Harman US

Sandwich, IL Weather & Growing Conditions

Overnight
64°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely after 2am. Cloudy. Low around 64, with temperatures rising to around 66 overnight. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 64°F Showers And Thunderstorms Likely 10 mph ESE 72%
Saturday 80°F Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 10 mph ESE 95%
Saturday Night 64°F Showers And Thunderstorms 5 to 10 mph ESE 96%
Sunday 71°F Showers And Thunderstorms Likely 10 to 15 mph NNE 62%
Sunday Night 56°F Chance Showers And Thunderstorms 15 mph NE 39%
Monday 65°F Chance Rain Showers 15 mph ENE 43%
Monday Night 52°F Chance Rain Showers 10 to 15 mph NE 27%
Tuesday 64°F Slight Chance Rain Showers 15 mph NE 19%
Tuesday Night 51°F Mostly Cloudy 10 to 15 mph NE 10%
Wednesday 67°F Mostly Sunny 10 to 15 mph NNE 6%
Wednesday Night 52°F Partly Cloudy 5 to 10 mph NNE 1%
Thursday 69°F Mostly Sunny 5 to 10 mph NNE 3%
Thursday Night 52°F Partly Cloudy 5 to 10 mph NNE 3%
Friday 73°F Mostly Sunny 5 to 10 mph NE 3%

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

Growing snapshot for Sandwich, IL

Last spring frost
Apr 28
First fall frost
Oct 13
Growing season
166 days
Hardiness zone
5b

Explore more for Sandwich, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Chicago Aurora Muni Ap, Il (11.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.