Morning Sun, IA Weather & Growing Conditions
Today
87°F
Mostly Sunny
Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 5 to 10 mph SW | 12% |
| Tonight | 67°F | Chance Showers And Thunderstorms | 5 mph NE | 54% |
| Wednesday | 79°F | Showers And Thunderstorms Likely | 5 mph NE | 81% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 5 mph N | 75% |
| Thursday | 80°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph NE | 60% |
| Thursday Night | 62°F | Mostly Clear | 0 to 5 mph E | 7% |
| Friday | 83°F | Mostly Sunny | 0 to 5 mph SE | 5% |
| Friday Night | 66°F | Mostly Clear | 0 to 5 mph SE | 14% |
| Saturday | 86°F | Sunny | 5 mph S | 13% |
| Saturday Night | 71°F | Mostly Clear | 5 to 10 mph S | 10% |
| Sunday | 88°F | Sunny | 10 to 15 mph SW | 10% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 mph S | 24% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 24% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 28% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Morning Sun, IA
Last spring frost
Apr 26
First fall frost
Oct 10
Growing season
167 days
Hardiness zone
5b
Explore more for Morning Sun, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Columbus Junction, Ia (12.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.