Climate almanac
Watseka
Illinois, United States · 40.78°, -87.74°
What is the climate like in Watseka?
The best time to visit Watseka is typically June – September, with trip comfort peaking in September (7.3/10). Watseka is warmest in July, when daily highs average 85°F (29°C), and coolest in January, when lows fall to about 22°F (-5°C). The wettest month is typically May and the driest is December; the year sees roughly 43 in (1083 mm) of precipitation.
- Best time to visitJune – September — comfort peaks in September (7.3/10)
- Warmest monthJuly — average high 85°F (29°C)
- Coolest monthJanuary — average low 22°F (-5°C)
- Wettest monthMay (5.0 in (127 mm))
- Driest monthDecember (2.5 in (64 mm))
- Annual precipitation43 in (1083 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromWatseka Public Works, 1 km away (1893-2020)