Fort Chartres State Park Weather Forecast

    • 57
    • 79

    Thunderstorms Likely

    • 53
    • 70

    Slight Chance Rain Showers

    • 57
    • 73

    Mostly Cloudy

    • 59
    • 77

    Rain Showers

    • 60
    • 82

    Chance Thunderstorms

    • 63
    • 83

    Chance Rain Showers

Today 19 May Randolph

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Highs in the mid 80s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 19 May Randolph

Partly cloudy and cooler. Near steady temperature in the upper 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fort Chartres State Park Temperature Statistics

May Temperature

Sparta Community-Hunter Field Airport (25.5 miles)

  • Lowest 7 May, 2026

    42.8 °F

  • Average May

    49.1 °F

  • Highest 2 May, 2026

    55.4 °F

Climate (2021–Present)

Sparta Community-Hunter Field Airport (25.5 miles)

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  • Average Low 2021–2026

    48.7 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    67.6 °F
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