Oswego, Illinois vs Forest Hills Climate
98%matchOn climate, Forest Hills is a 98% match for Oswego. Very close: temperatures within 3°F (2°C), with similar rain, humidity and sun.
Oswego gets 39 in (990 mm) of rain a year and Forest Hills 37 in (931 mm). July is the warmest month in both, with highs of 85°F (29°C) in Oswego and 82°F (28°C) in Forest Hills.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
OswegoForest Hillssolid = high, dashed = low
Rain (in per month)
OswegoForest Hills
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Oswego | Forest Hills | Oswego | Forest Hills | Oswego | Forest Hills | |
| Jan | 32°F(0°C) | 31°F(0°C) | 15°F(-9°C) | 17°F(-8°C) | 1.7 in(44 mm) | 2.2 in(56 mm) |
| Feb | 36°F(2°C) | 34°F(1°C) | 19°F(-7°C) | 18°F(-8°C) | 1.6 in(41 mm) | 1.7 in(44 mm) |
| Mar | 48°F(9°C) | 44°F(7°C) | 29°F(-2°C) | 26°F(-4°C) | 2.3 in(59 mm) | 2.3 in(58 mm) |
| Apr | 61°F(16°C) | 57°F(14°C) | 38°F(4°C) | 35°F(2°C) | 4.4 in(113 mm) | 3.6 in(91 mm) |
| May | 73°F(23°C) | 70°F(21°C) | 49°F(9°C) | 46°F(8°C) | 4.8 in(121 mm) | 4.3 in(108 mm) |
| Jun | 82°F(28°C) | 78°F(26°C) | 59°F(15°C) | 56°F(13°C) | 4.9 in(124 mm) | 3.8 in(96 mm) |
| Jul | 85°F(29°C) | 82°F(28°C) | 63°F(17°C) | 60°F(15°C) | 4.0 in(101 mm) | 3.0 in(77 mm) |
| Aug | 83°F(28°C) | 80°F(27°C) | 61°F(16°C) | 58°F(15°C) | 4.0 in(102 mm) | 3.5 in(89 mm) |
| Sep | 77°F(25°C) | 74°F(23°C) | 53°F(12°C) | 51°F(11°C) | 3.5 in(90 mm) | 3.7 in(93 mm) |
| Oct | 64°F(18°C) | 61°F(16°C) | 42°F(5°C) | 40°F(5°C) | 3.0 in(75 mm) | 3.2 in(81 mm) |
| Nov | 49°F(9°C) | 47°F(8°C) | 31°F(-1°C) | 31°F(0°C) | 2.6 in(66 mm) | 2.9 in(73 mm) |
| Dec | 36°F(2°C) | 35°F(2°C) | 20°F(-6°C) | 23°F(-5°C) | 2.1 in(54 mm) | 2.6 in(65 mm) |
1991–2020 averages, by calendar month.