Gibson Reservoir Weather Forecast

    • 48
    • 57

    Rain Showers

    • 45
    • 65

    Rain Showers Likely

    • 47
    • 72

    Chance Rain Showers

    • 50
    • 80

    Sunny

    • 50
    • 81

    Mostly Sunny

    • 51
    • 82

    Partly Sunny

    • 52
    • 80

    Partly Sunny

Today 21 Jul Southern Rocky Mountain Front

Cooler. Rain Showers likely late in the Morning, then rain Showers and chance of Thunderstorms in the afternoon. Highs 50 to 60. East Winds 5 to 10 Mph. Chance of precipitation near 100 percent.

Tonight 21 Jul Southern Rocky Mountain Front

Rain Showers and chance of Thunderstorms in the Evening, then chance of rain Showers and slight chance of Thunderstorms after midnight. Lows 45 to 50. East Winds 5 to 10 Mph shifting to the south after midnight. Chance of precipitation near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gibson Reservoir Temperature Statistics

July Temperature

Great Falls, Great Falls International Airport (66.5 miles)

  • Lowest 11 July, 2025

    42.7 °F

  • Average July

    69.9 °F

  • Highest 8 July, 2025

    97.6 °F

Climate (2020–Present)

Great Falls, Great Falls International Airport (66.5 miles)

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  • Average Low 2020–2025

    33.9 °F

  • Average 2020–2025

    46.4 °F

  • Average High 2020–2025

    58.3 °F
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