Bethany, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bethany, a village in Moultrie County, Illinois.
Tonight
71°F
Mostly Cloudy
Mostly cloudy, with a low around 71. South wind around 6 mph.
7-day forecast for Bethany
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Mostly Cloudy | 6 mph S | 2% |
| Sunday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph NNW | 29% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 9 to 13 mph NNE | 47% |
| Monday | 72°F | Showers And Thunderstorms Likely | 9 to 14 mph NE | 67% |
| Monday Night | 54°F | Chance Rain Showers | 8 to 12 mph ENE | 42% |
| Tuesday | 68°F | Chance Rain Showers | 14 mph NE | 32% |
| Tuesday Night | 51°F | Mostly Cloudy | 6 to 12 mph NNE | 9% |
| Wednesday | 70°F | Partly Sunny | 10 mph NNE | 6% |
| Wednesday Night | 52°F | Partly Cloudy | 3 to 9 mph NNE | 0% |
| Thursday | 73°F | Partly Sunny | 5 to 8 mph NNE | 1% |
| Thursday Night | 54°F | Mostly Cloudy | 3 to 7 mph NNE | 6% |
| Friday | 76°F | Partly Sunny then Slight Chance Rain Showers | 3 to 8 mph NNE | 15% |
| Friday Night | 53°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 7 mph NE | 15% |
| Saturday | 78°F | Mostly Sunny | 3 to 7 mph NE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Bethany (39.644, -88.741). Updated through the day.
Growing snapshot for Bethany
Last spring frost
Apr 15
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for Bethany: nearby ZIP 61914 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sullivan 3S, Il (9.5 mi from Bethany). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.