Winslow, IL Weather & Growing Conditions
Overnight
61°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 4am, then patchy fog and occasional showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 61, with temperatures rising to around 63 overnight. East wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Showers And Thunderstorms Likely | 10 mph E | 94% |
| Saturday | 75°F | Patchy Fog | 5 to 10 mph SE | 99% |
| Saturday Night | 60°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph E | 87% |
| Sunday | 67°F | Chance Rain Showers | 10 to 15 mph NE | 43% |
| Sunday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 15 mph NE | 22% |
| Monday | 63°F | Chance Rain Showers | 15 mph NE | 34% |
| Monday Night | 48°F | Slight Chance Rain Showers | 10 to 15 mph NE | 22% |
| Tuesday | 62°F | Slight Chance Rain Showers then Partly Sunny | 10 to 15 mph NE | 15% |
| Tuesday Night | 46°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 48°F | Partly Cloudy | 5 to 10 mph NE | 1% |
| Thursday | 66°F | Mostly Sunny | 5 mph NE | 5% |
| Thursday Night | 49°F | Partly Cloudy | 5 mph NE | 4% |
| Friday | 69°F | Mostly Sunny | 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Winslow, IL
Last spring frost
Apr 27
First fall frost
Oct 9
Growing season
165 days
Hardiness zone
5a
Explore more for Winslow, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Stockton 3 Nne, Il (9.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.