Old Monroe, MO Weather & Growing Conditions
Overnight
53°F
Slight Chance Drizzle
A slight chance of drizzle. Mostly cloudy, with a low around 53. Southwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Slight Chance Drizzle | 10 mph SW | 13% |
| Wednesday | 59°F | Slight Chance Drizzle then Mostly Cloudy | 8 to 14 mph W | 12% |
| Wednesday Night | 42°F | Partly Cloudy | 6 mph W | 1% |
| Thursday | 63°F | Sunny | 6 to 12 mph W | 0% |
| Thursday Night | 43°F | Mostly Cloudy | 6 mph NW | 4% |
| Friday | 56°F | Partly Sunny | 6 to 10 mph N | 3% |
| Friday Night | 33°F | Partly Cloudy | 1 to 5 mph N | 0% |
| Saturday | 55°F | Mostly Sunny | 3 mph N | 0% |
| Saturday Night | 32°F | Partly Cloudy | 1 mph NW | 0% |
| Sunday | 61°F | Sunny | 1 to 6 mph W | 1% |
| Sunday Night | 34°F | Clear | 1 mph W | 0% |
| Monday | 66°F | Sunny | 1 to 5 mph SW | 0% |
| Monday Night | 39°F | Clear | 3 mph SW | 0% |
| Tuesday | 68°F | Sunny | 3 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Old Monroe, MO
Last spring frost
Apr 20
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6b
Explore more for Old Monroe, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Elsberry 1 S, Mo (15 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.