Collinsville Weather Forecast

    • 45
    • 72

    Areas Fog

    • 48
    • 74

    Increasing Clouds

    • 55
    • 76

    Mostly Cloudy

    • 61
    • 77

    Rain Showers

    • 47
    • 73

    Chance Rain Showers

    • 45
    • 68

    Mostly Sunny

    • 52
    • 75

    Partly Sunny

Today 6 Sep Lewis

Partly sunny. Near steady Temperatures Ranging from the mid 60s on the Hilltops to around 70 across the lower Elevations. North Winds 5 to 10 Mph.

Tonight 6 Sep Lewis

Mainly clear. Lows in the upper 40s. North Winds 10 Mph or less.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Collinsville Temperature Statistics

September Temperature

Griffiss Air Force Base / Rome (25.5 miles)

  • Lowest 4 September, 2026

    57.9 °F

  • Average September

    68.9 °F

  • Highest 3 September, 2026

    82 °F

Climate (2021–2026)

Griffiss Air Force Base / Rome (25.5 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    57.6 °F
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