Grant Reservoir Weather Forecast

    • 52
    • 75

    Chance Rain Showers

    • 52
    • 75

    Slight Chance Thunderstorms

    • 49
    • 80

    Rain Showers

    • 53
    • 71

    Breezy

    • 47
    • 74

    Breezy

    • 51
    • 77

    Mostly Sunny

    • 52
    • 81

    Mostly Sunny

Today 1 Jun Prairie

Sunny. Highs in the upper 70s. South wind around 5 Mph.

Tonight 1 Jun Prairie

Partly cloudy this Evening, then mostly cloudy with a chance of Thunderstorms after midnight. Some Thunderstorms may produce gusty Winds and small hail after midnight. Lows in the lower 50s. East wind around 5 Mph. Chance of precipitation 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant Reservoir Temperature Statistics

June Temperature

Miles City, Frank Wiley Field Airport (32.3 miles)

  • Lowest

  • Average June

  • Highest

Climate (2019–Present)

Miles City, Frank Wiley Field Airport (32.3 miles)

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  • Average Low 2019–2024

    35.1 °F
  • Average 2019–2024

    46.8 °F
  • Average High 2019–2024

    58.7 °F
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