Peterson Reservoir Weather Forecast

    • 65
    • 86

    Thunderstorms Likely

    • 63
    • 84

    Partly Sunny

    • 65
    • 86

    Partly Sunny

    • 69
    • 96

    Slight Chance Thunderstorms

    • 69
    • 96

    Mostly Sunny

    • 66
    • 95

    Chance Thunderstorms

Today 23 Jul Keya Paha

Partly sunny with a chance of Showers and a slight chance of Thunderstorms in the Morning, then mostly cloudy with Showers and Thunderstorms likely in the afternoon. Highs in the mid 80s. Temperature falling into the in the upper 70s in the afternoon. Northwest Winds around 10 Mph. Chance of precipitation 70 percent.

Tonight 23 Jul Keya Paha

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Lows in the mid 60s. Northwest Winds up to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Peterson Reservoir Temperature Statistics

July Temperature

Ainsworth Regional Airport (39.8 miles)

  • Lowest 17 July, 2025

    52.2 °F
  • Average July

    73.5 °F
  • Highest 14 July, 2025

    96.8 °F

Climate (2020–Present)

Ainsworth Regional Airport (39.8 miles)

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  • Average Low 2020–2025

    37.4 °F
  • Average 2020–2025

    49.2 °F
  • Average High 2020–2025

    61.7 °F
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