South Windsor Weather Forecast

    • 26
    • 29

    Increasing Clouds

    • 31
    • 43

    Rain

    • 22
    • 38

    Partly Sunny

    • 21
    • 34

    Mostly Cloudy

    • 18
    • 34

    Slight Chance Snow

    • 13
    • 29

    Mostly Sunny

Today 9 Dec Hartford

Mostly sunny. Cold with Highs in the upper 20s. Southwest Winds around 5 Mph.

Tonight 9 Dec Hartford

Mostly clear and Colder. Near steady temperature around 9 above. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Windsor Temperature Statistics

December Temperature

Hartford, Hartford-Brainard Airport (7.5 miles)

  • Lowest 5 December, 2025

    12.9 °F
  • Average December

    30 °F
  • Highest 1 December, 2025

    41 °F

Climate (2020–Present)

Hartford, Hartford-Brainard Airport (7.5 miles)

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  • Average Low 2020–2025

    45.3 °F
  • Average 2020–2025

    54.3 °F
  • Average High 2020–2025

    63.4 °F
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