The Sigurd Anderson Airport Weather Forecast

    • 56
    • 70

    Rain Showers

    • 55
    • 66

    Chance Rain Showers

    • 55
    • 72

    Partly Sunny

    • 57
    • 75

    Partly Sunny

    • 52
    • 72

    Slight Chance Thunderstorms

    • 52
    • 71

    Mostly Sunny

Today 18 Sep Day

Patchy fog in the morning. A chance of Showers with a slight chance of Thunderstorms in the Morning, then Showers with a chance of Thunderstorms in the afternoon. Highs in the upper 60s. East Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 80 percent.

Tonight 18 Sep Day

Mostly cloudy. A chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 50s. East Winds 5 to 10 Mph, becoming south after midnight. Chance of rain 40 percent.

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The Sigurd Anderson Airport Temperature Statistics

September Temperature

Watertown, Watertown Municipal Airport (31.7 miles)

  • Lowest 7 September, 2025

    37.9 °F

  • Average September

    63.1 °F

  • Highest 14 September, 2025

    84 °F

Climate (2020–Present)

Watertown, Watertown Municipal Airport (31.7 miles)

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  • Average Low 2020–2025

    35 °F

  • Average 2020–2025

    45.2 °F

  • Average High 2020–2025

    55.6 °F
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