West Dundee, IL Weather & Growing Conditions
Tonight
63°F
Showers And Thunderstorms
Showers and thunderstorms before 1am, then patchy fog and showers and thunderstorms between 1am and 5am, then patchy fog and showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 63, with temperatures rising to around 66 overnight. Northeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Showers And Thunderstorms | 5 to 10 mph NE | 96% |
| Sunday | 66°F | Patchy Fog | 10 to 15 mph NE | 86% |
| Sunday Night | 55°F | Slight Chance Rain Showers | 10 to 15 mph NE | 19% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 38% |
| Monday Night | 51°F | Chance Rain Showers | 10 to 15 mph ENE | 32% |
| Tuesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 32% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 10 mph NE | 14% |
| Wednesday | 63°F | Partly Sunny | 5 to 10 mph NE | 13% |
| Wednesday Night | 52°F | Mostly Cloudy | 0 to 5 mph NNE | 4% |
| Thursday | 67°F | Partly Sunny | 0 to 5 mph NE | 4% |
| Thursday Night | 53°F | Mostly Cloudy | 0 to 5 mph NE | 12% |
| Friday | 71°F | Partly Sunny | 0 to 5 mph NE | 10% |
| Friday Night | 53°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Saturday | 72°F | Mostly Sunny | 0 to 5 mph ENE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for West Dundee, IL
Last spring frost
Apr 26
First fall frost
Oct 18
Growing season
174 days
Hardiness zone
5b
Explore more for West Dundee, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Elgin, Il (3.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.