Harman US

Nachusa, IL Weather & Growing Conditions

Tonight
55°F
Rain
Rain. Cloudy. Low around 55, with temperatures rising to around 59 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 55°F Rain 15 mph S 85%
Wednesday 58°F Chance Rain then Chance Rain Showers 15 mph SSW 35%
Wednesday Night 46°F Chance Rain Showers 15 mph SW 27%
Thursday 55°F Chance Rain Showers 10 to 15 mph WSW 50%
Thursday Night 41°F Chance Rain Showers 5 to 10 mph NW 34%
Friday 51°F Slight Chance Rain Showers then Mostly Cloudy 5 to 10 mph N 16%
Friday Night 33°F Partly Cloudy 0 to 5 mph NNW 2%
Saturday 52°F Mostly Sunny 0 to 5 mph WNW 2%
Saturday Night 33°F Partly Cloudy 0 to 5 mph WSW 4%
Sunday 58°F Mostly Sunny 5 to 10 mph W 12%
Sunday Night 34°F Mostly Clear 5 mph W 5%
Monday 61°F Sunny 5 to 10 mph SW 1%
Monday Night 38°F Mostly Clear 5 mph W 0%
Tuesday 62°F Sunny 5 mph WNW 0%

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

Growing snapshot for Nachusa, IL

Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Dixon 1W, Il (6.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.