Cisco, IL Weather & Growing Conditions
Today
63°F
Slight Chance Drizzle
A slight chance of drizzle. Mostly cloudy. High near 63, with temperatures falling to around 58 in the afternoon. Southwest wind 13 to 16 mph, with gusts as high as 26 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Slight Chance Drizzle | 13 to 16 mph SW | 10% |
| Tonight | 44°F | Slight Chance Drizzle then Mostly Cloudy | 13 mph WSW | 10% |
| Thursday | 61°F | Mostly Cloudy | 13 to 16 mph WSW | 14% |
| Thursday Night | 42°F | Mostly Cloudy | 7 to 10 mph NW | 9% |
| Friday | 53°F | Partly Sunny | 14 mph NNW | 8% |
| Friday Night | 32°F | Partly Cloudy | 5 to 13 mph NNW | 0% |
| Saturday | 53°F | Sunny | 5 to 8 mph NNW | 0% |
| Saturday Night | 31°F | Mostly Clear | 6 mph WNW | 1% |
| Sunday | 59°F | Sunny | 5 to 12 mph WNW | 1% |
| Sunday Night | 32°F | Clear | 3 to 8 mph W | 0% |
| Monday | 64°F | Sunny | 3 to 10 mph SW | 0% |
| Monday Night | 37°F | Clear | 8 mph SW | 0% |
| Tuesday | 66°F | Sunny | 7 mph WNW | 1% |
| Tuesday Night | 38°F | Mostly Clear | 6 mph N | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cisco, IL
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
Explore more for Cisco, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Decatur Ap, Il (14.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.