Illinois Valley Airport Weather Forecast

    • 35
    • 50

    Freezing Fog

    • 40
    • 49

    Rain

    • 42
    • 50

    Rain

    • 37
    • 53

    Rain

    • 34
    • 45

    Rain

    • 33
    • 46

    Rain Likely

    • 34
    • 49

    Rain Likely

Today 30 Dec Eastern Curry County and Josephine County

Sunny. Highs in the mid 40s to mid 50s. South Winds around 5 Mph.

Tonight 30 Dec Eastern Curry County and Josephine County

Mostly clear in the evening then becoming partly cloudy. Widespread fog and freezing fog after midnight. Lows in the mid 30s in the Valleys and in the lower to mid 40s at higher Elevations. Light Winds in the Valleys and south 5 to 10 Mph at higher Elevations.

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Illinois Valley Airport Temperature Statistics

December Temperature

Brookings, Brookings Airport (31.1 miles)

  • Lowest 20 December, 2025

    35.1 °F

  • Average December

    49.9 °F

  • Highest 12 December, 2025

    63 °F

Climate (2020–Present)

Brookings, Brookings Airport (31.1 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    53.2 °F

  • Average High 2020–2025

    60.4 °F
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