Montrose, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Montrose, a village in Jasper County, Illinois.
This Afternoon
77°F
Slight Chance Light Rain
A slight chance of rain. Partly sunny, with a high near 77. South southeast wind around 16 mph, with gusts as high as 29 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Montrose
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Slight Chance Light Rain | 16 mph SSE | 21% |
| Tonight | 57°F | Rain | 12 to 17 mph S | 88% |
| Wednesday | 64°F | Slight Chance Light Rain then Mostly Cloudy | 8 to 14 mph SW | 20% |
| 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 | 57°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 | 0% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph WNW | 1% |
| Sunday | 60°F | Sunny | 2 to 7 mph W | 7% |
| Sunday Night | 34°F | Mostly Clear | 3 mph NW | 6% |
| Monday | 63°F | Sunny | 2 to 8 mph WSW | 3% |
| Monday Night | 39°F | Mostly Clear | 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Montrose (39.166, -88.378). Updated through the day.
Growing snapshot for Montrose
Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
190 days
Hardiness zone
6b
More local growing data for Montrose: nearby ZIP 62445 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Newton, Il (14.4 mi from Montrose). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.