Farmington, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Farmington, a city in St. Francois County, Missouri.
Tonight
53°F
Light Rain
Rain before 2am, then a slight chance of drizzle between 2am and 4am. Cloudy, with a low around 53. Southwest wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
7-day forecast for Farmington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Light Rain | 6 to 13 mph SW | 77% |
| Wednesday | 66°F | Partly Sunny | 7 to 10 mph W | 1% |
| Wednesday Night | 37°F | Mostly Clear | 6 mph SW | 0% |
| Thursday | 69°F | Sunny | 3 to 8 mph W | 1% |
| Thursday Night | 39°F | Mostly Cloudy | 5 mph NW | 10% |
| Friday | 59°F | Partly Sunny | 5 to 9 mph NW | 2% |
| Friday Night | 34°F | Mostly Cloudy | 1 to 6 mph N | 1% |
| Saturday | 58°F | Partly Sunny | 1 to 5 mph N | 0% |
| Saturday Night | 31°F | Partly Cloudy | 2 mph NW | 2% |
| Sunday | 64°F | Sunny | 1 to 6 mph W | 6% |
| Sunday Night | 32°F | Mostly Clear | 1 to 5 mph NW | 5% |
| Monday | 68°F | Sunny | 1 to 7 mph W | 1% |
| Monday Night | 36°F | Mostly Clear | 2 to 6 mph SW | 1% |
| Tuesday | 71°F | Sunny | 2 to 6 mph SW | 0% |
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
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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 Nov 4, 2026.