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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.