O'Brien Lake Weather Forecast

    • 23
    • 40

    Rain

    • 28
    • 34

    Mostly Cloudy

    • 32
    • 47

    Slight Chance Rain

    • 23
    • 38

    Mostly Cloudy

    • 26
    • 33

    Mostly Cloudy

    • 29
    • 41

    Rain/Snow Likely

Today 31 Jan Southern Berrien

Rain. Patchy fog. Highs in the lower 40s. East Winds 5 to 10 Mph, becoming northeast 10 to 15 Mph with Gusts up to 25 Mph in the afternoon. Chance of rain near 100 percent.

Tonight 31 Jan Southern Berrien

Rain likely. Patchy fog. Near steady temperature in the upper 30s. Southeast Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

O'Brien Lake Temperature Statistics

January Temperature

Southwest Michigan Regional Airport (13 miles)

  • Lowest 21 January, 2025

    -2.1 °F

  • Average January

    26.5 °F

  • Highest 17 January, 2025

    46.7 °F

Climate (2020–Present)

Southwest Michigan Regional Airport (13 miles)

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  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    60.4 °F
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