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McCallsburg, IA Weather & Growing Conditions

This Afternoon
77°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 77, with temperatures falling to around 72 in the afternoon. West northwest wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 77°F Chance Showers And Thunderstorms 5 to 8 mph WNW 33%
Tonight 60°F Chance Showers And Thunderstorms 7 to 10 mph N 35%
Sunday 65°F Slight Chance Rain Showers then Chance Drizzle 14 mph NE 40%
Sunday Night 55°F Chance Drizzle then Rain Showers Likely 13 mph ENE 55%
Monday 59°F Rain Showers 13 mph NE 81%
Monday Night 50°F Rain Showers 7 to 10 mph NE 81%
Tuesday 60°F Slight Chance Rain Showers then Partly Sunny 8 mph NE 18%
Tuesday Night 47°F Partly Cloudy 2 to 6 mph ENE 4%
Wednesday 64°F Mostly Sunny 5 mph E 1%
Wednesday Night 52°F Partly Cloudy 3 mph E 7%
Thursday 66°F Slight Chance Rain Showers 5 mph SE 20%
Thursday Night 56°F Slight Chance Rain Showers 2 mph ESE 20%
Friday 68°F Slight Chance Rain Showers then Mostly Cloudy 5 mph ESE 20%
Friday Night 58°F Mostly Cloudy 3 mph ESE 9%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for McCallsburg, IA

Last spring frost
Apr 24
First fall frost
Oct 12
Growing season
170 days
Hardiness zone
5a

Explore more for McCallsburg, IA: full frost dates · planting calendar · Iowa frost dates

Climate data from the nearest NOAA station, Colo, Ia (11.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.