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

Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

95°F

35°C

Humidity 22%
Wind Speed E 4 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Heat Index92°F (33°C)
Last update 04 Jul 02:52 PM PDT
Extended Forecast for

5 Miles NNW Cave Junction OR

  • Tonight

    Tonight: Mostly clear, with a low around 60. North northeast wind 3 to 8 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 89. East northeast wind 3 to 5 mph.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58. Northeast wind around 5 mph becoming calm after midnight.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 93. Light and variable wind.

    High: 93 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 59. West wind 5 to 9 mph becoming calm in the evening.

    Low: 59 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 60. North northeast wind 3 to 8 mph.
Sunday
Mostly sunny, with a high near 89. East northeast wind 3 to 5 mph.
Sunday Night
Mostly cloudy, with a low around 58. Northeast wind around 5 mph becoming calm after midnight.
Monday
Partly sunny, then gradually becoming sunny, with a high near 93. Light and variable wind.
Monday Night
Clear, with a low around 59. West wind 5 to 9 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 52.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Clear, with a low around 54.
Thursday
Sunny, with a high near 88.
Thursday Night
Clear, with a low around 54.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Cave Junction OR
 42.25°N 123.69°W (Elev. 1499 ft)
Last Update:
2:39 pm PDT Jul 4, 2026
Forecast Valid:
3pm PDT Jul 4, 2026-6pm PDT Jul 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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