Lewiston, MN Weather & Growing Conditions
Today
75°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. High near 75, with temperatures falling to around 72 in the afternoon. West wind 7 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Chance Rain Showers | 7 to 12 mph W | 73% |
| Tonight | 57°F | Scattered Rain Showers then Mostly Cloudy | 7 mph NW | 34% |
| Wednesday | 75°F | Mostly Sunny | 5 mph NW | 1% |
| Wednesday Night | 55°F | Mostly Clear | 3 mph W | 0% |
| Thursday | 80°F | Sunny | 3 to 7 mph SW | 0% |
| Thursday Night | 60°F | Mostly Clear | 8 mph S | 1% |
| Friday | 82°F | Sunny | 7 to 13 mph SW | 9% |
| Friday Night | 63°F | Slight Chance Rain Showers | 8 to 12 mph SW | 17% |
| Saturday | 83°F | Slight Chance Rain Showers then Mostly Sunny | 9 mph SW | 17% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 9 mph W | 39% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 10 mph SW | 39% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 5 to 8 mph SE | 40% |
| Monday | 81°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 8 mph E | 40% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 7 mph N | 27% |
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 Aug 4, 2026.