Calamus, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calamus, a city in Clinton County, Iowa.
Today
54°F
Chance Rain Showers
A chance of rain showers before 3pm. Cloudy, with a high near 54. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
7-day forecast for Calamus
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 54°F | Chance Rain Showers | 10 mph SW | 33% |
| Tonight | 46°F | Slight Chance Rain Showers | 5 to 10 mph SW | 22% |
| Thursday | 55°F | Chance Rain Showers | 5 to 10 mph W | 52% |
| Thursday Night | 41°F | Mostly Cloudy | 5 mph N | 14% |
| Friday | 50°F | Partly Sunny | 5 mph N | 4% |
| Friday Night | 31°F | Mostly Clear | 0 mph | 0% |
| Saturday | 52°F | Sunny | 0 mph | 0% |
| Saturday Night | 35°F | Mostly Clear | 0 mph | 2% |
| Sunday | 57°F | Sunny | 0 to 5 mph W | 2% |
| Sunday Night | 35°F | Clear | 0 mph | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 0 to 5 mph W | 0% |
| Tuesday | 63°F | Sunny | 0 mph | 0% |
| Tuesday Night | 40°F | Partly Cloudy | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov) for Calamus (41.826, -90.760). Updated through the day.
Growing snapshot for Calamus
Last spring frost
Apr 27
First fall frost
Oct 10
Growing season
165 days
Hardiness zone
5b
More local growing data for Calamus: nearby ZIP 52729 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Andover
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Charlotte
Clinton
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DeWitt
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Lost Nation
Low Moor
Toronto
Welton
Wheatland
Climate data from the nearest NOAA station, Lowden, Ia (10.5 mi from Calamus). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.