Collinsville Weather Forecast

    • 50
    • 65

    Increasing Clouds

    • 53
    • 68

    Rain Likely

    • 54
    • 60

    Rain Showers

    • 54
    • 60

    Rain Showers

    • 54
    • 64

    Slight Chance Rain Showers

    • 53
    • 69

    Partly Sunny

    • 56
    • 72

    Partly Sunny

Today 24 Sep Hartford

Partly sunny. Highs in the mid 70s.

Tonight 24 Sep Hartford

Partly cloudy. Lows around 50. North Winds 5 to 10 Mph. Gusts up to 25 Mph this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Collinsville Temperature Statistics

September Temperature

Hartford, Hartford-Brainard Airport (14.3 miles)

  • Lowest 15 September, 2026

    48 °F

  • Average September

    67.3 °F

  • Highest 10 September, 2026

    86 °F

Climate (2021–2026)

Hartford, Hartford-Brainard Airport (14.3 miles)

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  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    63.2 °F
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