Harman US

Pleasant Prairie, IL Weather & Growing Conditions

Overnight
61°F
Rain Showers Likely
Rain showers likely. Cloudy, with a low around 61. South wind around 15 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 61°F Rain Showers Likely 15 mph S 69%
Wednesday 64°F Scattered Rain Showers then Patchy Drizzle 15 mph SW 45%
Wednesday Night 47°F Patchy Drizzle then Mostly Cloudy 15 mph SW 14%
Thursday 56°F Chance Rain Showers 15 mph W 35%
Thursday Night 38°F Rain Showers Likely 15 mph NW 56%
Friday 48°F Slight Chance Rain Showers then Mostly Cloudy 15 to 20 mph N 16%
Friday Night 33°F Partly Cloudy 10 to 15 mph NW 3%
Saturday 51°F Sunny 5 mph NW 0%
Saturday Night 34°F Partly Cloudy 5 mph W 1%
Sunday 55°F Sunny 5 to 10 mph W 5%
Sunday Night 35°F Mostly Clear 5 mph W 1%
Monday 59°F Sunny 5 to 10 mph SW 0%
Monday Night 39°F Partly Cloudy 5 mph W 1%
Tuesday 60°F Sunny 5 mph W 1%

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

Growing snapshot for Pleasant Prairie, IL

Last spring frost
Apr 30
First fall frost
Oct 21
Growing season
173 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Chicago Waukegan Rgnl Ap, Il (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.