Olin, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Olin, a city in Jones County, Iowa.
This Afternoon
68°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 68, with temperatures falling to around 64 in the afternoon. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
7-day forecast for Olin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Showers And Thunderstorms | 15 mph S | 85% |
| Tonight | 50°F | Showers And Thunderstorms Likely | 10 to 15 mph S | 67% |
| Wednesday | 54°F | Chance Rain Showers | 15 mph SW | 41% |
| Wednesday Night | 44°F | Slight Chance Rain Showers | 5 to 15 mph SW | 24% |
| Thursday | 53°F | Rain Showers Likely | 5 mph W | 60% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph N | 22% |
| Friday | 51°F | Partly Sunny | 0 to 5 mph N | 7% |
| Friday Night | 33°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 53°F | Mostly Sunny | 0 mph | 1% |
| Saturday Night | 35°F | Mostly Clear | 0 mph | 5% |
| Sunday | 58°F | Sunny | 0 to 5 mph NW | 10% |
| Sunday Night | 36°F | Mostly Clear | 0 mph | 2% |
| Monday | 62°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 0 to 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Olin (41.997, -91.141). Updated through the day.
Growing snapshot for Olin
Last spring frost
Apr 27
First fall frost
Oct 13
Growing season
170 days
Hardiness zone
5a
More local growing data for Olin: nearby ZIP 52320 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Anamosa
Cascade
Center Junction
Martelle
Monticello
Morley
Onslow
Oxford Junction
Stone City
Wyoming
Climate data from the nearest NOAA station, Anamosa 3 Ssw, Ia (9.6 mi from Olin). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.