Cisco, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cisco, a village in Piatt County, Illinois.
Today
86°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 86. South southeast wind around 6 mph.
7-day forecast for Cisco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Patchy Fog then Sunny | 6 mph SSE | 0% |
| Tonight | 65°F | Mostly Clear | 6 mph SSE | 1% |
| Wednesday | 85°F | Mostly Sunny | 5 to 9 mph SSW | 9% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 8 mph S | 80% |
| Thursday | 81°F | Showers And Thunderstorms | 8 mph SSW | 80% |
| Thursday Night | 65°F | Chance Showers And Thunderstorms | 3 to 7 mph S | 29% |
| Friday | 83°F | Mostly Sunny | 6 mph SW | 12% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 5 mph SSW | 25% |
| Saturday | 85°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 8 mph SSW | 17% |
| Saturday Night | 70°F | Mostly Clear | 7 to 10 mph SSW | 13% |
| Sunday | 87°F | Sunny | 10 to 15 mph SSW | 8% |
| Sunday Night | 72°F | Mostly Clear | 10 to 15 mph SSW | 11% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms | 10 to 14 mph SSW | 15% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 13 mph SW | 26% |
Forecast source: National Weather Service (api.weather.gov) for Cisco (40.012, -88.725). Updated through the day.
Growing snapshot for Cisco
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for Cisco: nearby ZIP 61830 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Atwood
Bement
Cerro Gordo
De Land
Garrett
Hammond
Lake City
LaPlace
Mansfield
Monticello
White Heath
Climate data from the nearest NOAA station, Decatur Ap, Il (14.2 mi from Cisco). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.