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Arlington Heights climate
Typical historical weather for Arlington Heights, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for Arlington Heights.
Annual average
9.4°C
across all months
Warmest month
23.5°C
Aug average high
Coolest month
-0.9°C
Feb average low
Annual rainfall
2578mm
total per year
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
● Avg high● Avg low▮ Rainfall
Records on file
Hottest day
41.4°C
28 June 2021
Coldest day
-20.7°C
13 January 2024
Wettest day
99.1mm
10 December 2025
Windiest day
4.9m/s
14 October 2016
See the detail: Arlington Heights on 10 December 2025.