Cahokia

Sherman County, Illinois, United States

Unlock Minute-by-Minute Forecast

See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.

Current Weather

25°

Overcast

Feels Like: 26°

Min: 23°

Max: 36°

The next few hours will be overcast, with today reaching 36°C and dropping to 25°C. The coming days will be drizzle

Unlock Historical Data

Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

25° 26° 28° 30° 32° 34° 35° 35° 36° 28° 26° 26° 26° 25° 26° 25° 25° 26° 25° 25° 25° 25° 25° 25°
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
Today
Tomorrow

Daylight Hours

06:49

Sunrise

19:00

Sunset

12 hours 11 minutes of sunlight today

Moon

Waxing Crescent

12:35

Moonrise

21:14

Moonset

Daily Forecast

Today

23°
36°

Thursday

25°
35°

Friday

24°
35°

Saturday

24°
36°

Sunday

23°
33°

Monday

21°
29°

Tuesday

18°
27°

Wednesday

18°
28°

Thursday

20°
35°

Friday

17°
27°

Air Quality Data Available

Upgrade to access real-time air quality data for Cahokia.

UV Index

No protection needed
1 Low
Low Extreme

Humidity

88% Humid
Low High

Weather in Cahokia today, September 16, 2026

Cahokia looks cloudy on September 16, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. Cloud leads the morning, peaking close to 100% near 08:00. Sunshine has little room until later in the day.

The temperature range runs from about 23°C up to 36°C. The air stays humid, with relative humidity between 46% and 92% and the peak around 23:00. Winds stay light, near 7.8 km/h by 18:00, so the day feels still more than breezy.

The afternoon keeps an overcast feel, as cloud reaches about 100% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.5 km, with poorer spells close to 11.8 km. Daylight runs from 06:49 to 19:00, lasting 12 hours 11 minutes of sunlight today.

The practical takeaway for Cahokia on September 16, 2026 is a cloudy day that stays usable, just not particularly bright, around 36°C.

Frequently asked questions about weather in Cahokia

How warm does it get in Cahokia?

The warmest month in Cahokia is July, with average high temperatures of 32°C. The average temperature during this period is around 27°C.

How cold does it get in Cahokia?

The coldest month in Cahokia is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.

What is the wettest time of year in Cahokia?

The wettest month in Cahokia is April, with an average of 136mm of precipitation.

What is the driest time of year in Cahokia?

The driest month in Cahokia is December, with an average of 65mm of precipitation.

View full climate insights for Cahokia →

Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)