Montrose, IL Weather & Growing Conditions
Overnight
70°F
Mostly Cloudy
Mostly cloudy, with a low around 70. Southeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Mostly Cloudy | 6 mph SE | 12% |
| Saturday | 94°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 19% |
| Saturday Night | 70°F | Mostly Cloudy | 2 to 6 mph S | 7% |
| Sunday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph NW | 27% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 8 to 12 mph NNE | 55% |
| Monday | 75°F | Showers And Thunderstorms Likely | 13 mph NE | 69% |
| Monday Night | 56°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 9 to 14 mph NE | 55% |
| Tuesday | 70°F | Slight Chance Showers And Thunderstorms | 13 mph NNE | 22% |
| Tuesday Night | 54°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 7 to 13 mph NNE | 19% |
| Wednesday | 72°F | Mostly Sunny | 10 mph N | 5% |
| Wednesday Night | 54°F | Partly Cloudy | 5 to 10 mph N | 3% |
| Thursday | 74°F | Mostly Sunny | 6 to 9 mph N | 2% |
| Thursday Night | 55°F | Partly Cloudy | 3 to 9 mph NNE | 3% |
| Friday | 76°F | Mostly Sunny | 6 to 9 mph NNE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Montrose, IL
Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
190 days
Hardiness zone
6b
Explore more for Montrose, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Newton, Il (14.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.