Kalispell Weather Forecast

    • 45
    • 66

    Rain

    • 44
    • 55

    Rain

    • 42
    • 59

    Rain Likely

    • 42
    • 63

    Chance Rain Showers

    • 46
    • 71

    Chance Rain

    • 45
    • 69

    Rain Showers Likely

    • 46
    • 74

    Partly Sunny

Today 30 May Flathead/Mission Valleys

Cloudy. Areas of rain until late Afternoon, then chance of rain Showers and a slight chance of Thunderstorms late in the afternoon. Chance of precipitation 50 percent. Cooler. Highs in the 60s.

Tonight 30 May Flathead/Mission Valleys

Rain Showers likely and a slight chance of Thunderstorms early in the Evening, then rain likely in the late evening and overnight. Chance of precipitation 80 percent. Some Thunderstorms may produce heavy rainfall. Lows in the 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Kalispell Temperature Statistics

May Temperature

Kalispell, Glacier Park International Airport (7.5 miles)

  • Lowest 6 May, 2026

    29.6 °F

  • Average May

    53.9 °F

  • Highest 28 May, 2026

    88 °F

Climate (2021–Present)

Kalispell, Glacier Park International Airport (7.5 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    57.2 °F
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