What is the hottest month in Alden, IL?

July is the warmest month, with a normal high of 82°F at Pell Lake.

What is the coldest month in Alden, IL?

January is the coldest month, with a normal low of 13°F.

What is the wettest month in Alden, IL?

June has the most precipitation on average, about 4.73 inches.

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Checked Oct 25, 2026

Alden, IL Climate

1991 to 2020 normals at Pell Lake, 11 mi from the center of Alden, elevation 840 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	29°	13°	1.71 in	--
February	33°	14°	1.50 in	--
March	44°	25°	2.20 in	--
April	57°	35°	3.36 in	--
May	69°	46°	4.28 in	--
June	78°	56°	4.73 in	--
July	82°	59°	4.39 in	--
August	80°	57°	3.88 in	--
September	73°	50°	3.64 in	--
October	61°	39°	2.89 in	--
November	46°	29°	2.33 in	--
December	35°	20°	1.64 in	--
Year	57°		36.55 in	--

Frequently asked questions

What is the hottest month in Alden, IL?: July is the warmest month, with a normal high of 82°F at Pell Lake.
What is the coldest month in Alden, IL?: January is the coldest month, with a normal low of 13°F.
What is the wettest month in Alden, IL?: June has the most precipitation on average, about 4.73 inches.

Today

Alden, IL forecast

Data sources

U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information · Official site
U.S. Climate Normals 1991-2020 (daily) and GHCN-Daily via Access Data ServiceNOAA National Centers for Environmental Information · Official site

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

Climate normals are 30-year averages measured at one weather station, which may be miles from the place named here or at a different elevation.

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