Climate almanac
Pontoon Beach
Illinois, US · 38.73°, -90.08°
What is the climate like in Pontoon Beach?
The best time to visit Pontoon Beach is typically September – October, with trip comfort peaking in September (7.1/10). Pontoon Beach is warmest in July, when daily highs average 88°F (31°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically April and the driest is December; the year sees roughly 46 in of precipitation.
- Best time to visitSeptember – October — comfort peaks in September (7.1/10)
- Warmest monthJuly — average high 88°F (31°C)
- Coolest monthJanuary — average low 26°F (-3°C)
- Wettest monthApril (5.5 in)
- Driest monthDecember (2.5 in)
- Annual precipitation46 in