Bismarck, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bismarck, a city in St. Francois County, Missouri.
This Afternoon
70°F
Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 70, with temperatures falling to around 64 in the afternoon. South wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.
7-day forecast for Bismarck
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Rain | 15 mph S | 86% |
| Tonight | 48°F | Light Rain | 6 to 15 mph SW | 81% |
| Wednesday | 64°F | Partly Sunny | 6 to 9 mph W | 1% |
| Wednesday Night | 38°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 67°F | Sunny | 3 to 7 mph W | 2% |
| Thursday Night | 40°F | Mostly Cloudy | 3 mph NW | 11% |
| Friday | 58°F | Partly Sunny | 3 to 8 mph NW | 2% |
| Friday Night | 36°F | Mostly Cloudy | 0 to 5 mph N | 2% |
| Saturday | 57°F | Partly Sunny | 0 to 3 mph NW | 0% |
| Saturday Night | 32°F | Partly Cloudy | 2 mph NW | 2% |
| Sunday | 63°F | Sunny | 0 to 6 mph W | 6% |
| Sunday Night | 33°F | Mostly Clear | 3 mph W | 5% |
| Monday | 67°F | Sunny | 1 to 6 mph SW | 1% |
| Monday Night | 37°F | Mostly Clear | 5 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Bismarck (37.767, -90.623). Updated through the day.
Growing snapshot for Bismarck
Last spring frost
Apr 13
First fall frost
Oct 21
Growing season
191 days
Hardiness zone
6b
More local growing data for Bismarck: nearby ZIP 63624 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Bonne Terre
Desloge
Doe Run
Farmington
Frankclay
Goose Creek Lake
Iron Mountain Lake
Knob Lick
Lake Timberline
Leadington
Leadwood
Park Hills
Terre du Lac
Wortham
Climate data from the nearest NOAA station, Farmington, Mo (12.5 mi from Bismarck). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.