Costich Lake Weather Forecast

    • 49
    • 70

    Chance Thunderstorms

    • 49
    • 82

    Chance Rain

    • 55
    • 88

    Mostly Sunny

    • 58
    • 93

    Sunny

    • 56
    • 91

    Partly Sunny

    • 50
    • 83

    Slight Chance Thunderstorms

    • 54
    • 88

    Mostly Sunny

Today 5 Jul Kootenai/Cabinet Region

Chance of Thunderstorms through the day. Rain Showers likely in the Morning, then chance of rain Showers in the afternoon. Patchy fog in the morning. Chance of precipitation 80 percent. Highs in the upper 60s to mid 70s.

Tonight 5 Jul Kootenai/Cabinet Region

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 40s to lower 50s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Costich Lake Temperature Statistics

July Temperature

Kalispell, Glacier Park International Airport (52.8 miles)

  • Lowest 1 July, 2025

    52 °F

  • Average July

    72 °F

  • Highest 1 July, 2025

    90 °F

Climate (2020–Present)

Kalispell, Glacier Park International Airport (52.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    45 °F

  • Average High 2020–2025

    56.8 °F
Get WillyWeather+ to remove ads