Oelwein, IA Weather & Growing Conditions
Tonight
49°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. Low around 49, with temperatures rising to around 53 overnight. South wind around 12 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Chance Rain Showers | 12 mph S | 32% |
| Wednesday | 53°F | Chance Rain Showers | 12 to 17 mph SW | 51% |
| Wednesday Night | 44°F | Rain Showers Likely | 13 to 16 mph SW | 64% |
| Thursday | 50°F | Rain Showers Likely | 13 mph NW | 74% |
| Thursday Night | 39°F | Mostly Cloudy | 13 mph N | 14% |
| Friday | 48°F | Partly Sunny | 5 to 12 mph N | 2% |
| Friday Night | 32°F | Partly Cloudy | 3 mph NW | 0% |
| Saturday | 51°F | Mostly Sunny | 1 to 6 mph W | 2% |
| Saturday Night | 35°F | Mostly Clear | 6 mph W | 4% |
| Sunday | 56°F | Sunny | 6 to 9 mph W | 10% |
| Sunday Night | 37°F | Mostly Clear | 7 mph SW | 2% |
| Monday | 59°F | Sunny | 7 to 13 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 8 mph W | 0% |
| Tuesday | 59°F | Sunny | 8 mph NW | 1% |
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 Nov 4, 2026.