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Weather · Illinois

Chicago Weather on Wednesday, October 21, 2026

  1. TodayOctober 1919° 5°
  2. TomorrowOctober 2021° 5°
  3. WedOctober 2121° 12°
  4. ThuOctober 2222° 14°
  5. FriOctober 2323° 14°
  6. SatOctober 2423° 15°
  7. SunOctober 2519° 12°
  8. MonOctober 2618° 11°
  9. TueOctober 2716° 12°
  10. WedOctober 2814° 12°
  11. ThuOctober 2916° 13°
  12. FriOctober 3021° 16°
  13. SatOctober 3116° 13°
  14. SunNovember 115° 6°

Chicago · Wednesday, October 21 2026

21°12°

Clear

High 21°, low 12°

Chance of rain
0%
No rain
Wind
7 km/h
south
UV index
4
Moderate
Sunrise
07:10
Sunset 18:00
Day length
10 h 50 min
Moon
Waxing gibbous
81% illuminated

Updated: · Source: Open-Meteo

Forecast for Chicago on Wednesday, October 21, 2026: clear, with a high of 21°C and a low of 12°C. No significant rain is expected (0% chance). Wind from the south at up to 7 km/h. Sunrise is at 07:10 and sunset at 18:00; day length 10 h 50 min. Temperatures similar to the previous day. Temperatures are close to the 7-day average. The best time to be outdoors looks like 08:00–19:00.

What to wear and what to watch out for

  • Cool in the morning and evening: dress in layers and bring a sweater or jacket.
  • A good day for outdoor activities.

Wednesday, October 21: hour by hour

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Weather nearby on October 21

Frequently asked questions

Will it rain in Chicago on Wednesday, October 21, 2026?
Most likely not: the chance of rain is 0%.
What will the temperature be in Chicago on Wednesday, October 21, 2026?
A high of 21°C and a low of 12°C are expected. Conditions: clear.
What time are sunrise and sunset in Chicago on October 21, 2026?
Sunrise is at 07:10 and sunset at 18:00 (local time); day length 10 h 50 min.
How reliable is this forecast?
Forecasts for the first 3 days are usually highly accurate; this page is updated about every 30 minutes.

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