Oregon, Illinois Climate

United States

Pop. 3,580 Elev. 218 m / 715 ft TZ: America/Chicago (UTC-5) ·

Oregon has a dry climate with warm summers reaching 85°F (29°C) in July and cold winters averaging 15°F (-9°C) in January. Humidity pushes the summer feels-like temperature to 94°F (34°C), while wind chill can drive winter lows to 6°F (-14°C). Rain falls on about 43 days per year (32.5 in / 825 mm total), with snow on 6 days and 34 in (872 mm) of annual accumulation. The city averages 118 sunny days per year and around 34 thunderstorm days. Nearby lake water reaches 77°F (25°C) in summer.

Temperature 85°F (29°C) high 15°F (-10°C) low
Feels like 94°F (35°C) high 6°F (-15°C) low
Rain 43 days 32.5 in (825 mm) /yr
Snow 6 days 34.3 in (872 mm) /yr
Sky 118 sunny 34 stormy
Wind 2.6 mph (1.2 m/s) avg

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Monthly Climate Chart

↓ Monthly data table
Best months to visit: Apr, May, Sep, Oct

Sky & Air by Month

Cloud cover (%)
53
Jan
63
Feb
54
Mar
68
Apr
58
May
53
Jun
60
Jul
53
Aug
37
Sep
45
Oct
56
Nov
76
Dec
Humidity (%)
60
Jan
66
Feb
59
Mar
60
Apr
60
May
65
Jun
74
Jul
74
Aug
67
Sep
66
Oct
67
Nov
76
Dec

Weather Days by Month

↓ Weather days table

Water Temperatures

↓ Water temperatures table

Cities with Similar Climate

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Nearby Cities

Nearby

Commercial airport 17 mi Chicago Rockford International Airport (RFD)
Ski resort 52 mi
National park 91 mi Historic Pullman Foundation Exhibit Hall
Hospital 14 mi Katherine Shaw Bethea Hospital
Hiking trail 3 mi Forest Ridge

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Monthly Weather Data

↑ See chart
Month Avg High Avg Low Rainfall Snowfall Sunny Days
January 30°F -1°C 15°F -10°C 1.0 in 26 mm 2.6 in65 mm 13
February 34°F 1°C 18°F -8°C 0.1 in 3 mm 7.2 in183 mm 5
March 56°F 13°C 34°F 1°C 3.5 in 89 mm 6.6 in168 mm 10
April 62°F 16°C 42°F 6°C 3.3 in 85 mm 0.0 in0 mm 4
May 70°F 21°C 50°F 10°C 3.2 in 82 mm 11
June 84°F 29°C 64°F 18°C 4.0 in 102 mm 10
July 85°F 29°C 69°F 21°C 6.2 in 158 mm 7
August 80°F 26°C 63°F 17°C 4.7 in 118 mm 14
September 78°F 26°C 56°F 13°C 2.0 in 50 mm 18
October 67°F 19°C 49°F 9°C 1.6 in 41 mm 12
November 50°F 10°C 35°F 1°C 1.1 in 28 mm 10.6 in268 mm 10
December 33°F 1°C 19°F -7°C 1.7 in 43 mm 7.4 in187 mm 4

Weather Days by Month

↑ See chart
Month Sunny Days Storm Days
January 13 1
February 5 0
March 10 4
April 4 1
May 11 2
June 10 4
July 7 8
August 14 7
September 18 5
October 12 1
November 10 0
December 4 1

Water Temperatures Data

↑ See chart
Month Lake Avg High
January 32°F 0°C
February 32°F 0°C
March 38°F 3°C
April 49°F 9°C
May 58°F 15°C
June 70°F 21°C
July 77°F 25°C
August 74°F 23°C
September 67°F 19°C
October 59°F 15°C
November 42°F 6°C
December 32°F 0°C