Truman, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Truman, a city in Martin County, Minnesota.
Tonight
44°F
Light Rain
Rain and patchy fog. Cloudy, with a low around 44. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Truman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Light Rain | 15 to 20 mph NW | 91% |
| Wednesday | 47°F | Light Rain | 15 to 20 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.