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
52°F
Light Rain
Rain and patchy fog before midnight, then rain and a slight chance of thunderstorms. Cloudy. Low around 52, with temperatures rising to around 55 overnight. Northeast wind 0 to 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for River Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Light Rain | 0 to 5 mph NE | 99% |
| Wednesday | 57°F | Rain | 5 to 10 mph SE | 84% |
| Wednesday Night | 44°F | Light Rain | 10 mph NNW | 92% |
| Thursday | 49°F | Light Rain Likely | 10 to 15 mph N | 61% |
| Thursday Night | 35°F | Mostly Cloudy | 5 to 10 mph NNE | 2% |
| Friday | 46°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph WSW | 1% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph WSW | 9% |
| Sunday | 55°F | Mostly Sunny | 5 to 10 mph WNW | 13% |
| Sunday Night | 36°F | Partly Cloudy | 0 to 5 mph SW | 2% |
| Monday | 57°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 mph WNW | 1% |
| Tuesday | 54°F | Sunny | 5 to 10 mph WNW | 1% |
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 Nov 4, 2026.