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Hillcrest, IL Weather & Growing Conditions

Overnight
63°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 63, with temperatures rising to around 65 overnight. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 63°F Showers And Thunderstorms 10 mph ESE 97%
Saturday 78°F Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 10 mph ESE 100%
Saturday Night 61°F Showers And Thunderstorms 5 to 10 mph E 94%
Sunday 69°F Showers And Thunderstorms Likely 10 to 15 mph NNE 57%
Sunday Night 54°F Chance Rain Showers 15 mph NE 34%
Monday 64°F Chance Rain Showers 15 mph ENE 45%
Monday Night 49°F Slight Chance Rain Showers 10 to 15 mph NE 18%
Tuesday 63°F Slight Chance Rain Showers 10 to 15 mph NE 15%
Tuesday Night 47°F Partly Cloudy 5 to 15 mph NE 11%
Wednesday 66°F Mostly Sunny 10 to 15 mph NE 3%
Wednesday Night 49°F Partly Cloudy 5 to 10 mph NE 1%
Thursday 68°F Partly Sunny 5 to 10 mph NNE 4%
Thursday Night 50°F Partly Cloudy 0 to 5 mph NE 4%
Friday 71°F Mostly Sunny 5 to 10 mph NE 3%

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

Growing snapshot for Hillcrest, IL

Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
168 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Rochelle, Il (2.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.