Calhoun, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calhoun, a city in Henry County, Missouri.
This Afternoon
72°F
Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Partly sunny. High near 72, with temperatures falling to around 63 in the afternoon. South southwest wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Calhoun
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Slight Chance Rain Showers | 13 to 18 mph SSW | 20% |
| Tonight | 48°F | Mostly Cloudy | 8 to 12 mph W | 20% |
| Wednesday | 63°F | Partly Sunny | 6 to 13 mph W | 4% |
| Wednesday Night | 43°F | Mostly Clear | 3 mph WSW | 0% |
| Thursday | 63°F | Mostly Sunny then Chance Rain Showers | 2 to 7 mph W | 45% |
| Thursday Night | 42°F | Slight Chance Rain Showers then Mostly Cloudy | 3 mph NW | 15% |
| Friday | 59°F | Partly Sunny | 3 to 7 mph NNW | 0% |
| Friday Night | 40°F | Mostly Cloudy | 2 mph N | 1% |
| Saturday | 60°F | Partly Sunny | 0 to 3 mph NW | 2% |
| Saturday Night | 39°F | Partly Cloudy | 2 mph WNW | 4% |
| Sunday | 61°F | Sunny | 2 to 7 mph WNW | 7% |
| Sunday Night | 38°F | Mostly Clear | 2 mph W | 2% |
| Monday | 66°F | Sunny | 1 to 6 mph SW | 4% |
| Monday Night | 42°F | Mostly Clear | 1 mph WSW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Calhoun (38.468, -93.624). Updated through the day.
Growing snapshot for Calhoun
Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
191 days
Hardiness zone
6b
More local growing data for Calhoun: nearby ZIP 65323 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Windsor, Mo (7.2 mi from Calhoun). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.