Millbrook, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Millbrook, a village in Kendall County, Illinois.
Today
80°F
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Cloudy, with a high near 80. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Millbrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Showers And Thunderstorms | 5 to 10 mph SE | 92% |
| Tonight | 65°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph SE | 95% |
| Sunday | 72°F | Showers And Thunderstorms Likely | 10 to 15 mph NNE | 64% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 15 mph NE | 40% |
| Monday | 66°F | Chance Rain Showers | 15 mph ENE | 43% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 29% |
| 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 | 7% |
| Wednesday Night | 52°F | Partly Cloudy | 5 to 10 mph NNE | 1% |
| Thursday | 69°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 53°F | Partly Cloudy | 5 to 10 mph NNE | 3% |
| Friday | 73°F | Mostly Sunny | 5 to 10 mph NE | 3% |
| Friday Night | 52°F | Partly Cloudy | 5 to 10 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Millbrook (41.607, -88.545). Updated through the day.
Growing snapshot for Millbrook
Last spring frost
Apr 28
First fall frost
Oct 13
Growing season
166 days
More local growing data for Millbrook: nearby ZIP 60536 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Chicago Aurora Muni Ap, Il (12.4 mi from Millbrook). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.