Downs, IL Weather & Growing Conditions
Tonight
54°F
Light Rain then Rain Showers
Rain and a slight chance of thunderstorms before midnight, then rain showers. Mostly cloudy. Low around 54, with temperatures rising to around 59 overnight. South wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Light Rain then Rain Showers | 16 to 20 mph S | 96% |
| Wednesday | 61°F | Slight Chance Light Rain then Mostly Cloudy | 15 to 18 mph SW | 23% |
| Wednesday Night | 45°F | Mostly Cloudy | 13 mph SW | 6% |
| Thursday | 60°F | Partly Sunny | 13 to 17 mph WSW | 6% |
| Thursday Night | 43°F | Mostly Cloudy then Slight Chance Light Rain | 6 to 10 mph NW | 23% |
| Friday | 55°F | Slight Chance Light Rain then Partly Sunny | 9 to 14 mph NNW | 18% |
| Friday Night | 35°F | Mostly Cloudy | 5 to 12 mph NNW | 6% |
| Saturday | 53°F | Mostly Sunny | 7 mph WNW | 2% |
| Saturday Night | 34°F | Partly Cloudy | 5 mph W | 3% |
| Sunday | 59°F | Sunny | 5 to 12 mph W | 13% |
| Sunday Night | 35°F | Mostly Clear | 6 to 9 mph WNW | 7% |
| Monday | 63°F | Sunny | 6 to 14 mph WSW | 2% |
| Monday Night | 39°F | Mostly Clear | 7 to 10 mph WSW | 2% |
| Tuesday | 66°F | Sunny | 9 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Downs, IL
Last spring frost
Apr 25
First fall frost
Oct 16
Growing season
172 days
Hardiness zone
6a
Explore more for Downs, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Normal 4Ne, Il (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.