Hamilton, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hamilton, a city in Caldwell County, Missouri.
Today
91°F
Mostly Sunny
Mostly sunny, with a high near 91. South wind around 5 mph.
7-day forecast for Hamilton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Mostly Sunny | 5 mph S | 12% |
| Tonight | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 mph E | 33% |
| 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 7 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) 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 Aug 4, 2026.