Brunswick, MO Weather & Growing Conditions
Today
91°F
Sunny
Sunny, with a high near 91. Heat index values as high as 97. South wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Sunny | 7 mph S | 3% |
| Tonight | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SE | 21% |
| Wednesday | 87°F | Showers And Thunderstorms Likely | 3 to 8 mph ESE | 61% |
| Wednesday Night | 67°F | Showers And Thunderstorms Likely | 5 to 8 mph NNE | 83% |
| Thursday | 86°F | Showers And Thunderstorms then Partly Sunny | 6 mph NE | 83% |
| Thursday Night | 66°F | Partly Cloudy | 2 to 6 mph ESE | 6% |
| Friday | 88°F | Mostly Sunny | 1 to 6 mph S | 14% |
| Friday Night | 69°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 2 to 6 mph S | 18% |
| Saturday | 91°F | Slight Chance Showers And Thunderstorms then Sunny | 2 to 10 mph SSW | 18% |
| Saturday Night | 72°F | Mostly Clear | 9 mph S | 5% |
| Sunday | 93°F | Sunny | 9 to 14 mph SSW | 3% |
| Sunday Night | 73°F | Mostly Clear | 8 to 12 mph SSW | 4% |
| Monday | 94°F | Mostly Sunny | 9 to 15 mph SSW | 4% |
| Monday Night | 74°F | Mostly Clear | 9 to 13 mph SSW | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brunswick, MO
Last spring frost
Apr 10
First fall frost
Oct 29
Growing season
201 days
Hardiness zone
6a
Explore more for Brunswick, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Brunswick, Mo (2.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.