Hillside, Illinois Climate
United States
Pop. 8,155 Elev. 203 m / 666 ft
TZ: America/Chicago (UTC-5) ·
Dry and warm, Hillside sees July highs of 85°F (29°C) and cold January lows of 16°F (-9°C). Humidity pushes the summer feels-like temperature to 94°F (34°C), while wind chill can drive winter lows to 6°F (-14°C). Expect around 45 rainy days annually (32.0 in / 812 mm total), with snow on 4 days and 36 in (926 mm) of annual accumulation. The city averages 113 sunny days per year and around 32 thunderstorm days. Ocean water temperatures reach 75°F (24°C) in summer.
| Temperature | 85°F (29°C) high | 16°F (-9°C) low |
| Feels like | 94°F (34°C) high | 6°F (-14°C) low |
| Rain | 45 days | 32.0 in (812 mm) /yr |
| Snow | 4 days | 36.5 in (926 mm) /yr |
| Sky | 113 sunny | 32 stormy |
| Wind | 2.6 mph (1.1 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Sep, Oct
Sky & Air by Month
Cloud cover (%)
55
Jan 66
Feb 58
Mar 67
Apr 62
May 53
Jun 61
Jul 51
Aug 34
Sep 46
Oct 58
Nov 78
Dec Humidity (%)
59
Jan 66
Feb 60
Mar 62
Apr 67
May 66
Jun 73
Jul 72
Aug 69
Sep 68
Oct 67
Nov 73
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 7 mi Chicago O'Hare International Airport (ORD)
Ski resort 11 mi
National park 20 mi Historic Pullman Foundation Exhibit Hall
Hospital 2 mi Kindred Hospital Chicago Northlake
Hiking trail 3 mi Brown Unpaved Spur
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 31°F -1°C | 16°F -9°C | 1.3 in 32 mm | 4.5 in114 mm | 13 |
| February | 34°F 1°C | 19°F -7°C | 0.1 in 3 mm | 9.2 in233 mm | 3 |
| March | 56°F 14°C | 35°F 2°C | 3.2 in 82 mm | 4.7 in119 mm | 9 |
| April | 60°F 15°C | 42°F 6°C | 2.9 in 73 mm | 0.2 in5 mm | 5 |
| May | 66°F 19°C | 49°F 9°C | 3.9 in 98 mm | — | 8 |
| June | 83°F 28°C | 64°F 18°C | 4.9 in 124 mm | — | 10 |
| July | 85°F 29°C | 69°F 21°C | 5.1 in 130 mm | — | 8 |
| August | 80°F 27°C | 64°F 18°C | 3.5 in 88 mm | — | 14 |
| September | 77°F 25°C | 57°F 14°C | 1.6 in 40 mm | — | 18 |
| October | 65°F 18°C | 49°F 10°C | 2.6 in 67 mm | — | 14 |
| November | 49°F 10°C | 36°F 2°C | 1.2 in 30 mm | 10.8 in273 mm | 9 |
| December | 35°F 2°C | 21°F -6°C | 1.7 in 44 mm | 7.2 in183 mm | 2 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 1 |
| February | 3 | 0 |
| March | 9 | 4 |
| April | 5 | 1 |
| May | 8 | 3 |
| June | 10 | 5 |
| July | 8 | 7 |
| August | 14 | 4 |
| September | 18 | 4 |
| October | 14 | 2 |
| November | 9 | 0 |
| December | 2 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 37°F 3°C | 33°F 0°C |
| February | 35°F 1°C | 32°F 0°C |
| March | 37°F 3°C | 37°F 3°C |
| April | 44°F 7°C | 46°F 8°C |
| May | 49°F 9°C | 54°F 12°C |
| June | 67°F 20°C | 66°F 19°C |
| July | 75°F 24°C | 77°F 25°C |
| August | 74°F 24°C | 74°F 23°C |
| September | 69°F 21°C | 67°F 20°C |
| October | 67°F 20°C | 60°F 15°C |
| November | 52°F 11°C | 45°F 7°C |
| December | 43°F 6°C | 34°F 1°C |