Harrisburg Weather Forecast

    • 70
    • 81

    Thunderstorms Likely

    • 71
    • 84

    Chance Thunderstorms

    • 71
    • 90

    Mostly Sunny

    • 65
    • 88

    Slight Chance Thunderstorms

    • 63
    • 81

    Chance Rain Showers

    • 63
    • 76

    Rain Showers Likely

Today 21 Jun Lewis

Mostly sunny. Highs Ranging from the upper 70s on the Hilltops to the lower 80s across the lower Elevations. Light southwest Winds.

Tonight 21 Jun Lewis

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers with a chance of Thunderstorms overnight. Some Thunderstorms may produce heavy rainfall overnight. Locally heavy rainfall possible overnight. Much warmer with Lows in the upper 60s. South Winds 10 Mph or Less, becoming southwest 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harrisburg Temperature Statistics

June Temperature

Fort Drum / Wheeler-Sack U. S. Army Airfield (15.5 miles)

  • Lowest 1 June, 2025

    46.2 °F

  • Average June

    66.2 °F

  • Highest 4 June, 2025

    86.9 °F

Climate (2020–Present)

Fort Drum / Wheeler-Sack U. S. Army Airfield (15.5 miles)

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  • Average Low 2020–2025

    39.7 °F

  • Average 2020–2025

    48.1 °F

  • Average High 2020–2025

    56.2 °F
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