennessee, Arkansas, Louisiana, Mississippi, Alabama, and the Florida Panhandle: Extreme Heat Warnings, Watches and Advisories affect the region today through Tuesday, with heat index values up to 115 degrees. I-2, I-10, I-12, I-20, I-22, I-24, I-30, I-40, I-44, I-49, I-55, I-59, I-65, I-69, I-69C, I-69E impacted.

— Eastern and northeastern Iowa and northwestern Illinois: Dense Fog Advisories continue this morning, with visibility of one-quarter mile or less and difficult driving. I-74, I-80, I-88, US-20 impacted.

— Much of Missouri, central and southern Illinois, and much of Kentucky: Scattered severe thunderstorms this afternoon into early evening may produce damaging wind gusts. The greatest severe-weather risk will be across southeastern Illinois. I-24, I-44, I-49, I-55, I-57, I-64, I-65, I-69, I-70, I-72, I-74 potentially impacted.

— Central Illinois into northwestern Indiana: A combination of Flood Warnings and Watches continues today after 2 to 7 inches of rain, with another 1 to 3 inches possible over saturated ground. Ongoing flooding and renewed flash flooding may cover urban and low-lying roads. I-39, I-55, I-57, I-65, I-72, I-74 impacted.

— Middle and eastern Tennessee and northern Alabama: Scattered severe thunderstorms Monday afternoon and evening may produce damaging wind gusts. The greatest risk will be across southeastern portions of central and western Tennessee. I-20, I-24, I-40, I-59, I-65, US-27, US-43, US-64, US-70, US-72, US-78, US-127, US-231, US-278, US-412, US-431 potentially impacted.

Weather Impacts East:

— West-central, central, north-central and east-central Indiana into northwestern and western Ohio, including Indianapolis: A combination of Flood Warnings and Watches continue today, with some Indianapolis-area warnings continuing through Tuesday. Another 1 to 3 inches of rain is possible in parts of Indiana, while rainfall rates up to 1 inch per hour over saturated ground may worsen urban, small-stream and low-road flooding. Flooding is already occurring along some streams and low-lying roads, and residential areas near I-465 are threatened. I-65, I-69, I-70, I-71, I-74, I-75, I-465, US-31, US-36, US-421 impacted or potentially impacted.

— Northwestern Indiana: A Flood Warning continues today and Monday along the Kankakee River near I-65, with high water threatening low-lying residences. I-65 impacted.

— Northern Indiana: A Flash Flood Watch and Flood Watch continue today below the Norway Dam, where discharge exceeding 9,000 cubic feet per second may flood poor-drainage areas and low-water crossings. I-65, US-24, US-421 potentially impacted.

— Southern Indiana, eastern Kentucky, and eastern Tennessee: Heat Advisories and a heat-related Special Weather Statement affect the region today, continuing Monday in eastern Tennessee, with heat index values near 105 degrees and locally higher. I-64, I-75, US-23, US-25E, US-27, US-60, US-68 impacted.

— Most of Indiana and Ohio through eastern Kentucky, West Virginia, central and southern Pennsylvania, southern New Jersey, Maryland, the District of Columbia, Delaware, Virginia, and northern North Carolina: Scattered severe thunderstorms this afternoon into early evening may produce damaging winds and tornadoes, creating rapidly changing driving conditions. I-26, I-40, I-64, I-65, I-66, I-68, I-69, I-70, I-71, I-73, I-74, I-75, I-76, I-77, I-78, I-79, I-80, I-81, I-83, I-85, I-87, I-90, I-95, I-97, I-99 potentially impacted.

— Central and southeastern Ohio and parts of West Virginia: FLASH FLOOD WARNINGS continue this morning after 0.5 to 2 inches of rain, with another 0.5 to 1 inch possible in parts of the warned area. Flooding of creeks, highways, streets, underpasses, low-lying areas and other vulnerable roads is ongoing or may develop quickly. I-77, I-79, US-19, US-50, US-119 impacted.

— Central Ohio: A Flood Warning continues today after 2 to 3 inches of rain, with flooding imminent or occurring along streams and in low-lying areas. I-70 impacted.

— Eastern Ohio, central and northeastern Kentucky, West Virginia, much of Pennsylvania and Maryland, the District of Columbia, and parts of Virginia: Flood Watches and a broader heavy-rain and flash-flood risk continue today, with watches lasting into Monday across much of the region. Repeated thunderstorms over saturated ground may produce 1.5 to 2.5 inches of rain, isolated totals of 3 to 5 inches, and localized rates of 2 to 3 inches per hour. The greatest flash-flood risk today will be across central and western West Virginia. I-64, I-66, I-68, I-70, I-71, I-76, I-77, I-78, I-79, I-80, I-81, I-83, I-85, I-95, I-97, I-99 potentially impacted.

— Southeastern Kentucky, eastern Tennessee, far south-central and southwestern West Virginia, southern Virginia, much of North Carolina, northern South Carolina, and northwestern Georgia: Scattered severe thunderstorms Monday afternoon and evening may produce damaging wind gusts. I-20, I-24, I-26, I-40, I-59, I-64, I-73, I-74, I-75, I-77, I-81, I-85, I-87, I-95 potentially impacted.

— Western North Carolina and northern Georgia: Patchy dense fog this morning may reduce visibility to one-quarter mile or less in mountain valleys, with rapidly changing visibility. I-26, I-40, US-19, US-19E, US-25, US-64, US-70 impacted.

— Central and southeastern North Carolina, South Carolina, much of Georgia, and Florida: Heat Advisories are in effect today and Monday, with heat index values of 105 to 112 degrees.

Tropical Weather Outlook for the next 7 days:

— No significant Tropical Cyclone development is expected in the Atlantic for the next seven days.

Extended Hazard Outlook

Outlook Tuesday August 18th through Saturday August 22nd:

— Southeastern California, small portions of southeastern Nevada, and much of Arizona: Hazardous heat may create challenging travel conditions Tuesday, August 18 through Saturday, August 22. I-8, I-10, I-40 potentially impacted.

— Much of New Mexico through Oklahoma and Texas into the Lower Mississippi Valley and Southeast, with a small extension into southwestern Missouri: Hazardous heat may create challenging travel conditions Tuesday, August 18 through Saturday, August 22. I-4, I-10, I-20, I-25, I-30, I-35, I-40, I-55, I-65, I-74, I-75, I-85, I-87, I-95 potentially impacted.

— Eastern northern Plains, Upper Midwest, and western Great Lakes: Heavy rain Tuesday, August 18 may create localized flooding and reduced visibility. I-29, I-35, I-74, I-80, I-90, I-94 potentially impacted.

Extended Outlook August 23rd through August 29th:

— Southeastern California and the Southwest through the central and southern Plains into parts of the Lower Mississippi Valley and Southeast: Extreme heat may develop Sunday, August 23 through Thursday, August 27. The threat is more likely Sunday and Monday across southern Kansas, Oklahoma, Texas, southwestern Missouri, and the Lower Mississippi Valley, with smaller extensions into southwestern Tennessee, southwestern Alabama, and northwestern Florida. I-4, I-8, I-10, I-15, I-20, I-25, I-30, I-35, I-40, I-55, I-65, I-75, I-85, I-95 potentially impacted.

Confidence in the Extended Outlook:

Confidence is generally above average, with good agreement on the large-scale pattern and higher confidence in the persistent heat pattern. Precipitation details are less certain because the signals are weaker.

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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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