Mertz Reservoir Weather Forecast

    • 64
    • 94

    Mostly Cloudy

    • 61
    • 82

    Thunderstorms Likely

    • 61
    • 84

    Rain Showers

    • 65
    • 90

    Mostly Sunny

    • 65
    • 94

    Mostly Sunny

    • 66
    • 96

    Hot

    • 65
    • 96

    Slight Chance Thunderstorms

Today 22 Jul Central Laramie Range and Southwest Platte County

Partly sunny with a slight chance of Showers and Thunderstorms. Some Thunderstorms may produce gusty Winds. Hot. Near steady temperature in the upper 80s. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 22 Jul Central Laramie Range and Southwest Platte County

Mostly cloudy. A slight chance of Showers and Thunderstorms early. Some Thunderstorms may produce gusty Winds early. Lows in the lower 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mertz Reservoir Temperature Statistics

July Temperature

Camp Guernsey (28.6 miles)

  • Lowest 12 July, 2025

    49.5 °F

  • Average July

    75.3 °F

  • Highest 9 July, 2025

    102.7 °F

Climate (2020–Present)

Camp Guernsey (28.6 miles)

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  • Average Low 2020–2025

    35.2 °F

  • Average 2020–2025

    48.9 °F

  • Average High 2020–2025

    62.5 °F
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