Lewiston, MN Weather & Growing Conditions
Tonight
56°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 56. East wind 12 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Showers And Thunderstorms | 12 to 15 mph E | 96% |
| Saturday | 63°F | Showers And Thunderstorms | 10 mph E | 85% |
| Saturday Night | 54°F | Slight Chance Showers And Thunderstorms then Cloudy | 8 to 12 mph NE | 22% |
| Sunday | 65°F | Partly Sunny | 13 mph NE | 9% |
| Sunday Night | 49°F | Mostly Cloudy | 10 mph NE | 6% |
| Monday | 60°F | Mostly Cloudy then Chance Rain Showers | 10 mph NE | 32% |
| Monday Night | 45°F | Chance Rain Showers | 8 mph NE | 32% |
| Tuesday | 60°F | Partly Sunny | 8 mph E | 11% |
| Tuesday Night | 43°F | Partly Cloudy | 5 mph E | 4% |
| Wednesday | 63°F | Sunny | 5 mph E | 1% |
| Wednesday Night | 48°F | Partly Cloudy | 3 mph SE | 4% |
| Thursday | 66°F | Partly Sunny | 3 mph S | 9% |
| Thursday Night | 50°F | Partly Cloudy | 2 mph S | 8% |
| Friday | 69°F | Mostly Sunny | 5 mph E | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lewiston, MN
Last spring frost
May 8
First fall frost
Oct 3
Growing season
147 days
Hardiness zone
4b
Explore more for Lewiston, MN: full frost dates · planting calendar · Minnesota frost dates
Climate data from the nearest NOAA station, Rushford, Mn (10.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.