Colby Lake Weather Forecast

    • 64
    • 79

    Rain Showers Likely

    • 60
    • 70

    Rain Showers

    • 59
    • 71

    Chance Thunderstorms

    • 60
    • 75

    Chance Thunderstorms

    • 59
    • 76

    Slight Chance Thunderstorms

    • 56
    • 71

    Slight Chance Rain Showers

Today 18 Sep Washington

Partly sunny. Slight chance of Thunderstorms early in the afternoon. Chance of Thunderstorms late in the afternoon. Highs in the upper 70s. Southeast Winds up to 10 Mph. Chance of Thunderstorms 30 percent.

Tonight 18 Sep Washington

Chance of Thunderstorms in the Evening, then Showers likely and chance of Thunderstorms after midnight. Lows in the mid 60s. East Winds up to 5 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Colby Lake Temperature Statistics

September Temperature

South St. Paul Municipal-Richard E. Flemi (6.2 miles)

  • Lowest 7 September, 2025

    43.5 °F

  • Average September

    65 °F

  • Highest 16 September, 2025

    90.5 °F

Climate (2020–Present)

South St. Paul Municipal-Richard E. Flemi (6.2 miles)

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  • Average Low 2020–2025

    39.9 °F

  • Average 2020–2025

    48.4 °F

  • Average High 2020–2025

    56.9 °F
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