United States · 1991–2020 normal

Bethalto in
September.

Typical September weather in Bethalto: 26.6°C by day, 16.1°C at night, 85 mm of rain over 5.8 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high26.6°C
Typical low16.1°C
Rain85 mm
Wet days5.8

Comfort score 80 this month, the highest of the year. Daylight is calculated as 12 h 24 from latitude 38.91°.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4233662
NOAA station
USC00110137 · ALTON - MELVIN PRICE L&D
Station distance
10.5 km from the place centre
Coverage
Strong coverage · 26 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.