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Brownstown, IL Climate

1991 to 2020 normals at Brownstown 4 SW, 2.6 mi from the center of Brownstown, elevation 530 ft.

Average weather by month

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

MonthRangeHighLowPrecip.Snow
January37°21°2.82 in--
February42°25°2.41 in--
March52°35°3.17 in--
April65°45°4.39 in--
May75°55°5.34 in--
June84°65°4.13 in--
July87°67°3.74 in--
August86°64°3.15 in--
September80°56°3.38 in--
October67°45°2.89 in--
November53°36°3.63 in--
December42°27°2.15 in--
Year64°41.20 in--

Frequently asked questions

What is the hottest month in Brownstown, IL?
July is the warmest month, with a normal high of 87°F at Brownstown 4 SW.
What is the coldest month in Brownstown, IL?
January is the coldest month, with a normal low of 21°F.
What is the wettest month in Brownstown, IL?
May has the most precipitation on average, about 5.34 inches.