Harman US

Archer, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Archer, a city in O'brien County, Iowa.

Overnight
62°F
Areas Of Fog
Areas of fog before 5am, then areas of fog and a slight chance of showers and thunderstorms. Cloudy. Low around 62, with temperatures rising to around 66 overnight. North northeast wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast for Archer

WhenTempForecastWindPrecip
Overnight 62°F Areas Of Fog 5 mph NNE 15%
Saturday 69°F Areas Of Fog then Cloudy 5 to 10 mph N 32%
Saturday Night 55°F Cloudy 10 to 15 mph NNE 9%
Sunday 65°F Mostly Cloudy 15 mph NE 11%
Sunday Night 52°F Chance Rain Showers 10 to 15 mph ENE 52%
Monday 59°F Rain Showers Likely 10 mph ENE 56%
Monday Night 46°F Chance Rain Showers then Mostly Cloudy 5 to 10 mph ENE 36%
Tuesday 61°F Partly Sunny 5 to 10 mph E 4%
Tuesday Night 45°F Partly Cloudy 5 mph ESE 0%
Wednesday 65°F Mostly Sunny 5 to 10 mph SE 6%
Wednesday Night 50°F Mostly Cloudy then Chance Rain Showers 5 mph SE 30%
Thursday 67°F Chance Rain Showers 5 mph SSE 30%
Thursday Night 52°F Mostly Cloudy 5 mph SSE 14%
Friday 68°F Partly Sunny 5 to 10 mph SE 14%

Forecast source: National Weather Service (api.weather.gov) for Archer (43.115, -95.744). Updated through the day.

Growing snapshot for Archer

Last spring frost
Apr 29
First fall frost
Oct 10
Growing season
163 days
Hardiness zone
5a

More local growing data for Archer: nearby ZIP 51231 weather · frost dates · planting calendar · Iowa frost dates

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Climate data from the nearest NOAA station, Primghar, Ia (5.8 mi from Archer). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.