---

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

• Ongoing flash flooding threatens the New York City–Philadelphia corridor and parts of southern New England this morning, with rainfall rates up to 2 inches per hour and water covering urban roads and underpasses.
• Extreme heat persists across much of the interior West through midweek, with localized highs near 120 degrees in the Mojave Desert and additional heat possible into the weekend across western Nevada and northeast California.
• Severe thunderstorms may disrupt travel from the eastern Dakotas and Nebraska into Minnesota today, with damaging winds, large hail and a tornado possible.

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.

---

Significant travel weather for the next 2-3 days.

Weather Impacts Pacific:

— Southwest Washington and northwest and west-central Oregon: Heat Advisories Tuesday and Wednesday, with afternoon temperatures of 95 to 100 degrees.

— Southwest Oregon: Red Flag Warnings today and Tuesday, with gusts up to 25 mph supporting rapid fire spread. I-5, US-20, US-199 impacted.

— Southern Oregon and northern and central interior California: Heat Advisories affect different areas today through Thursday, with temperatures locally reaching 113 degrees. This includes San Jose, the Sacramento and San Joaquin valleys, and interior northwest California.

— Western Nevada and northeast California: Extreme Heat Watches Thursday through Sunday follow Wednesday’s and Thursday’s Heat Advisories, with highs reaching 106 degrees. I-80, US-6, US-50, US-95, US-395, CA-36 impacted.

— Southern and western Nevada, central and Southern California, and northwest Arizona: Extreme Heat Warnings and Heat Advisories affect different areas today through Thursday. Highs reach 110 to 120 degrees in the Mojave Desert and Death Valley National Park, with temperatures up to 118 in the Imperial Valley and Salton Sea; dangerous heat also affects Joshua Tree National Park, Southern California’s inland valleys, mountains and deserts, and San Gorgonio Pass. I-8, I-10, I-11, I-15, I-40, US-6, US-60, US-93, US-95, US-180 impacted.

Weather Impacts Mountain:

— Southeast Montana, eastern and southern Wyoming, and western South Dakota: Red Flag Warnings today, with gusts up to 50 mph supporting rapid fire spread. I-25, I-80, I-90, US-12, US-14, US-16, US-18, US-20 impacted.

— Eastern and southern Utah and southwest Colorado: Red Flag Warnings today and Tuesday, with gusts up to 35 mph. I-15, I-70, US-6, US-40, US-50, US-89, US-160 impacted.

— Eastern and southern Utah and parts of west-central, south-central and eastern Colorado: Extreme Heat Warnings and Heat Advisories today and Tuesday, with highs reaching 112 degrees in southwest Utah and 109 degrees on Colorado’s eastern plains. Zion, Capitol Reef, Arches and Canyonlands national parks, along with Denver, Colorado Springs and Pueblo, are included. I-15, I-70, US-6, US-50, US-89, US-191 impacted.

— South-central Colorado and northeastern New Mexico along the I-25 corridor: Isolated severe thunderstorms may produce severe wind gusts and marginally severe hail Tuesday afternoon and evening, and again Wednesday afternoon and evening. I-25, US-56, US-64, US-84, US-85, US-87, US-160, US-285 potentially impacted.

— Much of Arizona, including Phoenix, Tucson, Grand Canyon National Park and Organ Pipe Cactus National Monument: Extreme Heat Warnings and a Heat Advisory today and Tuesday, with highs reaching 115 degrees around Phoenix and 114 degrees below 4,000 feet in Grand Canyon National Park. I-8, I-10, I-17, I-19, US-60, US-70, US-89A, US-93, US-180 impacted.

— South-central and southeast Arizona, including Tucson: Blowing Dust Advisories from 2 to 10 p.m. MST today, with thunderstorm outflow gusts of 40 to 55 mph reducing visibility to one-quarter mile to one mile and possibly near zero in a haboob. I-10, I-19, US-70, US-191 impacted.

— South-central and southeast Arizona: A Flood Watch from 2 to 10 p.m. MST today, with most storms producing one-half to 1 inch of rain and isolated totals of 1 to 3 inches. Runoff may flood normally dry washes, roadway dips and other low areas. I-10, I-19 potentially impacted.

— South-central and southeast Arizona and adjacent southwest New Mexico: Isolated severe thunderstorms may produce severe wind gusts and marginally severe hail each afternoon and evening today, Tuesday and Wednesday. I-10, I-19, US-70, US-89, US-191 potentially impacted.

— Northwest and north-central, central, and east-central New Mexico, including Albuquerque and Santa Fe: Heat Advisories today, with temperatures up to 105 degrees.

Weather Impacts Central:

— Southwest and south-central North Dakota, western and central South Dakota, and the Nebraska Panhandle: Red Flag Warnings today, with gusts up to 45 mph. I-76, I-80, I-90, I-94, US-12, US-14, US-20, US-26, US-30 impacted.

— Eastern North Dakota, eastern South Dakota, central and southwest Nebraska, and western, central and northern Minnesota: Scattered severe thunderstorms may produce damaging winds, large hail and a tornado today. The greatest risk of severe weather will be across central and north-central Minnesota. I-29, I-76, I-80, I-90, I-94, US-2, US-6, US-10, US-12, US-14, US-18, US-20, US-26, US-30, US-34, US-52, US-53, US-59, US-71, US-81, US-83, US-169, US-212, US-281, US-385 potentially impacted.

— Southeast Nebraska, southern Wisconsin, central, southern and eastern Iowa, northern Missouri, and northern Illinois: Heavy rain Wednesday into early Thursday may produce flash flooding, with rainfall rates locally reaching 2.5 inches per hour. I-29, I-35, I-39, I-41, I-43, I-55, I-57, I-74, I-80, I-88, I-90, I-94 potentially impacted.

— Southwest Kansas, parts of the the Oklahoma and Texas Panhandles, and northwest Texas: Heat Advisories today, with temperatures up to 107 degrees and heat-index values up to 103 degrees.

— Eastern Kansas, northern and central Missouri, and west-central Illinois: Isolated severe thunderstorms are possible Wednesday afternoon and evening. I-29, I-35, I-49, I-55, I-64, I-70, I-72, I-74 potentially impacted.

— Central and southeast Iowa, northern Missouri, northern and central Illinois, and adjacent northwest Indiana: Patchy dense fog this morning may reduce visibility below one-quarter mile and locally near zero, causing abrupt changes in driving conditions. I-35, I-39, I-55, I-57, I-65, I-70, I-72, I-74, I-80, I-88, I-90, I-94 impacted.

— Florida Panhandle and Big Bend Region: A Flood Watch today after 5 to 9 inches of rain since Friday, with another 1 to 3 inches expected. Some locations may see up to an additional 4 to 6 inches of rain. Flooding may affect urban roads, poor-drainage areas and small streams. I-10, US-19, US-27, US-98, US-231 potentially impacted.

Weather Impacts East:

— Central Massachusetts, north-central and western Connecticut, Southeast New York, northeast, central and southwest New Jersey, and southeast Pennsylvania, including New York City, Philadelphia, and Trenton: FLASH FLOOD WARNINGS this morning. Between 1 and 3 inches of rain have fallen. Rainfall rates of 1 to 2 inches per hour are expected, and another 1 to 2 inches is possible; flash flooding may cover highways, streets and underpasses. Major highways impacted include I-76, I-78, I-80, I-84, I-87, I-90, I-91, I-95, I-287.

— Central and east-central Indiana: Fog this morning may suddenly reduce visibility to one-half mile or less and slow travel. I-65, I-69, I-70, I-74, US-27, US-36, US-421 impacted.

— Down-east Maine and coastal New Hampshire: A Dense Fog Advisory and areas of dense fog this morning may reduce visibility to one-quarter mile or less. I-95, US-1, US-2, US-4, US-201 impacted.

— Central and southern New Hampshire: A Flood Advisory this morning after one-half to 1 inch of rain, with another 1 to 2 inches expected. Water over roads and urban and small-stream flooding are occurring or imminent. I-93, US-3, US-4 impacted.

— New Hampshire, Vermont, western and central Massachusetts, most of Connecticut, eastern New York, and most of New Jersey: Isolated severe thunderstorms with damaging wind gusts and the chance for an isolated tornado today. I-76, I-78, I-80, I-84, I-86, I-87, I-89, I-90, I-91, I-93, I-95 potentially impacted.

— Southern Connecticut, southeast New York, and northeast New Jersey: Flood Watches and Flood Advisories today, with another one-half to 1 inch possible and rain rates of 1 to 2 inches per hour around New York City. Minor flooding may affect low-lying and poor-drainage roads. I-78, I-80, I-84, I-87, I-91, I-95 impacted.

— Eastern Pennsylvania, northern Delaware, and New Jersey: A Flood Watch today for multiple rounds of storms producing 1 to 2 inches of rain, localized totals of 3 to 5 inches, and rates of 1 to 3 inches per hour. Urban and poor-drainage roads may flood. I-76, I-78, I-80, I-95, US-13, US-22, US-30, US-40, US-202 potentially impacted.

— Maryland’s Annapolis shoreline: A Coastal Flood Advisory through 10 a.m. EDT, especially around high tide, with up to one-half foot of inundation above ground level affecting vulnerable low-lying waterfront areas.

— Southwest Virginia, including the city of Ararat: A Flash Flood Watch today because a potential failure at Dams #2, #28, #63 or Epperson Dam could flood low-lying areas below the dams. No integrity threat had been identified when the watch was issued. US-58 potentially impacted.

— Eastern North Carolina: A Flood Watch today, with 1 to 2 inches of rain and locally higher totals where slow-moving storms linger. Poor-drainage and urban roads may flood. US-17, US-64, US-70, US-158, US-264 potentially impacted.

— Coastal North and South Carolina: Training thunderstorms today could produce 3 to 5 inches of rain, with rates of 1 inch per hour or more, creating a flash-flood risk on urban and low-lying roads. I-26, I-40, US-17, US-52, US-70, US-74, US-78, US-264, US-421, NC-12 potentially impacted.

— Central and western North Carolina and upstate South Carolina: Isolated severe thunderstorms may produce locally damaging winds Tuesday. I-20, I-26, I-40, I-73, I-74, I-77, I-85, I-95 potentially impacted.

— Upstate South Carolina: Dense Fog Advisory this morning. I-26, I-85 impacted.

— Northwest and west-central Florida Peninsula: Flood Watches and a Flood Advisory today after 2 to 5 inches of weekend rain in part of northern Florida and 1 to 3 inches in the advisory area. Another 1 to 3 inches is possible, with ponding and flooding of low-lying, urban and poor-drainage roads. I-10, I-75, US-19, US-27, US-41, US-98, US-301 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 Wednesday August 5th through Sunday August 9th:

— Wednesday, August 5: From the eastern central Plains across Iowa and northern Missouri into Illinois, southeastern Wisconsin, and northwestern Indiana: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-29, I-35, I-55, I-65, I-74, I-80, I-90, I-94.

— Wednesday, August 5 through Sunday, August 9: From California and the interior West through the southern Plains and Lower Mississippi Valley: Hazardous heat may create challenging conditions. The affected area expands into southeastern Oregon, Idaho, and the northern Great Basin Thursday through Sunday. 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-70, I-80, I-84.

— Friday, August 7 through Sunday, August 9: From the central Rockies and High Plains into the central Plains and mid-Mississippi Valley: Hazardous heat may create challenging conditions. The eastern portion of the affected area develops Saturday and Sunday. Major highways potentially affected include I-25, I-29, I-35, I-55, I-64, I-70, I-76, I-80, I-90.

— Friday, August 7 through Sunday, August 9: From the Mid-South into Alabama and northwestern Florida: Hazardous heat may create challenging conditions. Major highways potentially affected include I-10, I-20, I-40, I-55, I-65, I-85.

Extended Outlook August 10th through August 16th:

— Monday, August 10 through Sunday, August 16: Extreme heat is likely Monday, August 10 through Tuesday, August 11 from the central Intermountain West and Rockies into the central Plains, and Monday, August 10 through Sunday, August 16 from the central and southern Plains through the mid-Mississippi and Lower Mississippi valleys. Major highways potentially affected include I-4, I-5, 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-80, I-84, I-85, I-87, I-90, I-94, I-95.

— Monday, August 10 through Sunday, August 16: From southeastern California and southern Nevada through Utah and Arizona into Colorado and New Mexico: Heavy precipitation may develop, creating localized flooding and difficult travel. Heavy precipitation is likely Monday, August 10 through Friday, August 14 across most of Arizona and nearby portions of southeastern Utah, southwestern Colorado, and northwestern New Mexico. Major highways potentially affected include I-8, I-10, I-15, I-25, I-40, I-70.

— Monday, August 10 through Wednesday, August 12: From the Upper Midwest and Great Lakes through the Ohio Valley into the central Appalachians: Heavy precipitation may develop, creating localized flooding and difficult travel. Major highways potentially affected include I-55, I-64, I-65, I-70, I-71, I-74, I-75, I-76, I-79, I-80, I-90, I-94.

Confidence in the Extended Outlook:

Confidence is average overall, with generally good agreement on the large-scale pattern and greater uncertainty in the details later in the outlook.

---

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

---

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

---

Some useful links:

High-resolution radar

Your local forecast

Thank you for using RVWeather.