Upper Harrison Lake Weather Forecast

    • 64
    • 90

    Chance Thunderstorms

    • 59
    • 88

    Rain Showers

    • 60
    • 86

    Chance Thunderstorms

    • 65
    • 94

    Mostly Sunny

    • 69
    • 101

    Hot

    • 67
    • 101

    Chance Thunderstorms

Today 21 Jul Garden

Partly sunny in the morning then clearing. Highs in the upper 80s. East Winds 10 to 15 Mph.

Tonight 21 Jul Garden

Mostly cloudy. A chance of Showers and Thunderstorms after midnight. Lows in the mid 60s. Southeast Winds 10 to 20 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Harrison Lake Temperature Statistics

July Temperature

Alliance, Alliance Municipal Airport (25.5 miles)

  • Lowest 10 July, 2026

    50.6 °F

  • Average July

    76.6 °F

  • Highest 6 July, 2026

    99.6 °F

Climate (2021–2026)

Alliance, Alliance Municipal Airport (25.5 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    49.3 °F

  • Average High 2021–2026

    64.8 °F
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