RV Weather Road Trip Forecast for Sunday June 21, 2026

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

Severe storms and flash flooding threaten major Central U.S. travel corridors today into Monday
Flooding may disrupt travel from Kansas and Nebraska into the Mid-Mississippi and Gulf Coast regions
Heat builds across the West, Southwest, Texas, and Gulf Coast travel corridors

Your route’s weather may vary from the general forecast — check your exact trip

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Significant travel weather for the next 2-3 days.

NEW: Extended forecast for the next 2 weeks now included!

Weather Impacts Pacific

— Western Washington, western Oregon, Columbia Gorge, and far northern California interior valleys and foothills: Heat Advisory areas begin Monday morning and continue through Tuesday night, with some western Washington lowlands continuing into Wednesday night. Temperatures may climb to near 100 deg F.

— Southern California San Fernando Valley, San Gabriel Valley, Santa Clarita Valley, and San Gabriel Mountains: Extreme Heat Watch begins Tuesday morning and continues through Thursday evening, with dangerously hot conditions and temperatures up to 100 possible, hottest Wednesday and Thursday. I-5, I-10, US-101, CA-14 potentially impacted.

Weather Impacts Mountain:

— Southeastern Montana, eastern Wyoming, eastern Colorado, and northeastern New Mexico fringe: Widely scattered severe thunderstorms are expected Monday afternoon and evening. Large hail is the primary expected hazard. The greatest risk of severe weather will be across eastern Wyoming and northeastern Colorado. I-25, I-40, I-70, I-76, I-80, I-90, I-94 potentially impacted.

— Southern and southwest Colorado: Red Flag Warnings today and Monday, with gusts up to 35 to 40 mph. US-24, US-50, US-84, US-160, US-285, US-491, US-550 impacted.

— Eastern Colorado: Severe thunderstorms are possible this afternoon into tonight, with large hail, severe winds, and chance of a tornado. 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.

— North-central and eastern Colorado: Severe thunderstorms are expected Tuesday afternoon and evening, with scattered severe storms expected across the central High Plains and large hail and damaging wind gusts the primary threats. I-25, I-70, I-76, I-80, US-6, US-24, US-30, US-34, US-36, US-40, US-50, US-56, US-85, US-160, US-285, US-287, US-385, US-400 potentially impacted.

— North-central Arizona Grand Canyon National Park below 4000 feet: Extreme Heat Warning Monday and Tuesday. Dangerously hot conditions expected below 4000 feet, with daytime temperatures ranging from 101 degrees at Havasupai Gardens, to 112 degrees at Phantom Ranch.

— Southeastern New Mexico and far-west Texas plains, plus the southwest New Mexico lowlands and El Paso-area valleys: Heat Advisories today and again Monday, with temperatures up to 106 to 109 deg F.

Weather Impacts Central:

— Southwest South Dakota, western Nebraska, western and southern Kansas, Oklahoma, northern Texas, Arkansas, northern Louisiana, much of Mississippi and Alabama, and Kentucky and Tennessee: Isolated to scattered severe storms are possible Monday afternoon and evening along a frontal zone from the southern Plains into the Mid-South and southern Appalachians, while widely scattered severe thunderstorms are expected across the central and northern High Plains. Hail is the primary hazard, with damaging wind also possible. The greatest risk of severe weather will be across southwest South Dakota and western Nebraska. I-20, I-22, I-24, I-27, I-30, I-35, I-40, I-44, I-45, I-49, I-55, I-59, I-65, I-69, I-70, I-75, I-76, I-80, I-85, I-90 potentially impacted.

— Eastern South Dakota, much of Minnesota, northwestern Wisconsin, northern and western Iowa, most of Nebraska and Kansas, western Oklahoma, and the northern Texas Panhandle: Severe thunderstorms are expected Tuesday afternoon and evening, with scattered severe storms expected in the central High Plains and isolated severe storms possible into the Upper Midwest. Large hail and damaging wind gusts are the primary threats. The greatest risk of severe weather will be across western Kansas. I-27, I-29, I-35, I-35E, I-35W, I-40, I-70, I-76, I-80, I-90, I-94 potentially impacted.

— Northern Wisconsin: Patchy dense fog this morning, with visibility below one-half mile at times, especially in low-lying areas. I-39, US-2, US-8, US-10, US-45, US-51, US-141 impacted.

— Central Nebraska, eastern Nebraska, and southwest Iowa: Flood Warnings, Watches and Advisories continue today. Widespread rainfall totals of 1 to 3 inches with up to 5 inches in localized areas. Expect high water in poor-drainage areas and slower travel near streams and low-water crossings. I-29, I-80, US-6, US-30, US-34, US-71, US-77, US-136, US-281 impacted.

— Most of Nebraska, Kansas, Oklahoma and adjacent north-Texas, much of Illinois, Missouri, northern Arkansas, Kentucky and western Tennessee: Severe thunderstorms are possible this afternoon into tonight, with large to very large hail, severe winds, and tornadoes possible; some stronger tornado potential is noted farther east in the broader Ohio Valley corridor. I-22, I-24, I-27, I-29, I-30, I-35, I-39, I-40, I-44, I-49, I-55, I-57, I-64, I-65, I-69, I-70, I-72, I-74, I-76, I-80 potentially impacted.

— Central, eastern, and southeast Kansas into northwest Missouri: FLASH FLOOD WARNINGS, and broader Flood Warnings, Watches and Advisories continue today. Additional rainfall amounts of 1 to 3 inches will be common, with some localized areas seeing another 3 to 6 inches. Areas in northwest Kansas have already observed up to 7.5 inches of rainfall. High water, ponding, and flooded low spots may slow or block travel. I-29, I-35, I-70, US-36, US-50, US-54, US-56, US-59, US-77, US-83, US-400 impacted.

— Much of Oklahoma and adjacent northern Texas, Arkansas, southern and eastern Kentucky, Tennessee, northern and central Mississippi, and northern Alabama: Flash flooding is possible Monday through early Tuesday as excessive-rainfall risk extends from the southern Plains into the Mid-South. I-20, I-22, I-24, I-30, I-35, I-40, I-44, I-45, I-49, I-55, I-59, I-65, I-69, I-75 potentially impacted.

— Southeast Texas, southern Louisiana, southwest and coastal Mississippi, southern Alabama, and the Florida Panhandle: Flood Warnings continue through at least Tuesday for rivers and streams including the Pearl, Pascagoula, Biloxi, Wolf, Strong, Tombigbee, Yellow, Calcasieu, Sabine, Medina, and related creeks and lowlands, with minor to moderate flooding forecast or ongoing in several locations. Expect road closures or high water near low-lying river crossings. I-10, I-37, I-49, I-59, US-29, US-43, US-49, US-71, US-90, US-98, US-167, US-190, US-281 impacted.

— Texas Panhandle, west Texas, and parts of Oklahoma and Arkansas: Heat Advisories today, with heat index values up to 105 to 108 and temperatures up to 106 in some west-Texas locations.

— Missouri, southern Iowa, western and central Illinois, southern Illinois, and southwest Indiana: Flood Watches continue into Monday, with 2 to 3 inches of additional rainfall expected. Some location may see up to 6 more inches of rain. Flash flooding and areal flooding may affect creeks, streams, low-lying roads, and urban drainage areas. I-39, I-44, I-55, I-57, I-64, I-69, I-70, I-72, I-74 impacted.

— Middle Tennessee and adjacent north-central Alabama: Dense Fog Advisory this morning, with visibility less than one mile. I-24, I-40, I-65, US-64, US-70, US-412 impacted.

Weather Impacts Eastern:

— Most of Indiana, western Ohio, and central and western Kentucky: Severe thunderstorms are possible this afternoon into tonight, with large hail, severe winds, and tornadoes possible. I-64, I-65, I-69, I-70, I-71, I-74, I-75 potentially impacted.

— Central and southern Indiana: Flood Watch begins this afternoon and continues through Monday morning, with 1 to 3 inches of rain expected and locally higher amounts possible. I-64, I-65, I-69, I-70, I-74, US-31, US-36, US-421 potentially impacted.

— Southern Ohio, northeast Kentucky, and West Virginia valleys: Patchy valley fog this morning, with visibility as low as one-half mile in some locations. I-64, I-77, I-79, US-19, US-23, US-33, US-50, US-52, US-60, US-68, US-119 impacted.

— Southern Ohio, Kentucky, Tennessee, West Virginia, central and southern Pennsylvania, New Jersey, Delaware, Maryland, District of Columbia, Virginia, most of North and South Carolina, and northern Georgia: Scattered severe thunderstorms are possible Monday afternoon and evening across the Mid-Atlantic, with more isolated severe storms extending southwest along the frontal zone. Damaging winds are the primary hazard, although a tornado or two cannot be ruled out. The greatest risk of severe weather will be across Delaware, most of Maryland, District of Columbia, most of Virginia, and central North Carolina. I-20, I-24, I-26, I-40, I-59, I-64, I-65, I-66, I-68, 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-84, I-85, I-87, I-95, I-97, I-99 potentially impacted.

— Central and western Pennsylvania: Dense Fog Advisories this morning, with visibility near one-quarter mile. I-76, I-79, I-80, I-99, US-6, US-22, US-219, US-322, US-422 impacted.

— Eastern Kentucky and Tennessee, West Virginia, southwest, central and eastern Pennsylvania, New Jersey, much of Maryland, District of Columbia, northern Virginia: Flash flooding is possible Monday through early Tuesday as excessive-rainfall risk extends into the Northeast and Mid-Atlantic. I-26, I-40, I-64, I-65, I-66, I-68, I-70, I-75, I-76, I-77, I-78, I-79, I-80, I-81, I-83, I-84, I-87, I-95, I-97, I-99 potentially impacted.

— Southeast Georgia: Patchy dense fog continues through this morning from Brunswick inland to Jesup and Waycross, with local visibility as low as one-quarter mile or less at times. I-95, US-1, US-23, US-25, US-84 impacted.

Outlook Tuesday June 23rd through Saturday June 27th:

— Tuesday, June 23: from northeastern Pennsylvania into Connecticut and nearby areas: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-84, I-87, I-90, I-91, I-95.

— Tuesday, June 23: small portions of eastern Georgia, much of South Carolina, and much of North Carolina: Heat concerns may create challenging conditions. Major highways potentially affected include I-20, I-40, I-74, I-95.

— Tuesday, June 23 through Wednesday, June 24: from southeastern New Mexico across Texas and the Gulf Coast into Georgia and southern South Carolina: Heat concerns may create challenging conditions. Major highways potentially affected include I-10, I-20, I-35, I-55, I-65, I-75, I-95.

— Tuesday, June 23 through Friday, June 26: from southeastern Colorado and southern Kansas through Oklahoma and Arkansas into the Mid-South: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-30, I-35, I-40, I-55.

— Tuesday, June 23 through Saturday, June 27: most of Florida and small portions of southeastern Georgia: Heat concerns may create challenging conditions. Major highways potentially affected include I-4, I-10, I-75, I-95.

— Wednesday June 24: Southeast Wyoming and northeast Colorado: Severe Thunderstorms expected. Major highways potentially affected include I-25, I-70, I-80.

— Wednesday, June 24 through Thursday, June 25: southeastern California, southern Nevada, much of Arizona, southwestern New Mexico, and western Texas: Heat concerns may create challenging conditions. Major highways potentially affected include I-8, I-10, I-15, I-20, I-25, I-40.

— Thursday 25 June: Eastern Wyoming and adjacent northeast Colorado: Severe Thunderstorms expected. Major highways potentially affected include I-25, I-80, I-90.

— Friday, June 26 through Saturday, June 27: from southeastern Colorado and Kansas through Missouri into portions of the lower Ohio Valley: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-29, I-35, I-55, I-64, I-70.

Extended Outlook June 28th through July 4th:

— Sunday, June 28 through Tuesday, June 30: from the eastern Dakotas and Upper Midwest into the Great Lakes and western Ohio: Heavy precipitation may develop, which could create localized flooding and reduced visibility. Major highways potentially affected include I-29, I-35, I-55, I-64, I-65, I-70, I-74, I-75, I-80, I-90, I-94.

— Sunday, June 28 through Saturday, July 4: from southeastern Colorado and southeastern New Mexico across the southern Plains into the lower Mississippi Valley: Heat concerns may develop, which could create challenging travel conditions. Major highways potentially affected include I-10, I-20, I-30, I-35, I-40, I-55, I-70.

— Sunday, June 28 through Saturday, July 4: from the Southeast into the Mid-Atlantic and adjacent Northeast: Heat concerns may develop, which could create challenging travel conditions. Major highways potentially affected include I-4, I-10, I-20, I-40, I-64, I-65, I-70, I-74, I-75, I-76, I-85, I-87, I-95.

Forecast Confidence for the Extended Outlook:

Confidence is generally average earlier in the outlook, with good large-scale agreement but some uncertainty in the details later in the first period. Confidence decreases to below average later in the outlook because the pattern becomes less well defined, with weaker signals and more uncertainty in temperature and precipitation details.

Looking for real-time road conditions? Here’s a link, courtesy of the Federal Highway Administration, to all the individual State 511 websites.

Your route’s weather may vary from the general forecast — check your exact trip

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