Osceola, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Osceola, a city in St. Clair County, Missouri.
Tonight
50°F
Slight Chance Drizzle
A slight chance of drizzle before 5am. Cloudy, with a low around 50. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
7-day forecast for Osceola
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Slight Chance Drizzle | 10 mph W | 17% |
| Wednesday | 61°F | Partly Sunny | 7 to 12 mph W | 6% |
| Wednesday Night | 40°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 62°F | Sunny | 3 to 8 mph W | 2% |
| Thursday Night | 43°F | Mostly Cloudy | 2 to 6 mph NW | 2% |
| Friday | 58°F | Partly Sunny | 3 to 8 mph N | 1% |
| Friday Night | 37°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 57°F | Mostly Sunny | 0 to 3 mph N | 0% |
| Saturday Night | 36°F | Mostly Clear | 1 mph N | 0% |
| Sunday | 63°F | Sunny | 0 to 3 mph NW | 0% |
| Sunday Night | 38°F | Clear | 1 mph NW | 0% |
| Monday | 68°F | Sunny | 1 to 7 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 3 mph SW | 0% |
| Tuesday | 71°F | Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Osceola (38.046, -93.694). Updated through the day.
Growing snapshot for Osceola
Last spring frost
Apr 16
First fall frost
Oct 24
Growing season
189 days
Hardiness zone
6b
More local growing data for Osceola: nearby ZIP 64776 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Osceola, Mo (1.6 mi from Osceola). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.