United States · 1991–2020 normal

Oak Brook in
August.

Typical August weather in Oak Brook: 29.4°C by day, 16.7°C at night, 106 mm of rain over 7.7 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high29.4°C
Typical low16.7°C
Rain106 mm
Wet days7.7

Comfort score 65 this month (September leads the year at 79). Daylight is calculated as 13 h 52 from latitude 41.83°. Open-water sea temperature is 22.5°C (26 km from the place centre).

Event window

Warm sea in August

The nearest open-water NOAA OISST 1991–2020 cell averages 22.5°C in August. A sheltered bay can run warmer than that open-water cell.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4904277
NOAA station
USC00119221 · WHEATON 3 SE
Station distance
12.1 km from the place centre
Coverage
Good coverage · 16 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.