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

• Parts of Florida and Georgia face flooding today; the Gulf Coast and Southeast may see heavy rains and strong winds Friday into next week, associated with a tropical system developing in the Gulf.
• Broad parts of California and southwestern Arizona face heat through Friday, with highs locally near 110 degrees.
• Heavy snow may make higher terrain and mountain passes difficult to travel in western Montana and northwestern Wyoming Sunday.

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:

— A small portion of California’s North Coast, a small portion of the Bay Area, and a small portion of California’s Central Coast, including San Francisco, Point Reyes, the San Francisco Peninsula, Monterey Bay and the Big Sur coast: Dense Fog Advisories continue until 9 a.m. today, with visibility one-quarter mile or less; fog is patchier along the North Coast, where visibility can change sharply. Routes potentially affected: I-80, US-101, US-199, CA-1, CA-36, CA-299.

— Portions of northern and central California, including the Sacramento and San Joaquin valleys, Delta, Carquinez Strait, Sierra Nevada foothills, Coastal West Hills: Heat Advisories continue through Friday evening, with highs generally 94 to 102 and moderate to areas of major heat risk. Overnight lows remain in the mid-60s to mid-70s, warmest in the Sierra foothills.

— Portions of California’s interior North Coast and Central Coast and the Bay Area, including the Santa Clara, southern Salinas and Santa Ynez valleys and the Santa Cruz and Santa Lucia mountains: Heat Advisories cover interior areas through Thursday, with highs from the 90s to 105; the interior North Coast has moderate to localized major heat risk. Central Coast beaches enter the advisory Wednesday and Thursday with highs of 80 to 95.

— Portions of Southern California, including southernmost coastal and inland areas, the Inland Empire, Cuyama, Santa Clarita and Ojai valleys, the Santa Ynez and Santa Monica mountains, Catalina, Santa Barbara, Santa Cruz and Anacapa islands: Extreme Heat Warnings remain in effect through Thursday. Coastal highs vary from the mid-80s at some beaches to 100 in warmer coastal areas; inland valleys and the Inland Empire reach the upper 90s to 106 degrees, while the Cuyama Valley and nearby mountains reach around 100. Nights remain mostly in the upper 60s to mid-70s. Routes potentially affected: I-5, I-8, I-10, I-15, US-101, CA-1, CA-2, CA-14, CA-18, CA-78.

— Portions of coastal California, including North Bay interior valleys and San Pablo Bay, Malibu, Southern California beaches, Catalina and Santa Barbara islands: Coastal Flood Advisories affect San Pablo Bay through Thursday, where up to 0.8 feet of inundation may flood low-lying infrastructure and close isolated roads. Southern California advisories run Wednesday through Friday with minor to moderate coastal flooding and erosion; southernmost beaches also face 3- to 5-foot surf with sets to 6 feet and strong rip currents.

— Small portion of the California Deserts and southwestern and west-central Arizona, including the Imperial, Coachella, Parker, Gila River, Palo Verde and Chuckwalla valleys and San Gorgonio Pass near Banning: Extreme Heat Watches cover the California deserts Wednesday through Friday. The Imperial Valley could reach 104 to 110 with Major Heat Risk, while the Coachella Valley and San Gorgonio Pass could reach 108 Thursday; a Thursday watch covers the lower Colorado River valleys of California and Arizona with highs of 103 to 106 and Major Heat Risk. Routes potentially affected: I-8, I-10, US-60, US-95, CA-62, CA-78, CA-86.

— A small portion of the California Deserts, including Death Valley National Park below 2,000 feet: An Extreme Heat Warning continues through Friday evening, with highs near 110 degrees and overnight lows around 85 degrees. Routes potentially affected: CA-168.

Weather Impacts Mountain:

— A small portion of southwestern Arizona, including Yuma: An Extreme Heat Watch is in effect Wednesday through Friday, with possible afternoon highs of 104 to 108 degrees. Routes potentially affected: I-8, US-95.

Weather Impacts Central:

— A small portion of northeastern Illinois along the Des Plaines River near Russell and downstream toward Gurnee: A Flood Warning continues until Wednesday afternoon. Minor flooding is occurring and forecast, inundating low-lying wetlands and agricultural land; the river is expected to fall below flood stage Wednesday morning. Routes potentially affected: I-41, I-94.

Weather Impacts East:

— Northern Maine and a portion of central Maine: A Wind Advisory is in effect from this morning through 5 p.m., with west winds of 20 to 30 mph and gusts to 50 mph. Downed tree limbs and a few power outages are possible, while mountaintop wind chills fall to 10 to 20 degrees. Routes potentially affected: I-95, US-1, US-2.

— A portion of New York’s Capital District: A Freeze Warning is in effect from midnight tonight through 8 a.m. Wednesday, with temperatures at or below 32 degrees and possible damage to sensitive vegetation and exposed outdoor plumbing.

— A small portion of southeastern Georgia, and a portion of northeastern Florida: A Flood Watch is in effect from late this morning through this evening. Rain-bands may produce 3 to 5 inches, with possible flooding of urban and poor-drainage areas, streams, rivers and other low-lying locations. Routes potentially affected: I-10, I-95, US-1, US-17, US-301.

— A small portion of southeastern Georgia and a small portion of northeastern Florida, including beaches, the Trout River and the St. Johns River Basin: Coastal Flood Advisories run from today into early Thursday, with minor flooding of lots, parks and roads. Georgia beaches face 5- to 7-foot breakers and northeastern Florida beaches 6- to 8-foot breakers, dangerous rip currents and localized erosion; the Trout and St. Johns river areas face minor flooding without the surf impacts.

— A small portion of northwestern Florida, including the Big Bend: A Flood Advisory continues until noon. Heavy rain has already produced up to 4 inches, with another 2 to 4 inches expected and minor flooding in low-lying and poor-drainage areas. Routes potentially affected: US-19, US-98.

Tropical Weather Outlook for the next 7 days:

— The southwestern Gulf of Mexico: A tropical disturbance has an 80% chance of becoming a depression within two days and through seven days. It should drift east-northeast through midweek before turning north, but specific impacts along the northern Gulf Coast remain undetermined. Interests along the Gulf Coast from Louisiana to the Florida Panhandle should stay informed of the National Hurricane Center forecasts.

— The eastern Pacific, about 600 miles west-southwest of the southern tip of Baja California: Hurricane Rachel has 85 mph winds and is moving west at 8 mph. Gradual weakening is forecast over the next 48 hours, followed by a turn toward the northeast and transition to a post-tropical system late in the period; swells will bring surf and rip currents to Baja California and Southern California for several days.

Extended Hazard Outlook

Outlook Thursday, October 8th through Monday, October 12th:

— Friday, October 9 through Monday, October 12: Central Gulf Coast into the Southeast: Heavy rain may create localized flooding and reduced visibility along the central Gulf Coast. On Sunday and Monday, the concern also includes much of Alabama and Georgia and parts of southeastern Tennessee and the western Carolinas. Major highways potentially affected include I-10, I-20, I-55, I-65, I-75, I-85.

— Sunday, October 11: Western Montana and northwestern Wyoming: Heavy snow may create difficult travel over higher terrain and mountain passes. Major highways potentially affected include I-15, I-90.

Extended Outlook Tuesday, October 13th through Saturday, October 17th:

— Tuesday, October 13 through Wednesday, October 14: Central Gulf Coast and Southeast, from coastal Louisiana to eastern North Carolina: Heavy precipitation may develop, potentially causing localized flooding and difficult travel. Major highways potentially affected include I-4, I-10, I-20, I-40, I-55, I-65, I-75, I-85, I-95.

— Tuesday, October 13 through Saturday, October 17: Southeastern Texas through the central Gulf Coast, northern and western Florida, and adjacent southwest Georgia: Strong winds may develop, associated with a potential tropical disturbance, creating hazardous crosswinds for high-profile vehicles. Major highways potentially affected include I-4, I-10, I-55, I-65, I-75.

Confidence in the Extended Outlook:

Confidence is average for the earlier period, with generally good agreement on the large-scale eastern pattern but greater uncertainty in the West, especially by Sunday. Confidence decreases later as forecast disagreement grows and temperature and precipitation signals become weaker or inconsistent.

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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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Some useful links:

High-resolution radar

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