Harman US

Cascade, IA Weather & Growing Conditions

Tonight
51°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. Low around 51, with temperatures rising to around 54 overnight. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

7-day forecast

WhenTempForecastWindPrecip
Tonight 51°F Showers And Thunderstorms 10 to 15 mph S 75%
Wednesday 54°F Chance Rain Showers 15 mph SW 47%
Wednesday Night 44°F Chance Rain Showers 10 to 15 mph SW 34%
Thursday 52°F Rain Showers Likely 5 to 10 mph W 68%
Thursday Night 40°F Slight Chance Rain Showers then Mostly Cloudy 5 to 10 mph N 21%
Friday 50°F Partly Sunny 5 to 10 mph N 8%
Friday Night 32°F Partly Cloudy 0 to 5 mph N 0%
Saturday 52°F Mostly Sunny 0 to 5 mph W 2%
Saturday Night 34°F Mostly Clear 0 to 5 mph W 4%
Sunday 58°F Sunny 5 mph W 13%
Sunday Night 35°F Mostly Clear 0 to 5 mph W 2%
Monday 61°F Sunny 5 to 10 mph SW 1%
Monday Night 39°F Mostly Clear 5 mph W 0%
Tuesday 61°F Sunny 5 mph NW 0%

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

Growing snapshot for Cascade, IA

Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
164 days
Hardiness zone
5a

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

Climate data from the nearest NOAA station, Cascade, Ia (1.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.