Brimson, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brimson, a village in Harrison County, Missouri.
Tonight
72°F
Partly Cloudy
Partly cloudy, with a low around 72. South wind around 7 mph.
7-day forecast for Brimson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Partly Cloudy | 7 mph S | 7% |
| Saturday | 87°F | Partly Sunny | 6 to 9 mph SW | 13% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph NNW | 72% |
| Sunday | 75°F | Chance Showers And Thunderstorms | 3 to 8 mph N | 49% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 53% |
| Monday | 65°F | Chance Rain Showers | 9 mph NE | 53% |
| Monday Night | 54°F | Chance Rain Showers | 8 mph NNE | 42% |
| Tuesday | 62°F | Mostly Cloudy | 8 mph NE | 10% |
| Tuesday Night | 49°F | Mostly Cloudy | 2 to 7 mph NE | 4% |
| Wednesday | 67°F | Mostly Sunny | 6 mph ENE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph ENE | 4% |
| Thursday | 68°F | Partly Sunny | 1 to 5 mph E | 13% |
| Thursday Night | 55°F | Mostly Cloudy | 2 mph ENE | 14% |
| Friday | 69°F | Slight Chance Rain Showers | 2 to 6 mph E | 16% |
Forecast source: National Weather Service (api.weather.gov) for Brimson (40.145, -93.738). Updated through the day.
Growing snapshot for Brimson
Last spring frost
Apr 20
First fall frost
Oct 16
Growing season
177 days
Hardiness zone
6a
More local growing data for Brimson: nearby ZIP 64642 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Spickard 7 W, Mo (8.3 mi from Brimson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.