Hamilton, MO Weather & Growing Conditions
Today
91°F
Mostly Sunny
Mostly sunny, with a high near 91. South southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Mostly Sunny | 3 mph SSW | 12% |
| Tonight | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 mph E | 32% |
| Wednesday | 82°F | Showers And Thunderstorms Likely | 6 mph NE | 68% |
| Wednesday Night | 64°F | Showers And Thunderstorms Likely | 5 mph NNE | 75% |
| Thursday | 83°F | Showers And Thunderstorms then Mostly Sunny | 3 mph ENE | 75% |
| Thursday Night | 65°F | Partly Cloudy | 2 mph SE | 11% |
| Friday | 87°F | Mostly Sunny | 1 to 5 mph S | 14% |
| Friday Night | 68°F | Mostly Clear | 3 mph S | 14% |
| Saturday | 91°F | Sunny | 2 to 6 mph S | 10% |
| Saturday Night | 73°F | Mostly Clear | 7 mph S | 6% |
| Sunday | 93°F | Sunny | 7 to 10 mph SSW | 3% |
| Sunday Night | 74°F | Mostly Clear | 9 mph S | 6% |
| Monday | 94°F | Mostly Sunny | 10 mph SSW | 6% |
| Monday Night | 75°F | Partly Cloudy | 9 mph SSW | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hamilton, MO
Last spring frost
Apr 23
First fall frost
Oct 17
Growing season
175 days
Hardiness zone
6a
Explore more for Hamilton, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Hamilton 2W, Mo (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.