Monticello, MO Weather & Growing Conditions
Tonight
72°F
Mostly Cloudy
Mostly cloudy, with a low around 72. South wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Mostly Cloudy | 7 mph S | 10% |
| Saturday | 91°F | Partly Sunny | 7 mph SW | 7% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 3 mph W | 48% |
| Sunday | 79°F | Showers And Thunderstorms Likely | 3 to 8 mph N | 64% |
| Sunday Night | 62°F | Showers And Thunderstorms Likely | 8 mph NE | 70% |
| Monday | 67°F | Showers And Thunderstorms Likely | 9 mph NE | 70% |
| Monday Night | 56°F | Chance Rain Showers | 8 mph NE | 45% |
| Tuesday | 65°F | Slight Chance Rain Showers | 9 mph NE | 23% |
| Tuesday Night | 51°F | Mostly Cloudy | 3 to 7 mph N | 5% |
| Wednesday | 68°F | Mostly Sunny | 6 mph NE | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 3 mph NE | 1% |
| Thursday | 70°F | Partly Sunny | 5 mph NE | 5% |
| Thursday Night | 57°F | Partly Cloudy | 2 mph NE | 7% |
| Friday | 72°F | Mostly Sunny | 5 mph NE | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Monticello, MO
Last spring frost
Apr 11
First fall frost
Oct 23
Growing season
194 days
Hardiness zone
6a
Explore more for Monticello, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Canton L&D 20, Mo (10.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.