Lake City, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake City, a community in Piatt County, Illinois.
Today
85°F
Sunny
Sunny, with a high near 85. South southeast wind 2 to 6 mph.
7-day forecast for Lake City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 2 to 6 mph SSE | 0% |
| Tonight | 65°F | Mostly Clear | 5 mph SSE | 0% |
| Wednesday | 86°F | Mostly Sunny | 3 to 7 mph S | 5% |
| Wednesday Night | 67°F | Slight Chance Showers And Thunderstorms | 6 mph S | 75% |
| Thursday | 82°F | Showers And Thunderstorms | 7 mph SSW | 76% |
| Thursday Night | 65°F | Chance Showers And Thunderstorms | 5 mph S | 27% |
| Friday | 83°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 15% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 mph SSW | 19% |
| Saturday | 85°F | Slight Chance Rain Showers then Mostly Sunny | 6 mph SSW | 19% |
| Saturday Night | 69°F | Mostly Clear | 5 to 8 mph SSW | 14% |
| Sunday | 87°F | Sunny | 8 to 13 mph SSW | 7% |
| Sunday Night | 71°F | Mostly Clear | 12 mph SSW | 11% |
| Monday | 88°F | Mostly Sunny | 12 mph SSW | 13% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 10 mph SW | 25% |
Forecast source: National Weather Service (api.weather.gov) for Lake City (39.754, -88.719). Updated through the day.
Growing snapshot for Lake City
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for Lake City: nearby ZIP 61936 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Decatur Ap, Il (7.7 mi from Lake City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.