Atlantic, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Atlantic, a city in Cass County, Iowa.
Today
82°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 82, with temperatures falling to around 79 in the afternoon. North northwest wind 3 to 12 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Atlantic
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Chance Showers And Thunderstorms | 3 to 12 mph NNW | 30% |
| Tonight | 60°F | Showers And Thunderstorms | 5 to 12 mph NE | 87% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 46% |
| Wednesday Night | 56°F | Partly Cloudy | 1 to 7 mph ENE | 12% |
| Thursday | 81°F | Sunny | 0 to 5 mph E | 2% |
| Thursday Night | 61°F | Mostly Clear | 3 mph SE | 4% |
| Friday | 85°F | Sunny | 3 to 9 mph S | 4% |
| Friday Night | 66°F | Mostly Clear | 3 to 7 mph S | 7% |
| Saturday | 89°F | Sunny | 3 to 13 mph S | 4% |
| Saturday Night | 71°F | Mostly Clear | 13 mph S | 10% |
| Sunday | 90°F | Mostly Sunny | 9 to 14 mph S | 10% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms | 13 mph SSE | 24% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 12 to 15 mph S | 24% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 9 to 15 mph SE | 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 Aug 4, 2026.