Oelwein, IA Weather & Growing Conditions
Today
77°F
Scattered Rain Showers
Scattered rain showers before 2pm, then scattered showers and thunderstorms between 2pm and 4pm, then scattered showers and thunderstorms. Mostly cloudy. High near 77, with temperatures falling to around 73 in the afternoon. West wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Scattered Rain Showers | 9 mph W | 54% |
| Tonight | 61°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 67% |
| Wednesday | 73°F | Chance Showers And Thunderstorms then Partly Sunny | 6 mph N | 28% |
| Wednesday Night | 55°F | Mostly Clear | 3 mph N | 10% |
| Thursday | 78°F | Sunny | 3 mph E | 2% |
| Thursday Night | 60°F | Mostly Clear | 3 mph SE | 0% |
| Friday | 81°F | Sunny | 3 to 9 mph S | 5% |
| Friday Night | 65°F | Mostly Clear | 8 mph S | 11% |
| Saturday | 83°F | Sunny | 9 mph S | 11% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 9 to 13 mph S | 27% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 12 mph S | 27% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 10 mph S | 39% |
| Monday | 83°F | Chance Showers And Thunderstorms | 12 mph S | 39% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 13 mph E | 37% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oelwein, IA
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
163 days
Hardiness zone
5a
Explore more for Oelwein, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Oelwein 2 S, Ia (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.