River Falls, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for River Falls, a city in Pierce County, Wisconsin.
Tonight
54°F
Patchy Fog
Rain showers and patchy fog before 10pm, then patchy fog and showers and thunderstorms likely. Cloudy, with a low around 54. East southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for River Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Patchy Fog | 15 mph ESE | 86% |
| Saturday | 64°F | Chance Rain Showers then Cloudy | 10 mph ENE | 50% |
| Saturday Night | 52°F | Slight Chance Drizzle then Mostly Cloudy | 5 to 10 mph NE | 15% |
| Sunday | 69°F | Partly Sunny | 10 mph NE | 2% |
| Sunday Night | 46°F | Mostly Cloudy | 5 to 10 mph ENE | 2% |
| Monday | 64°F | Mostly Cloudy | 5 to 10 mph E | 7% |
| Monday Night | 42°F | Mostly Cloudy | 5 mph E | 7% |
| Tuesday | 65°F | Mostly Sunny | 5 to 10 mph E | 3% |
| Tuesday Night | 42°F | Partly Cloudy | 0 to 5 mph ESE | 1% |
| Wednesday | 67°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 47°F | Partly Cloudy | 0 to 5 mph SE | 8% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph SSE | 12% |
| Thursday Night | 49°F | Partly Cloudy | 0 to 5 mph SSE | 10% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph SE | 5% |
Forecast source: National Weather Service (api.weather.gov) for River Falls (44.860, -92.625). Updated through the day.
Growing snapshot for River Falls
Last spring frost
May 11
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
4b
More local growing data for River Falls: nearby ZIP 54022 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, River Falls, Wi (0.5 mi from River Falls). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.