Lewiston, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lewiston, a city in Winona County, Minnesota.
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 16 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
7-day forecast for Lewiston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Showers And Thunderstorms | 12 to 16 mph E | 98% |
| Saturday | 65°F | Showers And Thunderstorms | 10 mph E | 89% |
| Saturday Night | 54°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 45% |
| Sunday | 65°F | Partly Sunny | 13 mph NE | 10% |
| Sunday Night | 49°F | Mostly Cloudy | 10 mph NE | 6% |
| Monday | 60°F | Mostly Cloudy then Chance Rain Showers | 10 mph E | 31% |
| Monday Night | 45°F | Chance Rain Showers | 8 mph NE | 31% |
| Tuesday | 60°F | Partly Sunny | 8 mph E | 11% |
| Tuesday Night | 44°F | Partly Cloudy | 5 mph E | 4% |
| Wednesday | 64°F | Sunny | 6 mph E | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 3 mph SE | 5% |
| Thursday | 66°F | Mostly Sunny | 3 mph S | 9% |
| Thursday Night | 51°F | Partly Cloudy | 2 mph S | 8% |
| Friday | 69°F | Mostly Sunny | 5 mph E | 4% |
Forecast source: National Weather Service (api.weather.gov) for Lewiston (43.982, -91.869). Updated through the day.
Growing snapshot for Lewiston
Last spring frost
May 8
First fall frost
Oct 3
Growing season
147 days
Hardiness zone
4b
More local growing data for Lewiston: nearby ZIP 55952 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Altura
Elba
Goodview
Homer
Minneiska
Minnesota City
Pickwick
Rollingstone
St. Charles
Stockton
Utica
Winona
Climate data from the nearest NOAA station, Rushford, Mn (10.7 mi from Lewiston). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.