National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

84°F

29°C

Humidity 34%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Heat Index82°F (28°C)
Last update 15 Aug 12:52 PM PDT
Extended Forecast for

5 Miles SE Illinois Valley OR

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 85. West southwest wind 5 to 9 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 11pm. Partly cloudy, with a low around 56. Southwest wind 5 to 9 mph becoming light south southwest in the evening.

    Low: 56 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly before 11am. Mostly cloudy, with a high near 78. West southwest wind 3 to 8 mph. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 53. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 85. West southwest wind 5 to 9 mph.
Tonight
A 30 percent chance of showers, mainly after 11pm. Partly cloudy, with a low around 56. Southwest wind 5 to 9 mph becoming light south southwest in the evening.
Saturday
Showers likely, mainly before 11am. Mostly cloudy, with a high near 78. West southwest wind 3 to 8 mph. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 53. Southwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Sunny, with a high near 83.
Monday Night
Clear, with a low around 47.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Clear, with a low around 50.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Clear, with a low around 52.
Thursday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Illinois Valley OR
 42.03°N 123.63°W (Elev. 1998 ft)
Last Update:
10:40 am PDT Aug 15, 2025
Forecast Valid:
1pm PDT Aug 15, 2025-6pm PDT Aug 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation