Olin, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Olin, a city in Jones County, Iowa.
This Afternoon
77°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 3pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. South wind 0 to 5 mph. Chance of precipitation is 60%.
7-day forecast for Olin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 61% |
| Tonight | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 5 mph NE | 85% |
| Sunday | 66°F | Rain Showers Likely | 5 to 10 mph NE | 58% |
| Sunday Night | 55°F | Chance Rain Showers | 5 to 10 mph NE | 38% |
| Monday | 62°F | Rain Showers Likely | 10 mph NE | 67% |
| Monday Night | 51°F | Rain Showers Likely | 5 to 10 mph NE | 67% |
| Tuesday | 61°F | Chance Rain Showers | 5 mph NE | 49% |
| Tuesday Night | 48°F | Mostly Cloudy | 0 to 5 mph NE | 7% |
| Wednesday | 64°F | Mostly Sunny | 5 mph NE | 2% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 66°F | Partly Sunny | 0 mph | 10% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 0 mph | 20% |
| Friday | 69°F | Partly Sunny | 0 mph | 14% |
| Friday Night | 55°F | Partly Cloudy | 0 mph | 11% |
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 Sep 19, 2026.