Hamilton, MO Weather & Growing Conditions
This Afternoon
69°F
Chance Rain Showers
A chance of rain showers. Partly sunny. High near 69, with temperatures falling to around 60 in the afternoon. Southwest wind around 12 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Chance Rain Showers | 12 mph SW | 28% |
| Tonight | 45°F | Cloudy | 9 mph W | 14% |
| Wednesday | 56°F | Mostly Cloudy | 7 to 10 mph W | 7% |
| Wednesday Night | 39°F | Partly Cloudy | 5 mph WSW | 2% |
| Thursday | 55°F | Partly Sunny then Slight Chance Rain Showers | 5 to 8 mph WNW | 19% |
| Thursday Night | 39°F | Mostly Cloudy | 5 mph NNW | 6% |
| Friday | 55°F | Partly Sunny | 2 to 6 mph N | 3% |
| Friday Night | 35°F | Mostly Cloudy | 1 mph N | 0% |
| Saturday | 57°F | Partly Sunny | 2 mph WNW | 2% |
| Saturday Night | 36°F | Partly Cloudy | 2 mph W | 6% |
| Sunday | 62°F | Sunny | 3 mph W | 3% |
| Sunday Night | 37°F | Mostly Clear | 2 mph WSW | 0% |
| Monday | 67°F | Sunny | 2 to 7 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 2 mph W | 0% |
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 Nov 4, 2026.