Warrenton, MO Weather & Growing Conditions
Overnight
72°F
Mostly Clear
Mostly clear, with a low around 72. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Mostly Clear | 5 mph S | 4% |
| Saturday | 96°F | Partly Sunny | 6 mph SW | 2% |
| Saturday Night | 71°F | Partly Cloudy | 2 mph SW | 8% |
| Sunday | 89°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 mph NW | 47% |
| Sunday Night | 64°F | Showers And Thunderstorms | 5 mph N | 76% |
| Monday | 74°F | Showers And Thunderstorms | 6 mph NE | 76% |
| Monday Night | 57°F | Chance Rain Showers | 6 mph NE | 30% |
| Tuesday | 68°F | Slight Chance Rain Showers then Partly Sunny | 7 mph NE | 17% |
| Tuesday Night | 51°F | Mostly Cloudy | 2 to 6 mph N | 2% |
| Wednesday | 72°F | Mostly Sunny | 5 mph N | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph NE | 0% |
| Thursday | 74°F | Mostly Sunny | 3 mph NE | 3% |
| Thursday Night | 56°F | Mostly Cloudy | 2 mph NE | 6% |
| Friday | 75°F | Partly Sunny | 3 mph NE | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Warrenton, MO
Last spring frost
Apr 14
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
6b
Explore more for Warrenton, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Warrenton 1 N, Mo (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.