Peoria Records Third Warmest October in History
Unseasonably high temperatures have marked the month, breaking historical records for the central Illinois city.
Updated on Oct. 27, 2026 in Current Conditions
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Peoria has recorded its third warmest October in history with an average temperature of 61.8 degrees through October 25, 2026. This average is 5.6 degrees higher than the historical norm for the region.
Why it matters
The sustained warm and dry conditions have resulted in near-record temperatures, highlighting an unusual weather pattern for late October. The city is currently tracking toward one of its two warmest Octobers on record.
Peoria has experienced 21 days with temperatures at or above 70 degrees, the fifth highest total since record-keeping began in 1883. Forecasts suggest the city may reach 26 days at or above 70 degrees by October 31, 2026.
The details
Central Illinois has been under the influence of unseasonably warm and dry weather for two weeks. Persistent conditions have kept temperatures at or above 70 degrees for 21 days so far this month.
Timeline
1883: Start of record-keeping for October temperature data.
1963: Record set for 26 days at or above 70 degrees.
October 25, 2026: Measurement date for record-breaking average temperature.
October 26, 2026: Measurement date for 21 days at or above 70 degrees.
October 31, 2026: Projected end date for current warm temperature pattern.
Seasonal Patterns
Peoria is currently tracking toward the record set in 1963 of 26 days at or above 70 degrees. This period of warmth represents a notable departure from historical averages, as temperatures are expected to remain 10 to 20 degrees above the norm through the end of the month.
Residents should monitor local temperature forecasts as the unusually warm weather is expected to continue through the end of October. Stay hydrated and be aware that these persistent dry conditions can influence outdoor fire safety and garden care.
The takeaway
The sustained warmth through late October demonstrates a significant shift from traditional autumn weather in central Illinois. Residents can manage the ongoing heat by adjusting daily routines to account for the unseasonably high temperatures.
What happens next
Peoria is expected to reach 26 days at or above 70 degrees by October 31, 2026.
Further reading
For more on the current climate trends in the area, visit the Peoria Current Conditions page.
Source note: This article includes information reported by WMBD 31 Peoria.
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Do you feel this year's unusually warm October makes you less prepared for the coming winter?
