Mount Zion, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Zion, a village in Macon County, Illinois.
Overnight
62°F
Patchy Fog
Patchy fog. Clear, with a low around 62. Southeast wind around 3 mph.
7-day forecast for Mount Zion
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Patchy Fog | 3 mph SE | 0% |
| Tuesday | 85°F | Patchy Fog then Sunny | 6 mph SSE | 0% |
| Tuesday Night | 66°F | Mostly Clear | 5 mph SSE | 0% |
| Wednesday | 86°F | Mostly Sunny | 3 to 8 mph S | 8% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 6 mph S | 81% |
| Thursday | 82°F | Showers And Thunderstorms | 7 mph SSW | 81% |
| Thursday Night | 65°F | Slight Chance Showers And Thunderstorms | 1 to 6 mph S | 24% |
| Friday | 83°F | Partly Sunny | 5 mph SW | 12% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 mph SSW | 21% |
| Saturday | 85°F | Slight Chance Rain Showers then Mostly Sunny | 6 mph SSW | 19% |
| Saturday Night | 70°F | Mostly Clear | 5 to 8 mph SSW | 13% |
| Sunday | 88°F | Sunny | 8 to 13 mph SSW | 7% |
| Sunday Night | 71°F | Mostly Clear | 12 mph SSW | 11% |
| Monday | 89°F | Mostly Sunny | 12 mph SSW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Mount Zion (39.784, -88.885). Updated through the day.
Growing snapshot for Mount Zion
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for Mount Zion: nearby ZIP 62549 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Argenta
Boody
Dalton City
Decatur
Elwin
Forsyth
Harristown
Long Creek
Macon
Maroa
Niantic
Oreana
Warrensburg
Climate data from the nearest NOAA station, Decatur Ap, Il (4.4 mi from Mount Zion). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.