McCallsburg, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McCallsburg, a city in Story County, Iowa.
Overnight
44°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 44, with temperatures rising to around 46 overnight. West northwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for McCallsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Chance Rain Showers | 8 to 13 mph WNW | 30% |
| Wednesday | 51°F | Chance Rain Showers | 13 to 16 mph W | 29% |
| Wednesday Night | 44°F | Cloudy then Chance Rain Showers | 13 mph W | 26% |
| Thursday | 53°F | Rain Showers Likely then Cloudy | 13 mph NW | 62% |
| Thursday Night | 38°F | Mostly Cloudy | 5 to 9 mph N | 11% |
| Friday | 49°F | Mostly Sunny | 3 to 7 mph NNE | 4% |
| Friday Night | 30°F | Partly Cloudy | 2 mph NNE | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 35°F | Mostly Clear | 3 mph W | 1% |
| Sunday | 58°F | Sunny | 6 mph W | 1% |
| Sunday Night | 37°F | Clear | 3 mph SW | 0% |
| Monday | 64°F | Sunny | 3 to 8 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 63°F | Sunny | 3 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for McCallsburg (42.165, -93.391). Updated through the day.
Growing snapshot for McCallsburg
Last spring frost
Apr 24
First fall frost
Oct 12
Growing season
170 days
Hardiness zone
5a
More local growing data for McCallsburg: nearby ZIP 50154 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Colo, Ia (11.6 mi from McCallsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.