Dexter, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dexter, a city in Mower County, Minnesota.
This Afternoon
61°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy, with a high near 61. Northeast wind around 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Dexter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Slight Chance Rain Showers | 9 mph NE | 24% |
| Tonight | 55°F | Slight Chance Rain Showers then Cloudy | 9 to 13 mph NE | 22% |
| Sunday | 66°F | Partly Sunny | 13 to 16 mph NE | 6% |
| Sunday Night | 49°F | Cloudy | 14 mph NE | 11% |
| Monday | 58°F | Chance Rain Showers | 10 to 14 mph NE | 46% |
| Monday Night | 45°F | Chance Rain Showers | 7 to 10 mph NE | 46% |
| Tuesday | 59°F | Mostly Sunny | 7 to 10 mph E | 6% |
| Tuesday Night | 43°F | Partly Cloudy | 7 mph E | 2% |
| Wednesday | 62°F | Sunny | 8 mph E | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 6 mph SE | 8% |
| Thursday | 65°F | Slight Chance Rain Showers | 7 mph SE | 20% |
| Thursday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 6 mph SE | 15% |
| Friday | 69°F | Partly Sunny | 3 to 7 mph SE | 13% |
| Friday Night | 55°F | Mostly Cloudy | 6 mph SE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Dexter (43.719, -92.702). Updated through the day.
Growing snapshot for Dexter
Last spring frost
May 6
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
4b
More local growing data for Dexter: nearby ZIP 55926 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
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Austin
Brownsdale
Elkton
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Lyle
Mapleview
Ostrander
Racine
Rose Creek
Sargeant
Taopi
Waltham
Climate data from the nearest NOAA station, Grand Meadow, Mn (7.6 mi from Dexter). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.