Montrose, IL Weather & Growing Conditions
Tonight
57°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 57. South wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Showers And Thunderstorms | 13 to 17 mph S | 97% |
| Wednesday | 64°F | Slight Chance Light Rain then Mostly Cloudy | 8 to 14 mph SW | 22% |
| Wednesday Night | 44°F | Mostly Cloudy | 6 mph WSW | 0% |
| Thursday | 64°F | Sunny | 6 to 12 mph WSW | 0% |
| Thursday Night | 44°F | Mostly Cloudy | 3 mph WNW | 3% |
| Friday | 58°F | Partly Sunny | 3 to 9 mph NNW | 8% |
| Friday Night | 38°F | Partly Cloudy | 3 to 7 mph NNW | 2% |
| Saturday | 56°F | Mostly Sunny | 5 mph NW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph WNW | 1% |
| Sunday | 61°F | Sunny | 2 to 8 mph W | 7% |
| Sunday Night | 34°F | Mostly Clear | 5 mph NW | 6% |
| Monday | 63°F | Sunny | 2 to 8 mph WSW | 3% |
| Monday Night | 38°F | Mostly Clear | 5 mph WSW | 1% |
| Tuesday | 67°F | Sunny | 6 mph W | 1% |
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 Nov 4, 2026.