Bismarck Weather Forecast
- 23
- 56
Rain Showers
- 32
- 43
Mostly Sunny
- 26
- 56
Partly Sunny
- 29
- 46
Partly Sunny
- 39
- 47
Mostly Cloudy
- 44
- 61
Mostly Cloudy
Today 18 Dec St. Francois
Cloudy with Showers with isolated Thunderstorms in the Morning, then mostly sunny with scattered Showers in the afternoon. Highs in the mid 50s. Temperature falling into the upper 40s in the afternoon. Southwest Winds 10 to 15 Mph, becoming west in the afternoon. Gusts up to 35 Mph. Chance of rain 90 percent.
Tonight 18 Dec St. Francois
Mostly clear. Much cooler with Lows in the lower 20s. Northwest Winds 10 to 15 Mph with Gusts up to 35 Mph.
Bismarck Temperature Statistics
December Temperature
Farmington Airport (9.9 miles)
Lowest 14 December, 2025
6.8 °FAverage December
29.6 °FHighest 9 December, 2025
50 °F
Climate (2020–Present)
Farmington Airport (9.9 miles)
Average Low 2020–2025
46.8 °FAverage 2020–2025
56.6 °FAverage High 2020–2025
66.7 °F