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Bethany, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Bethany, a village in Moultrie County, Illinois.

Overnight
53°F
Light Rain
Rain before 5am, then a slight chance of rain showers. Mostly cloudy. Low around 53, with temperatures rising to around 59 overnight. South wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Bethany

WhenTempForecastWindPrecip
Overnight 53°F Light Rain 15 mph S 89%
Wednesday 61°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph SW 18%
Wednesday Night 42°F Mostly Cloudy 8 mph SW 0%
Thursday 62°F Mostly Sunny 8 to 14 mph WSW 2%
Thursday Night 41°F Mostly Cloudy then Slight Chance Light Rain 6 mph WNW 15%
Friday 56°F Partly Sunny 6 to 10 mph NNW 13%
Friday Night 34°F Partly Cloudy 2 to 8 mph NNW 6%
Saturday 54°F Mostly Sunny 5 mph NW 1%
Saturday Night 32°F Partly Cloudy 2 mph W 1%
Sunday 60°F Sunny 2 to 9 mph W 9%
Sunday Night 32°F Mostly Clear 6 mph WNW 6%
Monday 64°F Sunny 3 to 10 mph WSW 3%
Monday Night 37°F Mostly Clear 6 mph WSW 2%
Tuesday 67°F Sunny 7 mph WNW 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

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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 Nov 4, 2026.