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Weather in St. Rose, IL · National Weather Service + NOAA

St. Rose has a long growing season

St. Rose has chilly winters and warm summers. A typical July afternoon reaches 88°, a January night drops to 22°, and about 10 inches of snow falls in a normal winter. Normal November highs come to 54°, and lows to 36°.

Winter 42°/25°Spring 66°/45°Summer 87°/66°Fall 68°/46°
Right now
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Sunrise 7:26 am · sunset 5:57 pm

Getting the latest forecast from the National Weather Service…

What stands out about St. Rose’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
A long growing season204 frost-free days, from Apr 6 to Oct 29.Less snow than most of IllinoisAbout 10 inches a winter, less than 2,595 of 2,880 Illinois towns.Warmer summers than most of IllinoisJuly afternoons average 88°, warmer than 2,620 of 2,886 Illinois towns.
A normal year

Where today sits in St. Rose’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
42° / 25°
4 days with an inch or more of snow
Spring
66° / 45°
Last frost around Apr 6
Summer
87° / 66°
32 days reach 90° in a normal year
Fall now
68° / 46°
First frost around Oct 29
Pastthe usual first frost (Oct 29). Last frost next spring: Apr 6
Best months to be outside
AprMaySepOct
Highs of 62–84° and lows of 40° or more
How much snow does St. Rose get?About 10 inches a winter.When is it wettest?May, with 5.0 inches.Is it warmer than it used to be?+1.1° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in St. Rose.

Town Square →
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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for St. Rose itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Highland, IL (8 mi, snow) and Carlyle Rsvr, IL (11 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.