Olin, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Olin, a city in Jones County, Iowa.
Today
80°F
Patchy Fog then Chance Showers And Thunderstorms
Patchy fog and occasional showers and thunderstorms before 11am, then a chance of showers and thunderstorms between 11am and 1pm, then a chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 80. South wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Olin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Patchy Fog then Chance Showers And Thunderstorms | 5 to 10 mph S | 98% |
| Tonight | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph NW | 73% |
| Sunday | 68°F | Rain Showers Likely | 10 mph NE | 58% |
| Sunday Night | 55°F | Chance Rain Showers | 5 to 10 mph NE | 38% |
| Monday | 63°F | Chance Rain Showers | 10 mph NE | 50% |
| Monday Night | 50°F | Chance Rain Showers | 5 to 10 mph NE | 45% |
| Tuesday | 62°F | Chance Rain Showers then Partly Sunny | 5 to 10 mph NE | 33% |
| Tuesday Night | 46°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Wednesday | 66°F | Sunny | 5 mph NE | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 0 mph | 1% |
| Thursday | 67°F | Mostly Sunny | 0 to 5 mph NE | 7% |
| Thursday Night | 53°F | Partly Cloudy | 0 mph | 5% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph E | 5% |
| Friday Night | 52°F | Partly Cloudy | 0 mph | 5% |
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.