Truman, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Truman, a city in Martin County, Minnesota.
Tonight
42°F
Rain
Rain and patchy fog. Cloudy. Low around 42, with temperatures rising to around 46 overnight. Northwest wind around 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Truman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Rain | 15 mph NW | 96% |
| Wednesday | 48°F | Light Rain | 15 mph WNW | 96% |
| Wednesday Night | 39°F | Light Rain | 15 mph NW | 89% |
| Thursday | 46°F | Chance Light Rain | 15 mph NNW | 52% |
| Thursday Night | 33°F | Mostly Cloudy | 5 to 10 mph N | 6% |
| Friday | 46°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 30°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Saturday | 54°F | Mostly Sunny | 5 to 10 mph SW | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 3% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 6% |
| Sunday Night | 36°F | Mostly Clear | 5 to 10 mph SSW | 1% |
| Monday | 60°F | Sunny | 10 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph WNW | 0% |
| Tuesday | 56°F | Mostly Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Truman (43.828, -94.437). Updated through the day.
Growing snapshot for Truman
Last spring frost
Apr 25
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
5a
More local growing data for Truman: nearby ZIP 56088 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Fairmont, Mn (12.5 mi from Truman). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.