Phillips Reservoir Weather Forecast

    • 16
    • 23

    Mostly Cloudy

    • 24
    • 34

    Chance Snow

    • 18
    • 32

    Snow

    • 15
    • 25

    Slight Chance Snow

    • 27
    • 34

    Partly Sunny

    • 30
    • 38

    Mostly Cloudy

Today 3 Dec Southwest Phillips

Patchy freezing fog this morning. Partly sunny. Highs in the mid 20s. Southwest wind 5 to 10 Mph. Wind chill Values around 5 below.

Tonight 3 Dec Southwest Phillips

Mostly cloudy in the Evening, then becoming partly cloudy. Lows 15 to 20. West wind 15 to 20 Mph. Gusts up to 35 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Phillips Reservoir Temperature Statistics

December Temperature

Lewistown, Lewistown Municipal Airport (66.5 miles)

  • Lowest 1 December, 2025

    12.9 °F

  • Average December

    25.8 °F

  • Highest 1 December, 2025

    34 °F

Climate (2020–Present)

Lewistown, Lewistown Municipal Airport (66.5 miles)

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  • Average Low 2020–2025

    32.4 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    56.5 °F
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