Mertz Reservoir Weather Forecast

    • 46
    • 68

    Rain Showers

    • 47
    • 69

    Partly Sunny

    • 41
    • 65

    Rain Showers

    • 50
    • 74

    Mostly Sunny

    • 51
    • 86

    Mostly Sunny

    • 52
    • 80

    Partly Sunny

    • 55
    • 86

    Partly Sunny

Today 7 May Central Laramie Range and Southwest Platte County

Partly sunny with a chance of Showers and Thunderstorms. Breezy and not as cool. Near steady temperature in the lower 60s. Northwest Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of rain 40 percent.

Tonight 7 May Central Laramie Range and Southwest Platte County

Mostly cloudy. Showers likely with a slight chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows in the lower 40s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph, becoming west 5 to 10 Mph after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

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Mertz Reservoir Temperature Statistics

May Temperature

Camp Guernsey (28.6 miles)

  • Lowest 2 May, 2026

    30.4 °F

  • Average May

    53.3 °F

  • Highest 2 May, 2026

    77.7 °F

Climate (2021–Present)

Camp Guernsey (28.6 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    63.7 °F
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