Calumet, IA Weather & Growing Conditions
Overnight
62°F
Widespread Fog
Widespread fog and a chance of showers and thunderstorms. Cloudy. Low around 62, with temperatures rising to around 66 overnight. North northwest wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Widespread Fog | 5 mph NNW | 32% |
| Saturday | 69°F | Widespread Fog then Cloudy | 5 to 10 mph N | 40% |
| Saturday Night | 56°F | Slight Chance Rain Showers then Cloudy | 10 to 15 mph NNE | 16% |
| Sunday | 65°F | Cloudy then Slight Chance Rain Showers | 15 mph NE | 19% |
| Sunday Night | 52°F | Rain Showers Likely | 10 to 15 mph ENE | 57% |
| Monday | 59°F | Rain Showers Likely | 10 mph ENE | 57% |
| Monday Night | 46°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph ENE | 43% |
| Tuesday | 61°F | Partly Sunny | 5 to 10 mph E | 7% |
| Tuesday Night | 43°F | Partly Cloudy | 5 mph ESE | 2% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph SE | 2% |
| Wednesday Night | 49°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SE | 22% |
| Thursday | 67°F | Slight Chance Rain Showers | 5 to 10 mph SE | 22% |
| Thursday Night | 53°F | Mostly Cloudy | 5 mph SE | 14% |
| Friday | 69°F | Partly Sunny | 5 to 10 mph SE | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Calumet, IA
Last spring frost
Apr 29
First fall frost
Oct 10
Growing season
163 days
Hardiness zone
5a
Explore more for Calumet, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Primghar, Ia (10.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.