Atlantic, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Atlantic, a city in Cass County, Iowa.
Today
78°F
Chance Rain Showers then Slight Chance Showers And Thunderstorms
A chance of rain showers before 4pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 78, with temperatures falling to around 76 in the afternoon. North northwest wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Atlantic
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 8 mph NNW | 29% |
| Tonight | 61°F | Chance Showers And Thunderstorms | 7 to 10 mph N | 48% |
| Sunday | 65°F | Chance Showers And Thunderstorms | 8 to 13 mph NNE | 41% |
| Sunday Night | 56°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 40% |
| Monday | 60°F | Rain Showers Likely | 10 mph NE | 56% |
| Monday Night | 51°F | Rain Showers Likely then Mostly Cloudy | 5 to 9 mph ENE | 56% |
| Tuesday | 60°F | Partly Sunny | 5 to 8 mph ENE | 5% |
| Tuesday Night | 46°F | Partly Cloudy | 1 to 6 mph E | 2% |
| Wednesday | 64°F | Mostly Sunny | 1 to 5 mph ESE | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 3 mph ESE | 13% |
| Thursday | 65°F | Chance Rain Showers | 1 to 6 mph SE | 26% |
| Thursday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 5 mph ESE | 20% |
| Friday | 67°F | Slight Chance Rain Showers | 2 to 7 mph ESE | 20% |
| Friday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph SE | 16% |
Forecast source: National Weather Service (api.weather.gov) for Atlantic (41.393, -95.022). Updated through the day.
Growing snapshot for Atlantic
Last spring frost
Apr 30
First fall frost
Oct 2
Growing season
153 days
Hardiness zone
5a
More local growing data for Atlantic: nearby ZIP 50022 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Atlantic 1 Ne, Ia (0.1 mi from Atlantic). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.