St Johns Weather Forecast

    • 64
    • 81

    Chance Thunderstorms

    • 64
    • 79

    Rain Showers Likely

    • 59
    • 80

    Partly Sunny

    • 57
    • 81

    Mostly Sunny

    • 62
    • 85

    Partly Sunny

    • 56
    • 83

    Slight Chance Thunderstorms

Today 18 Aug Clinton

Mostly sunny. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 18 Aug Clinton

Partly cloudy in the Evening, then mostly cloudy with a 50 percent chance of Showers and Thunderstorms overnight. Lows in the lower 60s. Southeast Winds 5 to 10 Mph with Gusts to around 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Johns Temperature Statistics

August Temperature

Capital Region International Airport (15.5 miles)

  • Lowest 2 August, 2025

    51.7 °F

  • Average August

    74.8 °F

  • Highest 10 August, 2025

    93.7 °F

Climate (2020–Present)

Capital Region International Airport (15.5 miles)

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  • Average Low 2020–2025

    42.1 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    60 °F
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