Climate almanac
Algonquin
Illinois, US · 42.17°, -88.29°
What is the climate like in Algonquin?
The best time to visit Algonquin is typically August – September, with trip comfort peaking in September (7.0/10). Algonquin is warmest in July, when daily highs average 83°F (28°C), and coolest in January, when lows fall to about 19°F (-7°C). The wettest month is typically May and the driest is February; the year sees roughly 40 in of precipitation.
- Best time to visitAugust – September — comfort peaks in September (7.0/10)
- Warmest monthJuly — average high 83°F (28°C)
- Coolest monthJanuary — average low 19°F (-7°C)
- Wettest monthMay (4.9 in)
- Driest monthFebruary (2.0 in)
- Annual precipitation40 in