Arlington Heights, WA Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Arlington Heights, WA in one place.
Rain before 11am, then a chance of showers and thunderstorms between 11am and noon, then patchy fog and a chance of showers and thunderstorms between noon and 2pm, then a slight chance of rain between 2pm and 4pm. Mostly cloudy, with a high near 67. West southwest wind around 2 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Arlington Heights, WA 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: Aug 28, 2026 4:38 PM PDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Arlington Heights, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 4:38 PM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Arlington Heights
Monday looks like the warmest upcoming period in Arlington Heights at 75 degrees F.
Saturday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Tuesday Night at about 5 to 13 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 28, 2026 4:38 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- SEW
- Radar station
- KATX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 49. Northeast wind around 2 mph.
Mostly cloudy, with a high near 70. South wind around 3 mph.
Mostly cloudy, with a low around 49.
Mostly sunny, with a high near 75.
Mostly cloudy, with a low around 51.
A chance of rain after 5pm. Partly sunny, with a high near 74.
Rain likely. Mostly cloudy, with a low around 53.
Rain. Mostly cloudy, with a high near 67.
Rain. Cloudy, with a low around 50.
Rain likely. Mostly cloudy, with a high near 69.
A chance of rain. Mostly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Chance Showers And Thunderstorms
|
67°F |
2 mph
WSW
|
|
Saturday Night
Aug 29
|
Mostly Cloudy
|
49°F |
2 mph
NE
|
|
Sunday
Aug 30
|
Mostly Cloudy
|
70°F |
3 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Cloudy
|
49°F |
3 mph
NNE
|
|
Monday
Aug 31
|
Mostly Sunny
|
75°F |
1 to 6 mph
NW
|
|
Monday Night
Aug 31
|
Mostly Cloudy
|
51°F |
1 to 6 mph
NNE
|
|
Tuesday
Sep 1
|
Partly Sunny then Chance Light Rain
|
74°F |
1 to 5 mph
S
|
|
Tuesday Night
Sep 1
|
Rain Likely
|
53°F |
5 to 13 mph
S
|
|
Wednesday
Sep 2
|
Rain
|
67°F |
6 to 12 mph
SSE
|
|
Wednesday Night
Sep 2
|
Light Rain
|
50°F |
5 to 12 mph
SE
|
|
Thursday
Sep 3
|
Light Rain Likely
|
69°F |
1 to 5 mph
S
|
|
Thursday Night
Sep 3
|
Chance Light Rain
|
49°F |
3 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Arlington Heights.