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
82°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny. High near 82, with temperatures falling to around 79 in the afternoon. West southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Sun Valley Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Chance Showers And Thunderstorms | 6 to 9 mph WSW | 39% |
| Tonight | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 8 mph N | 63% |
| Sunday | 66°F | Chance Rain Showers then Chance Showers And Thunderstorms | 10 mph NNE | 44% |
| Sunday Night | 58°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 12 mph NE | 61% |
| Monday | 59°F | Rain Showers Likely | 12 mph NE | 61% |
| Monday Night | 52°F | Chance Rain Showers | 9 mph NE | 48% |
| Tuesday | 58°F | Partly Sunny | 9 mph NE | 9% |
| Tuesday Night | 46°F | Partly Cloudy | 3 to 7 mph NE | 6% |
| Wednesday | 62°F | Mostly Sunny | 5 mph ENE | 2% |
| Wednesday Night | 51°F | Partly Cloudy | 3 mph E | 7% |
| Thursday | 65°F | Slight Chance Rain Showers | 3 mph ESE | 22% |
| Thursday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph ESE | 21% |
| Friday | 66°F | Slight Chance Rain Showers then Partly Sunny | 6 mph ESE | 21% |
| Friday Night | 57°F | Mostly Cloudy | 5 mph ESE | 12% |
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 Sep 19, 2026.