Harman US

Sandwich, IL Weather & Growing Conditions

This Afternoon
74°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. High near 74, with temperatures falling to around 71 in the afternoon. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 74°F Showers And Thunderstorms Likely 5 mph SE 70%
Tonight 65°F Showers And Thunderstorms 5 mph ESE 100%
Sunday 68°F Showers And Thunderstorms 10 to 15 mph NE 84%
Sunday Night 56°F Chance Rain Showers 15 mph NE 29%
Monday 65°F Chance Rain Showers 15 mph ENE 47%
Monday Night 53°F Chance Rain Showers 10 to 15 mph NE 42%
Tuesday 63°F Chance Rain Showers 10 to 15 mph NE 42%
Tuesday Night 51°F Mostly Cloudy 10 to 15 mph NE 14%
Wednesday 66°F Partly Sunny 10 to 15 mph NE 8%
Wednesday Night 52°F Mostly Cloudy 5 to 10 mph NNE 4%
Thursday 69°F Partly Sunny 5 to 10 mph NE 6%
Thursday Night 54°F Mostly Cloudy 5 mph NE 9%
Friday 72°F Partly Sunny 5 to 10 mph NE 8%
Friday Night 52°F Partly Cloudy 0 to 5 mph NE 7%

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 20, 2026.