Hamilton, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hamilton, a city in Caldwell County, Missouri.
This Afternoon
68°F
Chance Showers And Thunderstorms
A chance of rain showers before 3pm, then a chance of showers and thunderstorms. Partly sunny. High near 68, with temperatures falling to around 58 in the afternoon. South southwest wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Hamilton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Showers And Thunderstorms | 12 mph SSW | 50% |
| Tonight | 45°F | Cloudy | 9 mph WNW | 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 | 40°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 | 38°F | Mostly Clear | 3 mph WSW | 0% |
| Monday | 67°F | Sunny | 3 to 7 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 3 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Hamilton (39.744, -94.002). Updated through the day.
Growing snapshot for Hamilton
Last spring frost
Apr 23
First fall frost
Oct 17
Growing season
175 days
Hardiness zone
6a
More local growing data for Hamilton: nearby ZIP 64644 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hamilton 2W, Mo (3.4 mi from Hamilton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.