Harman US

Berlin, IL Weather & Growing Conditions

Overnight
55°F
Slight Chance Light Rain
A slight chance of rain before 4am. Mostly cloudy, with a low around 55. Southwest wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 55°F Slight Chance Light Rain 12 mph SW 16%
Wednesday 59°F Patchy Drizzle 15 mph WSW 10%
Wednesday Night 46°F Patchy Drizzle then Mostly Cloudy 12 mph WSW 10%
Thursday 61°F Partly Sunny 10 to 15 mph W 9%
Thursday Night 43°F Mostly Cloudy 5 to 8 mph NW 9%
Friday 54°F Partly Sunny 12 mph NNW 5%
Friday Night 32°F Partly Cloudy 1 to 8 mph NNW 0%
Saturday 54°F Mostly Sunny 1 to 5 mph NNW 0%
Saturday Night 32°F Partly Cloudy 2 mph WNW 1%
Sunday 59°F Sunny 2 to 7 mph WNW 1%
Sunday Night 33°F Clear 3 mph W 1%
Monday 64°F Sunny 2 to 7 mph SW 0%
Monday Night 39°F Clear 5 mph SW 0%
Tuesday 66°F Sunny 5 mph WNW 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Berlin, IL

Last spring frost
Apr 15
First fall frost
Oct 22
Growing season
188 days
Hardiness zone
6a

Explore more for Berlin, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Springfield #2, Il (12.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.