Brennan, WA Weather Forecast
Local 7-day forecast
Light Rain Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Brennan, WA in one place.
Rain likely. Mostly cloudy, with a high near 71. South wind 5 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Brennan, 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: Jul 24, 2026 11:24 AM PDT.
The active forecast window currently covers Jul 26 to Jul 30, 2026 for Brennan, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 26 to Jul 30, 2026
- Latest sync
- Jul 24, 2026 11:24 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Brennan
Monday looks like the warmest upcoming period in Brennan at 74 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Sunday at about 5 to 9 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 24, 2026 11:24 AM PDT
- Coverage
- 6 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
A chance of rain before 11pm, then areas of fog and a slight chance of rain. Mostly cloudy, with a low around 56. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Patchy fog before 8am. Mostly sunny, with a high near 74.
Patchy fog between 11pm and 5am, then a chance of rain. Partly cloudy, with a low around 56.
A chance of rain before 5pm. Mostly sunny, with a high near 74.
Areas of fog after 1am. Partly cloudy, with a low around 55.
Patchy fog before 8am. Mostly sunny, with a high near 74.
Patchy fog between midnight and 5am. Mostly clear, with a low around 54.
Sunny, with a high near 73.
Mostly clear, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Jul 26
|
Light Rain Likely
|
71°F |
5 to 9 mph
S
|
|
Sunday Night
Jul 26
|
Chance Light Rain then Areas Of Fog
|
56°F |
0 to 5 mph
SW
|
|
Monday
Jul 27
|
Patchy Fog then Mostly Sunny
|
74°F |
1 to 6 mph
SSW
|
|
Monday Night
Jul 27
|
Patchy Fog then Chance Light Rain
|
56°F |
0 to 3 mph
SSW
|
|
Tuesday
Jul 28
|
Chance Light Rain
|
74°F |
3 to 7 mph
S
|
|
Tuesday Night
Jul 28
|
Partly Cloudy then Areas Of Fog
|
55°F |
0 to 6 mph
SW
|
|
Wednesday
Jul 29
|
Patchy Fog then Mostly Sunny
|
74°F |
0 to 6 mph
SSW
|
|
Wednesday Night
Jul 29
|
Mostly Clear then Patchy Fog
|
54°F |
1 to 5 mph
S
|
|
Thursday
Jul 30
|
Sunny
|
73°F |
2 to 7 mph
SSW
|
|
Thursday Night
Jul 30
|
Mostly Clear
|
54°F |
2 to 6 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Brennan.