Harman US

Manchester, IL Weather & Growing Conditions

Overnight
54°F
Slight Chance Light Rain
A slight chance of rain before 3am. Mostly cloudy, with a low around 54. Southwest wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 54°F Slight Chance Light Rain 12 mph SW 17%
Wednesday 59°F Patchy Drizzle 12 to 15 mph WSW 10%
Wednesday Night 45°F Patchy Drizzle then Mostly Cloudy 10 mph WSW 10%
Thursday 61°F Partly Sunny 9 to 14 mph W 3%
Thursday Night 43°F Mostly Cloudy 5 to 8 mph NW 5%
Friday 55°F Partly Sunny 10 mph NNW 2%
Friday Night 32°F Partly Cloudy 1 to 7 mph N 0%
Saturday 54°F Mostly Sunny 1 to 5 mph NNW 0%
Saturday Night 32°F Partly Cloudy 2 mph NW 0%
Sunday 60°F Sunny 2 to 6 mph WNW 2%
Sunday Night 34°F Clear 2 mph WSW 0%
Monday 65°F Sunny 1 to 6 mph SW 0%
Monday Night 39°F Clear 3 mph SW 0%
Tuesday 67°F Sunny 3 mph WNW 1%

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

Growing snapshot for Manchester, IL

Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
190 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, White Hall 1 E, Il (7.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.