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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

WhenTempForecastWindPrecip
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

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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.