Arlington Heights, IL Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Arlington Heights, IL in one place.
Rain showers before 1pm. Mostly cloudy. High near 55, with temperatures falling to around 53 in the afternoon. North northeast wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Arlington Heights, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 9, 2026 2:25 PM CDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Arlington Heights, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 2:25 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Arlington Heights
Monday looks like the warmest upcoming period in Arlington Heights at 78 degrees F.
Friday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Sunday at about 15 to 25 mph SSW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 2:25 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 36. East northeast wind 5 to 10 mph.
Mostly sunny, with a high near 58. East wind 5 to 10 mph, with gusts as high as 20 mph.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a high near 74.
A chance of rain showers before 7pm, then showers and thunderstorms likely. Cloudy, with a low around 62.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 64.
Showers and thunderstorms likely. Mostly cloudy, with a high near 75.
Showers and thunderstorms. Mostly cloudy, with a low around 49.
Showers and thunderstorms likely. Mostly cloudy, with a high near 63.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Rain Showers
|
55°F |
10 mph
NNE
|
|
Friday Night
Apr 10
|
Mostly Clear
|
36°F |
5 to 10 mph
ENE
|
|
Saturday
Apr 11
|
Mostly Sunny
|
58°F |
5 to 10 mph
E
|
|
Saturday Night
Apr 11
|
Chance Showers And Thunderstorms
|
50°F |
10 to 15 mph
SE
|
|
Sunday
Apr 12
|
Chance Rain Showers
|
74°F |
15 to 25 mph
SSW
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely
|
62°F |
20 mph
SW
|
|
Monday
Apr 13
|
Showers And Thunderstorms Likely
|
78°F |
15 to 20 mph
SW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
64°F |
15 mph
SSW
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms Likely
|
75°F |
15 to 20 mph
SW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms
|
49°F |
15 mph
S
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
63°F |
15 mph
S
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
45°F |
10 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Arlington Heights.
