Fairfax, MN Weather & Growing Conditions
Tonight
43°F
Rain
Rain and patchy fog. Cloudy. Low around 43, with temperatures rising to around 46 overnight. North northwest wind around 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Rain | 15 mph NNW | 96% |
| Wednesday | 50°F | Light Rain | 15 mph NW | 99% |
| Wednesday Night | 40°F | Rain | 15 mph NW | 100% |
| Thursday | 47°F | Chance Light Rain then Mostly Cloudy | 10 to 15 mph NNW | 37% |
| Thursday Night | 32°F | Mostly Cloudy | 5 to 10 mph N | 1% |
| Friday | 45°F | Mostly Sunny | 0 to 5 mph ENE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Saturday | 54°F | Mostly Sunny | 5 mph SW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 5 mph W | 2% |
| Sunday | 57°F | Sunny | 5 mph W | 4% |
| Sunday Night | 36°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 59°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 36°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 55°F | Mostly Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fairfax, MN
Last spring frost
Apr 29
First fall frost
Oct 7
Growing season
161 days
Hardiness zone
4b
Explore more for Fairfax, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, New Ulm 2 Se, Mn (18.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.