St. Olaf, IA Weather & Growing Conditions
This Afternoon
68°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 68, with temperatures falling to around 64 in the afternoon. Southeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Showers And Thunderstorms | 10 mph SE | 75% |
| Tonight | 51°F | Showers And Thunderstorms | 8 to 12 mph S | 90% |
| Wednesday | 55°F | Chance Rain Showers | 8 to 15 mph SW | 51% |
| Wednesday Night | 44°F | Rain Showers | 14 mph SW | 84% |
| Thursday | 51°F | Rain Showers | 13 mph NW | 76% |
| Thursday Night | 38°F | Mostly Cloudy | 12 mph N | 14% |
| Friday | 50°F | Partly Sunny | 3 to 10 mph N | 3% |
| Friday Night | 30°F | Partly Cloudy | 2 mph N | 1% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph W | 1% |
| Saturday Night | 34°F | Mostly Clear | 3 mph W | 4% |
| Sunday | 59°F | Sunny | 3 to 8 mph W | 12% |
| Sunday Night | 35°F | Mostly Clear | 5 mph SW | 2% |
| Monday | 61°F | Sunny | 3 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 6 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Olaf, IA
Last spring frost
May 8
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
5a
Explore more for St. Olaf, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Elkader 6 Ssw, Ia (10.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.