Garrett, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Garrett, a village in Piatt County, Illinois.
Today
85°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 85. South southeast wind around 6 mph.
7-day forecast for Garrett
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Patchy Fog then Sunny | 6 mph SSE | 0% |
| Tonight | 65°F | Mostly Clear | 5 mph SSE | 0% |
| Wednesday | 86°F | Sunny | 3 to 7 mph S | 3% |
| Wednesday Night | 67°F | Slight Chance Showers And Thunderstorms | 6 mph S | 60% |
| Thursday | 83°F | Showers And Thunderstorms | 7 mph SSW | 75% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms | 5 mph S | 35% |
| Friday | 84°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 19% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 mph SSW | 19% |
| Saturday | 86°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 6 mph SSW | 18% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 to 8 mph SSW | 15% |
| Sunday | 88°F | Sunny | 8 to 12 mph SSW | 9% |
| Sunday Night | 71°F | Mostly Clear | 10 mph SSW | 11% |
| Monday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 mph SSW | 15% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 9 mph SW | 26% |
Forecast source: National Weather Service (api.weather.gov) for Garrett (39.797, -88.425). Updated through the day.
Growing snapshot for Garrett
Last spring frost
Apr 15
First fall frost
Oct 20
Growing season
188 days
Hardiness zone
6a
More local growing data for Garrett: nearby ZIP 61913 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Tuscola, Il (9.8 mi from Garrett). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.