Elwin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Elwin, a community in Macon County, Illinois.
This Afternoon
88°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy, with a high near 88. South southwest wind around 7 mph. Chance of precipitation is 20%.
7-day forecast for Elwin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 88°F | Slight Chance Rain Showers | 7 mph SSW | 20% |
| Tonight | 69°F | Mostly Cloudy | 6 mph S | 11% |
| Sunday | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 6 to 12 mph N | 31% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 13 mph NE | 50% |
| Monday | 71°F | Showers And Thunderstorms Likely | 9 to 17 mph ENE | 66% |
| Monday Night | 54°F | Chance Rain Showers | 14 mph ENE | 45% |
| Tuesday | 67°F | Chance Rain Showers | 15 mph NE | 41% |
| Tuesday Night | 52°F | Mostly Cloudy | 7 to 13 mph NNE | 8% |
| Wednesday | 69°F | Partly Sunny | 12 mph NNE | 4% |
| Wednesday Night | 53°F | Partly Cloudy | 5 to 10 mph NNE | 0% |
| Thursday | 72°F | Partly Sunny | 5 to 8 mph NNE | 1% |
| Thursday Night | 55°F | Mostly Cloudy | 3 to 7 mph NNE | 7% |
| Friday | 75°F | Partly Sunny then Slight Chance Rain Showers | 5 to 9 mph NNE | 15% |
| Friday Night | 55°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 8 mph NE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Elwin (39.776, -88.978). Updated through the day.
Growing snapshot for Elwin
Last spring frost
Apr 14
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
6a
More local growing data for Elwin: nearby ZIP 62532 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Argenta
Boody
Dalton City
Decatur
Forsyth
Harristown
Long Creek
Macon
Maroa
Mount Zion
Niantic
Oreana
Warrensburg
Climate data from the nearest NOAA station, Decatur Wtp, Il (3.9 mi from Elwin). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.