Warrensburg, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Warrensburg, a village in Macon County, Illinois.
Overnight
63°F
Mostly Clear
Mostly clear, with a low around 63. Southeast wind around 5 mph.
7-day forecast for Warrensburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Mostly Clear | 5 mph SE | 0% |
| Tuesday | 85°F | Sunny | 6 mph S | 0% |
| Tuesday Night | 66°F | Mostly Clear | 6 mph SSE | 0% |
| Wednesday | 85°F | Mostly Sunny | 5 to 8 mph SSW | 14% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 7 mph S | 80% |
| Thursday | 81°F | Showers And Thunderstorms | 8 mph SSW | 80% |
| Thursday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph S | 22% |
| Friday | 83°F | Mostly Sunny | 5 mph SSW | 10% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 24% |
| Saturday | 85°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 8 mph SSW | 17% |
| Saturday Night | 70°F | Mostly Clear | 6 to 9 mph S | 12% |
| Sunday | 87°F | Sunny | 9 to 15 mph SSW | 6% |
| Sunday Night | 72°F | Mostly Clear | 10 to 14 mph SSW | 11% |
| Monday | 88°F | Mostly Sunny | 13 mph SSW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Warrensburg (39.932, -89.063). Updated through the day.
Growing snapshot for Warrensburg
Last spring frost
Apr 14
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
6a
More local growing data for Warrensburg: nearby ZIP 62573 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Argenta
Boody
Dalton City
Decatur
Elwin
Forsyth
Harristown
Long Creek
Macon
Maroa
Mount Zion
Niantic
Oreana
Climate data from the nearest NOAA station, Decatur Wtp, Il (10.3 mi from Warrensburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.