Harman US

Atlantic, IA Weather & Growing Conditions

This Afternoon
61°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 61, with temperatures falling to around 55 in the afternoon. North northwest wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 61°F Showers And Thunderstorms 17 mph NNW 87%
Tonight 42°F Rain Showers Likely 12 to 16 mph NW 74%
Wednesday 50°F Slight Chance Rain Showers 13 to 16 mph WNW 21%
Wednesday Night 40°F Mostly Cloudy then Chance Rain Showers 8 to 12 mph W 25%
Thursday 51°F Rain Showers Likely 8 to 12 mph NW 55%
Thursday Night 37°F Mostly Cloudy 3 to 8 mph N 7%
Friday 52°F Partly Sunny 5 mph N 2%
Friday Night 34°F Mostly Cloudy 1 mph NNW 0%
Saturday 57°F Mostly Sunny 0 to 6 mph WSW 2%
Saturday Night 37°F Mostly Clear 2 mph W 4%
Sunday 62°F Sunny 1 to 6 mph WSW 6%
Sunday Night 40°F Mostly Clear 3 mph SSW 0%
Monday 65°F Sunny 5 to 10 mph SW 0%
Monday Night 41°F Mostly Clear 5 mph NW 0%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Atlantic, IA

Last spring frost
Apr 30
First fall frost
Oct 2
Growing season
153 days
Hardiness zone
5a

Explore more for Atlantic, IA: full frost dates · planting calendar · Iowa frost dates

Climate data from the nearest NOAA station, Atlantic 1 Ne, Ia (0.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.