Heyworth, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Heyworth, a village in Mclean County, Illinois.
This Afternoon
82°F
Slight Chance Showers And Thunderstorms
A chance of rain showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Partly sunny. High near 82, with temperatures falling to around 77 in the afternoon. East northeast wind around 12 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Heyworth
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Slight Chance Showers And Thunderstorms | 12 mph ENE | 46% |
| Tonight | 69°F | Partly Cloudy | 10 mph ESE | 5% |
| Saturday | 87°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 10 mph S | 21% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 5 to 8 mph S | 33% |
| Sunday | 81°F | Showers And Thunderstorms Likely | 6 to 16 mph NNE | 65% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 14 to 18 mph NE | 65% |
| Monday | 68°F | Showers And Thunderstorms Likely | 16 to 20 mph ENE | 63% |
| Monday Night | 53°F | Chance Showers And Thunderstorms | 15 to 20 mph NE | 51% |
| Tuesday | 66°F | Chance Rain Showers then Mostly Cloudy | 17 mph NE | 28% |
| Tuesday Night | 51°F | Mostly Cloudy | 8 to 17 mph NNE | 7% |
| Wednesday | 69°F | Partly Sunny | 13 mph NNE | 3% |
| Wednesday Night | 52°F | Partly Cloudy | 6 to 12 mph NNE | 3% |
| Thursday | 70°F | Mostly Sunny | 7 to 10 mph NNE | 3% |
| Thursday Night | 54°F | Partly Cloudy | 5 to 10 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Heyworth (40.314, -88.992). Updated through the day.
Growing snapshot for Heyworth
Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6a
More local growing data for Heyworth: nearby ZIP 61745 weather · frost dates · planting calendar · Illinois frost dates
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McLean
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Climate data from the nearest NOAA station, Bloomington 5W, Il (13.1 mi from Heyworth). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.