Chelsea, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chelsea, a city in Tama County, Iowa.
Overnight
46°F
Slight Chance Rain Showers
A slight chance of rain showers after 5am. Cloudy. Low around 46, with temperatures rising to around 49 overnight. West southwest wind around 10 mph. Chance of precipitation is 20%.
7-day forecast for Chelsea
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Slight Chance Rain Showers | 10 mph WSW | 16% |
| Wednesday | 54°F | Slight Chance Rain Showers | 13 mph W | 19% |
| Wednesday Night | 42°F | Cloudy | 12 mph W | 14% |
| Thursday | 54°F | Chance Rain Showers | 10 mph NW | 35% |
| Thursday Night | 37°F | Mostly Cloudy | 8 mph N | 9% |
| Friday | 50°F | Mostly Sunny | 7 mph N | 3% |
| Friday Night | 28°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph WNW | 0% |
| Saturday Night | 33°F | Mostly Clear | 3 mph W | 1% |
| Sunday | 58°F | Sunny | 6 mph W | 2% |
| Sunday Night | 34°F | Clear | 3 mph SW | 0% |
| Monday | 64°F | Sunny | 2 to 8 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 2 to 6 mph W | 0% |
| Tuesday | 63°F | Sunny | 3 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Chelsea (41.920, -92.394). Updated through the day.
Growing snapshot for Chelsea
Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
165 days
Hardiness zone
5a
More local growing data for Chelsea: nearby ZIP 52215 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Belle Plaine, Ia (7 mi from Chelsea). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.