Atlantic, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Atlantic, a city in Cass County, Iowa.
This Afternoon
84°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy. High near 84, with temperatures falling to around 77 in the afternoon. North wind around 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Atlantic
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Slight Chance Showers And Thunderstorms | 9 mph N | 23% |
| Tonight | 61°F | Chance Showers And Thunderstorms | 7 to 12 mph NNE | 48% |
| Sunday | 65°F | Slight Chance Drizzle then Chance Rain Showers | 8 to 12 mph NNE | 41% |
| Sunday Night | 55°F | Rain Showers Likely | 7 to 10 mph NE | 65% |
| Monday | 58°F | Rain Showers | 10 mph NE | 77% |
| Monday Night | 50°F | Rain Showers Likely then Mostly Cloudy | 5 to 9 mph NE | 71% |
| Tuesday | 60°F | Mostly Cloudy | 7 mph NE | 4% |
| Tuesday Night | 46°F | Partly Cloudy | 1 to 6 mph ENE | 2% |
| Wednesday | 63°F | Mostly Sunny | 1 to 5 mph E | 0% |
| Wednesday Night | 52°F | Mostly Cloudy | 3 mph ESE | 14% |
| Thursday | 66°F | Chance Rain Showers | 2 to 7 mph SSE | 35% |
| Thursday Night | 57°F | Chance Rain Showers | 0 to 5 mph SE | 29% |
| Friday | 68°F | Slight Chance Rain Showers | 0 to 6 mph ESE | 19% |
| Friday Night | 59°F | Mostly Cloudy then Chance Rain Showers | 5 mph ESE | 25% |
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 20, 2026.