| National Weather Service Forecast for:
Arlington Heights IL Issued by: National Weather Service Chicago, IL |
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| Updated: 9:46 am CDT May 4, 2026 | ||||||||||||||||||
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| This Afternoon |
Sunny, with a high near 79. Breezy, with a west southwest wind around 20 mph, with gusts as high as 30 mph. |
| Tonight |
Scattered showers and thunderstorms before 3am, then isolated showers between 3am and 4am. Mostly cloudy, with a low around 50. West southwest wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%. |
| Tuesday |
A 20 percent chance of showers after 7am. Mostly cloudy, with a high near 56. North northwest wind 5 to 10 mph. |
| Tuesday Night |
Cloudy, then gradually becoming partly cloudy, with a low around 41. North northwest wind around 5 mph, with gusts as high as 10 mph. |
| Wednesday |
Partly sunny, with a high near 57. North northwest wind 5 to 10 mph, with gusts as high as 15 mph. |
| Wednesday Night |
Mostly cloudy, with a low around 40. |
| Thursday |
Partly sunny, with a high near 59. |
| Thursday Night |
Mostly cloudy, with a low around 43. |
| Friday |
Mostly sunny, with a high near 62. |
| Friday Night |
Partly cloudy, with a low around 42. |
| Saturday |
Sunny, with a high near 67. |
| Saturday Night |
Partly cloudy, with a low around 47. |
| Sunday |
Mostly sunny, with a high near 65. |
Forecast from NOAA-NWS for Arlington Heights IL.
