Oelwein, IA Weather & Growing Conditions
Tonight
64°F
Chance Showers And Thunderstorms then Showers And Thunderstorms
A chance of showers and thunderstorms before midnight, then showers and thunderstorms. Cloudy, with a low around 64. Southeast wind 12 to 16 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 12 to 16 mph SE | 83% |
| Saturday | 77°F | Showers And Thunderstorms Likely | 12 mph S | 66% |
| Saturday Night | 59°F | Chance Showers And Thunderstorms | 10 to 14 mph N | 54% |
| Sunday | 65°F | Chance Rain Showers | 14 to 17 mph NE | 47% |
| Sunday Night | 53°F | Slight Chance Rain Showers | 16 mph NE | 18% |
| Monday | 61°F | Chance Rain Showers | 16 mph NE | 48% |
| Monday Night | 48°F | Chance Rain Showers | 10 to 15 mph NE | 48% |
| Tuesday | 59°F | Chance Rain Showers | 9 to 13 mph NE | 34% |
| Tuesday Night | 46°F | Partly Cloudy | 5 to 8 mph NE | 4% |
| Wednesday | 64°F | Mostly Sunny | 7 mph E | 0% |
| Wednesday Night | 50°F | Partly Cloudy | 5 mph E | 2% |
| Thursday | 66°F | Mostly Sunny | 5 mph E | 10% |
| Thursday Night | 52°F | Partly Cloudy | 3 mph E | 6% |
| Friday | 67°F | Mostly Sunny | 6 mph E | 5% |
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 Sep 19, 2026.