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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

86°F

30°C

Humidity 12%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Heat Index83°F (28°C)
Last update 18 Mar 03:52 PM PDT
Extended Forecast for

15 Miles ESE Cave Junction OR

  • Tonight

    Tonight: Clear, with a low around 55. South wind 5 to 7 mph.

    Low: 55 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 69. South southwest wind 5 to 7 mph.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. South southwest wind around 7 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 66. Calm wind becoming west around 6 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. West northwest wind 5 to 9 mph.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 55. South wind 5 to 7 mph.
Thursday
Sunny, with a high near 69. South southwest wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 57. South southwest wind around 7 mph.
Friday
Mostly sunny, with a high near 66. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 47. West northwest wind 5 to 9 mph.
Saturday
Partly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Partly sunny, with a high near 61.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 47.
Tuesday
A chance of showers. Mostly cloudy, with a high near 62.
Tuesday Night
Showers likely. Snow level 7900 feet lowering to 6400 feet after midnight . Mostly cloudy, with a low around 41.
Wednesday
A chance of showers. Snow level 5700 feet. Partly sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Cave Junction OR
 42.12°N 123.36°W (Elev. 3658 ft)
Last Update:
3:21 pm PDT Mar 18, 2026
Forecast Valid:
4pm PDT Mar 18, 2026-6pm PDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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