Climate almanac
Bethalto
Illinois, United States · 38.91°, -90.04°
What is the weather like in Bethalto in January?
In January, Bethalto is typically 39°F (4°C) during the day and 25°F (-4°C) at night. The month brings about 2.9 in (74 mm) of precipitation in total. Snowfall averages about 4.6 in (117 mm) over the month.
- Average high39°F (4°C)
- Average low25°F (-4°C)
- Precipitation2.9 in (74 mm)
- Clear or mostly clear days7
- Snowfall4.6 in (117 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)