See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
25°
Overcast
Feels Like: 20°
Min: 12°
Max: 28°
The next few hours will be clear, with tomorrow reaching 29°C and dropping to 18°C. The coming days will be mostly cloudy starting in the evening.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:48
Sunrise
19:01
Sunset
Moon
Waxing Crescent
12:42
Moonrise
21:05
Moonset
Daily Forecast
Wednesday
Today
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
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UV Index
Humidity
Weather in Arlington Heights tomorrow, September 17, 2026
Arlington Heights looks cloudy on September 17, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. Expect a grey start, with morning cloud around 100% by 06:00. Outdoor plans early on should not rely on bright skies.
The temperature range runs from about 20°C up to 29°C. Relative humidity sits between 56% and 95%, reaching its peak around 21:00. Winds stay light, near 4.0 km/h by 14:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 90% around 13:00. Outdoor plans may still want a flexible backup. Visibility stays near 16.1 km. Expect sunrise at 06:49, sunset at 18:59, and 12 hours 9 minutes of sunlight today overall.
In short, cloud leads the story in Arlington Heights on September 17, 2026; expect limited sun and a peak around 29°C.
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