Grandwood Park

What is the climate like in Grandwood Park?

The best time to visit Grandwood Park is typically June – September, with trip comfort peaking in September (7.0/10). Grandwood Park is warmest in July, when daily highs average 78°F (26°C), and coolest in January, when lows fall to about 22°F (-6°C). The wettest month is typically May and the driest is February; the year sees roughly 39 in (981 mm) of precipitation.

• Best time to visitJune – September — comfort peaks in September (7.0/10)
• Warmest monthJuly — average high 78°F (26°C)
• Coolest monthJanuary — average low 22°F (-6°C)
• Wettest monthMay (4.6 in (117 mm))
• Driest monthFebruary (2.1 in (54 mm))
• Annual precipitation39 in (981 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromChicago Waukegan Rgnl AP, 11 km away (1999-2026)