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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

WhenTempForecastWindPrecip
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

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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.