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Weather in Rock Grove Township, IL · National Weather Service + NOAA

Rock Grove Township is snow country

Rock Grove Township has cold, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 12°, and about 37 inches of snow falls in a normal winter. In November, a normal day reaches 46° and a normal night drops to 29°.

Winter 31°/16°Spring 58°/37°Summer 81°/60°Fall 60°/40°
Right now
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Sunrise 7:34 am · sunset 5:48 pm

Getting the latest forecast from the National Weather Service…

What stands out about Rock Grove Township’s weather

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

Climate →
Snow countryAbout 37 inches a winter, more than 2,679 of 2,880 Illinois towns.Among Illinois’s coldest wintersJanuary nights average 12°, colder than 2,826 of 2,886 Illinois towns.Cool summersJuly afternoons average 83°, cooler than 2,752 of 2,886 Illinois towns.A short growing season165 frost-free days, from Apr 29 to Oct 12.
A normal year

Where today sits in Rock Grove Township’s year

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

Full climate →
Winter
31° / 16°
13 days with an inch or more of snow
Spring
58° / 37°
Last frost around Apr 29
Summer
81° / 60°
12 days reach 90° in a normal year
Fall now
60° / 40°
First frost around Oct 12
Pastthe usual first frost (Oct 12). Last frost next spring: Apr 29
Best months to be outside
MayJunJulAugSep
Highs of 62–84° and lows of 40° or more
How much snow does Rock Grove Township get?About 37 inches a winter.When is it wettest?June, with 5.6 inches.Is it warmer than it used to be?+1.3° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Rock Grove Township.

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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 Rock Grove Township itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Brodhead WWTP, WI (11 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.