Bismarck Weather Forecast

    • 56
    • 74

    Mostly Cloudy

    • 56
    • 78

    Partly Sunny

    • 58
    • 79

    Mostly Sunny

    • 64
    • 80

    Mostly Cloudy

    • 64
    • 78

    Chance Rain Showers

    • 61
    • 77

    Chance Rain Showers

Today 26 Sep St. Francois

Partly sunny. Highs in the mid 70s. East Winds around 5 Mph.

Tonight 26 Sep St. Francois

Mostly cloudy. Lows in the upper 50s. East Winds around 5 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Bismarck Temperature Statistics

September Temperature

Farmington Airport (9.9 miles)

  • Lowest 23 September, 2026

    59 °F

  • Average September

    78.2 °F

  • Highest 18 September, 2026

    97 °F

Climate (2021–2026)

Farmington Airport (9.9 miles)

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

  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    67.4 °F
Get WillyWeather+ to remove ads