Sun Valley Lake, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sun Valley Lake, a community in Ringgold County, Iowa.
Today
51°F
Cloudy
Cloudy. High near 51, with temperatures falling to around 49 in the afternoon. West wind 13 to 16 mph, with gusts as high as 24 mph.
7-day forecast for Sun Valley Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Cloudy | 13 to 16 mph W | 7% |
| Tonight | 43°F | Mostly Cloudy | 12 mph W | 14% |
| Thursday | 52°F | Chance Rain Showers | 12 mph NW | 26% |
| Thursday Night | 41°F | Mostly Cloudy | 9 mph N | 8% |
| Friday | 50°F | Partly Sunny | 3 to 8 mph N | 5% |
| Friday Night | 31°F | Partly Cloudy | 2 mph ENE | 0% |
| Saturday | 52°F | Mostly Sunny | 3 mph SSW | 0% |
| Saturday Night | 36°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 59°F | Sunny | 6 mph W | 0% |
| Sunday Night | 38°F | Clear | 6 mph SW | 0% |
| Monday | 64°F | Sunny | 6 to 9 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 64°F | Sunny | 5 mph NNW | 0% |
| Tuesday Night | 44°F | Partly Cloudy | 3 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov) for Sun Valley Lake (40.849, -94.067). Updated through the day.
Growing snapshot for Sun Valley Lake
Last spring frost
Apr 23
First fall frost
Oct 17
Growing season
176 days
Hardiness zone
5b
More local growing data for Sun Valley Lake: nearby ZIP 50074 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Beaconsfield, Ia (4.4 mi from Sun Valley Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.