South St. Paul, MN Weather & Growing Conditions
Tonight
57°F
Patchy Fog
Patchy fog and showers and thunderstorms. Cloudy, with a low around 57. East southeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Patchy Fog | 10 to 15 mph ESE | 78% |
| Saturday | 65°F | Chance Rain Showers then Cloudy | 10 mph ENE | 40% |
| Saturday Night | 55°F | Mostly Cloudy | 5 to 10 mph NNE | 14% |
| Sunday | 70°F | Partly Sunny | 10 mph NE | 2% |
| Sunday Night | 50°F | Mostly Cloudy | 5 to 10 mph ENE | 2% |
| Monday | 66°F | Mostly Cloudy | 5 to 10 mph ENE | 8% |
| Monday Night | 46°F | Mostly Cloudy | 5 mph ENE | 7% |
| Tuesday | 66°F | Mostly Sunny | 5 to 10 mph E | 3% |
| Tuesday Night | 46°F | Partly Cloudy | 0 to 5 mph ESE | 1% |
| Wednesday | 68°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph SE | 9% |
| Thursday | 71°F | Mostly Sunny | 0 to 5 mph SSE | 13% |
| Thursday Night | 53°F | Partly Cloudy | 0 to 5 mph SSE | 9% |
| Friday | 73°F | Mostly Sunny | 0 to 5 mph SE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for South St. Paul, MN
Last spring frost
Apr 24
First fall frost
Oct 16
Growing season
174 days
Hardiness zone
5a
Explore more for South St. Paul, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, St Paul Downtown Ap, Mn (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.