Monroe, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Monroe, a town in Mccook County, South Dakota.
Tonight
38°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 38, with temperatures rising to around 41 overnight. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Monroe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 38°F | Rain Showers Likely | 15 to 20 mph NW | 73% |
| Wednesday | 45°F | Rain Showers | 20 mph NW | 77% |
| Wednesday Night | 36°F | Rain Showers Likely then Mostly Cloudy | 15 mph NW | 59% |
| Thursday | 47°F | Partly Sunny | 10 to 15 mph NNW | 9% |
| Thursday Night | 31°F | Mostly Cloudy | 5 to 10 mph NNE | 0% |
| Friday | 46°F | Partly Sunny | 5 mph ESE | 0% |
| Friday Night | 31°F | Mostly Cloudy | 5 mph S | 0% |
| Saturday | 56°F | Mostly Sunny | 5 to 10 mph WSW | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph WNW | 4% |
| Sunday | 58°F | Sunny | 5 to 10 mph SW | 2% |
| Sunday Night | 38°F | Mostly Clear | 5 to 10 mph S | 1% |
| Monday | 60°F | Sunny | 10 to 15 mph W | 0% |
| Monday Night | 37°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Tuesday | 57°F | Mostly Sunny | 5 to 10 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Monroe (43.487, -97.217). Updated through the day.
Growing snapshot for Monroe
Last spring frost
Apr 30
First fall frost
Oct 7
Growing season
161 days
Hardiness zone
5a
More local growing data for Monroe: nearby ZIP 57047 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bridgewater, Sd (14.6 mi from Monroe). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.