Bismarck Weather Forecast

    • 69
    • 90

    Chance Thunderstorms

    • 71
    • 90

    Mostly Sunny

    • 73
    • 92

    Mostly Sunny

    • 74
    • 93

    Mostly Sunny

    • 74
    • 93

    Chance Rain Showers

    • 70
    • 89

    Chance Thunderstorms

    • 67
    • 84

    Rain Showers Likely

Today 7 Aug St. Francois

Mostly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the upper 80s. Southwest Winds around 5 Mph. Chance of rain 40 percent. Heat index Values up to 100.

Tonight 7 Aug St. Francois

Mostly cloudy. A chance of Showers and Thunderstorms this Evening, then a slight chance of Showers after midnight. Lows in the upper 60s. Southwest Winds around 5 Mph. Gusts up to 20 Mph this evening. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bismarck Temperature Statistics

August Temperature

Farmington Airport (9.9 miles)

  • Lowest 3 August, 2026

    62.1 °F

  • Average August

    73.3 °F

  • Highest 5 August, 2026

    88 °F

Climate (2021–2026)

Farmington Airport (9.9 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    67.3 °F
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