Fairfax, MO Weather & Growing Conditions
Tonight
44°F
Slight Chance Rain Showers then Cloudy
A slight chance of rain showers before 9pm. Cloudy, with a low around 44. Northwest wind 14 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Slight Chance Rain Showers then Cloudy | 14 to 20 mph NW | 17% |
| Wednesday | 56°F | Mostly Cloudy | 9 to 16 mph W | 8% |
| Wednesday Night | 40°F | Partly Cloudy | 8 mph W | 8% |
| Thursday | 55°F | Chance Rain Showers | 8 to 12 mph NW | 25% |
| Thursday Night | 39°F | Mostly Cloudy | 7 mph NNW | 5% |
| Friday | 55°F | Partly Sunny | 0 to 6 mph N | 2% |
| Friday Night | 36°F | Mostly Cloudy | 1 mph NNW | 0% |
| Saturday | 61°F | Mostly Sunny | 1 to 5 mph SW | 2% |
| Saturday Night | 38°F | Mostly Clear | 2 mph W | 6% |
| Sunday | 66°F | Sunny | 5 mph WSW | 3% |
| Sunday Night | 41°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 69°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 2 to 6 mph WNW | 0% |
| Tuesday | 68°F | Mostly Sunny | 2 to 6 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fairfax, MO
Last spring frost
Apr 19
First fall frost
Oct 15
Growing season
177 days
Hardiness zone
5b
Explore more for Fairfax, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Tarkio, Mo (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.