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Weather in Herrin, IL · National Weather Service + NOAA

Herrin has milder winters than most of Illinois

Herrin has chilly winters and warm summers. A typical July afternoon reaches 88°, a January night drops to 25°, and about 10 inches of snow falls in a normal winter. Normal November highs come to 56°, and lows to 36°.

Winter 44°/27°Spring 67°/45°Summer 87°/65°Fall 69°/46°
Right now
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Sunrise 7:22 am · sunset 5:56 pm

Getting the latest forecast from the National Weather Service…

What stands out about Herrin’s weather

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

Climate →
Milder winters than most of IllinoisJanuary nights average 25°, milder than 2,803 of 2,886 Illinois towns.Less snow than most of IllinoisAbout 10 inches a winter, less than 2,669 of 2,880 Illinois towns.Warmer summers than most of IllinoisJuly afternoons average 88°, warmer than 2,686 of 2,886 Illinois towns.Wetter than most of Illinois47 inches of rain and melted snow a year, more than 2,775 of 2,886 Illinois towns.
A normal year

Where today sits in Herrin’s year

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

Full climate →
Winter
44° / 27°
4 days with an inch or more of snow
Spring
67° / 45°
Last frost around Apr 9
Summer
87° / 65°
38 days reach 90° in a normal year
Fall now
69° / 46°
First frost around Oct 22
Pastthe usual first frost (Oct 22). Last frost next spring: Apr 9
Best months to be outside
AprMaySepOct
Highs of 62–84° and lows of 40° or more
How much snow does Herrin get?About 10 inches a winter.When is it wettest?April, with 5.4 inches.Is it warmer than it used to be?+0.9° vs. the 20th century.

Weather talk

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

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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 Herrin itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Plumfield, IL (7 mi, snow) and Carbondale Sewage Plt, IL (9 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.