Farmington, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Farmington, a city in St. Francois County, Missouri.
Tonight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. South wind around 5 mph.
7-day forecast for Farmington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy | 5 mph S | 8% |
| Saturday | 97°F | Mostly Sunny | 5 to 8 mph SW | 3% |
| Saturday Night | 72°F | Partly Cloudy | 7 mph SW | 0% |
| Sunday | 94°F | Mostly Sunny | 7 mph W | 7% |
| Sunday Night | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 2 to 6 mph N | 43% |
| Monday | 83°F | Showers And Thunderstorms Likely | 3 to 8 mph N | 63% |
| Monday Night | 60°F | Showers And Thunderstorms Likely | 5 to 9 mph N | 63% |
| Tuesday | 73°F | Slight Chance Rain Showers then Partly Sunny | 7 to 10 mph N | 15% |
| Tuesday Night | 54°F | Partly Cloudy | 5 to 10 mph N | 9% |
| Wednesday | 75°F | Mostly Sunny | 5 to 8 mph N | 3% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 7 mph N | 2% |
| Thursday | 76°F | Mostly Sunny | 2 to 7 mph N | 3% |
| Thursday Night | 56°F | Partly Cloudy | 2 to 6 mph N | 4% |
| Friday | 76°F | Mostly Sunny | 2 to 7 mph N | 8% |
Forecast source: National Weather Service (api.weather.gov) for Farmington (37.782, -90.427). Updated through the day.
Growing snapshot for Farmington
Last spring frost
Apr 13
First fall frost
Oct 21
Growing season
191 days
Hardiness zone
6b
More local growing data for Farmington: nearby ZIP 63640 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Bismarck
Bonne Terre
Desloge
Doe Run
Frankclay
Goose Creek Lake
Iron Mountain Lake
Knob Lick
Lake Timberline
Leadington
Leadwood
Park Hills
Terre du Lac
Wortham
Climate data from the nearest NOAA station, Farmington, Mo (3.4 mi from Farmington). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.