Mertz Reservoir Weather Forecast

    • 56
    • 71

    Thunderstorms Likely

    • 62
    • 88

    Chance Thunderstorms

    • 59
    • 89

    Mostly Sunny

    • 56
    • 86

    Chance Thunderstorms

    • 55
    • 81

    Breezy

    • 59
    • 85

    Mostly Sunny

Today 25 Jun Central Laramie Range and Southwest Platte County

Patchy fog this morning. Cloudy with numerous Showers with isolated Thunderstorms this Morning, then partly sunny with scattered Showers and Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds. Highs in the upper 60s. Southeast Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 25 Jun Central Laramie Range and Southwest Platte County

Mostly cloudy with numerous Showers and scattered Thunderstorms in the Evening, then partly cloudy after midnight. Some Thunderstorms may produce gusty Winds in the evening. Lows in the lower 50s. South Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening. Chance of rain 70 percent.

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Mertz Reservoir Temperature Statistics

June Temperature

Camp Guernsey (28.6 miles)

  • Lowest 15 June, 2026

    44.1 °F

  • Average June

    69.6 °F

  • Highest 6 June, 2026

    97.9 °F

Climate (2021–2026)

Camp Guernsey (28.6 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    63.8 °F
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