Harman US

Chester, IA Weather & Growing Conditions

This Afternoon
65°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. High near 65, with temperatures falling to around 62 in the afternoon. West wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 65°F Chance Rain Showers 9 mph W 49%
Tonight 49°F Showers And Thunderstorms 8 to 12 mph E 90%
Wednesday 52°F Rain Showers 9 to 15 mph SW 80%
Wednesday Night 44°F Rain Showers 16 mph W 87%
Thursday 49°F Rain Showers Likely 15 mph NW 72%
Thursday Night 37°F Mostly Cloudy 9 to 13 mph N 9%
Friday 46°F Partly Sunny 5 to 10 mph N 0%
Friday Night 30°F Partly Cloudy 2 mph NW 0%
Saturday 51°F Mostly Sunny 2 to 7 mph SW 1%
Saturday Night 36°F Partly Cloudy 7 mph W 5%
Sunday 56°F Sunny 9 mph W 11%
Sunday Night 37°F Mostly Clear 8 mph SW 2%
Monday 58°F Mostly Sunny 8 to 13 mph SW 0%
Monday Night 40°F Mostly Clear 8 mph W 1%

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

Growing snapshot for Chester, IA

Last spring frost
May 8
First fall frost
Oct 1
Growing season
147 days
Hardiness zone
4b

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

Climate data from the nearest NOAA station, Cresco 1 Ne, Ia (16.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.