Shirley, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shirley, a community in Mclean County, Illinois.
This Afternoon
71°F
Light Rain Likely
Rain likely and a slight chance of thunderstorms. Mostly cloudy, with a high near 71. South wind 21 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Shirley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Light Rain Likely | 21 to 24 mph S | 68% |
| Tonight | 53°F | Light Rain | 15 to 20 mph S | 82% |
| Wednesday | 61°F | Chance Light Rain then Mostly Cloudy | 15 to 18 mph SW | 27% |
| Wednesday Night | 45°F | Mostly Cloudy | 13 mph SW | 5% |
| Thursday | 60°F | Mostly Sunny | 12 to 16 mph WSW | 7% |
| Thursday Night | 42°F | Mostly Cloudy then Slight Chance Light Rain | 6 to 9 mph NW | 24% |
| Friday | 55°F | Slight Chance Light Rain then Partly Sunny | 8 to 13 mph NNW | 17% |
| Friday Night | 35°F | Partly Cloudy | 3 to 10 mph N | 7% |
| Saturday | 53°F | Mostly Sunny | 6 mph NW | 2% |
| Saturday Night | 33°F | Partly Cloudy | 5 mph W | 3% |
| Sunday | 60°F | Sunny | 5 to 12 mph W | 13% |
| Sunday Night | 34°F | Mostly Clear | 5 to 8 mph W | 7% |
| Monday | 64°F | Sunny | 5 to 14 mph SW | 3% |
| Monday Night | 39°F | Mostly Clear | 6 to 10 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Shirley (40.407, -89.064). Updated through the day.
Growing snapshot for Shirley
Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6a
More local growing data for Shirley: nearby ZIP 61772 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Bloomington 5W, Il (7 mi from Shirley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.