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Weather · Illinois

Chicago Weather in October 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 · October 2026 · Recorded days: 4

18°10°

Light drizzle

Warmest day
20°
October 14
Coldest night
4°
October 18
Total precipitation
23.7 mm
Wet days
1
Dry days
3
Recorded days
4

Across the 4 recorded days of October 2026 in Chicago, the average high was 18°C and the average low 10°C. The warmest day was October 14 (20°C) and the coldest night October 18 (4°C). Total precipitation was 23.7 mm, with 1 mm or more on 1 days. The month is still in progress; each day is added once it ends.

October 2026: day by day

Days with a dashed border are forecasts.

Full archive
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  13. 13
  14. 1420° 14°
  15. 1519° 15°
  16. 1615° 7°
  17. 17
  18. 1818° 4°
  19. 1919° 5°
  20. 2021° 5°
  21. 2121° 12°
  22. 2222° 14°
  23. 2323° 14°
  24. 2423° 15°
  25. 2519° 12°
  26. 2618° 11°
  27. 2716° 12°
  28. 2814° 12°
  29. 2916° 13°
  30. 3021° 16°
  31. 3116° 13°

Frequently asked questions

How many days did it rain in Chicago in October 2026?
1 mm or more of precipitation was recorded on 1 days; the monthly total was 23.7 mm.
What was the warmest day in Chicago in October 2026?
The warmest day was October 14 (20°C) and the coldest night October 18 (4°C).
Where do the archive values come from?
They are the last update we made for that day from Open-Meteo weather model data. They are not official weather station measurements, so small differences are possible.

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