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Mounds, IL Climate

1991 to 2020 normals at Cairo 3n, 5 mi from the center of Mounds, elevation 313 ft.

Average weather by month

Select a month for daily normals and last year's weather

MonthRangeHighLowPrecip.Snow
January43°26°3.80 in--
February48°30°3.88 in--
March59°38°4.85 in--
April70°48°5.38 in--
May78°58°5.08 in--
June86°66°4.37 in--
July89°70°4.10 in--
August88°68°3.18 in--
September82°60°3.51 in--
October71°48°4.14 in--
November58°37°4.46 in--
December47°30°4.25 in--
Year68°51.00 in--

Frequently asked questions

What is the hottest month in Mounds, IL?
July is the warmest month, with a normal high of 89°F at Cairo 3n.
What is the coldest month in Mounds, IL?
January is the coldest month, with a normal low of 26°F.
What is the wettest month in Mounds, IL?
April has the most precipitation on average, about 5.38 inches.