Cotherman Lake Weather Forecast

    • 58
    • 85

    Mostly Sunny

    • 58
    • 85

    Partly Sunny

    • 58
    • 82

    Chance Rain Showers

    • 61
    • 80

    Rain Showers Likely

    • 59
    • 76

    Chance Thunderstorms

    • 56
    • 75

    Chance Rain Showers

Today 18 Sep St. Joseph

Mostly sunny. Highs in the mid 80s. Light and variable Winds, becoming northwest around 5 Mph.

Tonight 18 Sep St. Joseph

Mostly clear. Patchy fog after midnight. Lows in the upper 50s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cotherman Lake Temperature Statistics

September Temperature

Haines Memorial Airport (6.2 miles)

  • Lowest 8 September, 2025

    39.2 °F

  • Average September

    61.5 °F

  • Highest 15 September, 2025

    86 °F

Climate (2020–Present)

Haines Memorial Airport (6.2 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    51.2 °F

  • Average High 2020–2025

    60.3 °F
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