Union Lake Weather Forecast

    • 58
    • 77

    Chance Thunderstorms

    • 57
    • 80

    Mostly Sunny

    • 56
    • 75

    Mostly Cloudy

    • 55
    • 69

    Chance Rain Showers

    • 55
    • 70

    Chance Rain Showers

    • 55
    • 70

    Chance Rain Showers

Today 15 Sep East Polk

Partly sunny with a chance of Showers. A slight chance of Thunderstorms late this Morning, then a chance of Thunderstorms this afternoon. Highs 75 to 80. Breezy. South Winds 15 to 25 Mph. Chance of rain 30 percent.

Tonight 15 Sep East Polk

Mostly clear. Lows 55 to 60. South Winds 5 to 15 Mph. Gusts up to 25 Mph in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Lake Temperature Statistics

September Temperature

Fosston, Fosston Municipal Airport (13.7 miles)

  • Lowest 7 September, 2025

    32 °F

  • Average September

    56.5 °F

  • Highest 12 September, 2025

    77 °F

Climate (2020–Present)

Fosston, Fosston Municipal Airport (13.7 miles)

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

  • Average Low 2020–2025

    30.2 °F

  • Average 2020–2025

    40 °F

  • Average High 2020–2025

    49.4 °F
Get WillyWeather+ to remove ads