Cromwell, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cromwell, a city in Carlton County, Minnesota.
This Afternoon
57°F
Light Rain
Rain and patchy fog. Cloudy. High near 57, with temperatures falling to around 54 in the afternoon. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Cromwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Light Rain | 10 mph N | 76% |
| Tonight | 48°F | Rain | 10 mph N | 88% |
| Wednesday | 51°F | Rain | 10 mph N | 90% |
| Wednesday Night | 39°F | Light Rain | 10 to 15 mph N | 88% |
| Thursday | 43°F | Slight Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 17% |
| Thursday Night | 27°F | Mostly Cloudy | 0 to 5 mph NE | 0% |
| Friday | 42°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 24°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 48°F | Mostly Sunny | 0 to 5 mph SW | 2% |
| Saturday Night | 32°F | Partly Cloudy | 5 mph W | 12% |
| Sunday | 52°F | Mostly Sunny | 5 to 10 mph W | 8% |
| Sunday Night | 32°F | Partly Cloudy | 5 mph SW | 1% |
| Monday | 53°F | Mostly Sunny | 5 to 10 mph SW | 3% |
| Monday Night | 34°F | Partly Cloudy | 5 to 10 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Cromwell (46.679, -92.871). Updated through the day.
Growing snapshot for Cromwell
Last spring frost
May 31
First fall frost
Sep 18
Growing season
107 days
Hardiness zone
4a
More local growing data for Cromwell: nearby ZIP 55726 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Barnum
Big Lake
Carlton
Cloquet
Esko
Kettle River
Mahnomen
Mahtowa
Moose Lake
Scanlon
Sturgeon Lake
Wrenshall
Wright
Climate data from the nearest NOAA station, Wright 3 E, Mn (6.4 mi from Cromwell). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.