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Millbrook, IL Climate

1991 to 2020 normals at Chicago Aurora MUNI AP, 13 mi from the center of Millbrook, elevation 710 ft.

Average weather by month

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

MonthRangeHighLowPrecip.Snow
January31°15°1.30 in--
February35°18°1.41 in--
March48°28°2.21 in--
April60°37°3.60 in--
May72°49°4.06 in--
June81°59°3.98 in--
July84°62°3.71 in--
August82°60°3.35 in--
September76°52°3.01 in--
October63°41°3.23 in--
November48°29°2.30 in--
December36°21°1.68 in--
Year60°33.84 in--

Frequently asked questions

What is the hottest month in Millbrook, IL?
July is the warmest month, with a normal high of 84°F at Chicago Aurora MUNI AP.
What is the coldest month in Millbrook, IL?
January is the coldest month, with a normal low of 15°F.
What is the wettest month in Millbrook, IL?
May has the most precipitation on average, about 4.06 inches.