Brennan, WA Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Brennan, WA in one place.
A chance of showers and thunderstorms before 5pm, then a chance of rain. Partly sunny, with a high near 64. Southwest wind around 16 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
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: Jun 9, 2026 4:02 PM PDT.
The active forecast window currently covers Jun 9 to Jun 15, 2026 for Brennan, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 15, 2026
- Latest sync
- Jun 9, 2026 4:02 PM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Brennan
Monday looks like the warmest upcoming period in Brennan at 84 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for This Afternoon at about 16 mph SW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 4:02 PM PDT
- Coverage
- 8 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. Mostly cloudy, with a low around 50. Southwest wind 5 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 66. South southwest wind around 6 mph.
Partly cloudy, with a low around 48. South southeast wind around 5 mph.
Sunny, with a high near 69. South wind around 6 mph.
Mostly clear, with a low around 49.
Sunny, with a high near 71.
Clear, with a low around 52.
Sunny, with a high near 78.
Mostly clear, with a low around 58.
Sunny, with a high near 83.
Mostly clear, with a low around 61.
Mostly sunny, with a high near 84.
Partly cloudy, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jun 9
|
Chance Showers And Thunderstorms
|
64°F |
16 mph
SW
|
|
Tonight
Jun 9
|
Chance Light Rain
|
50°F |
5 to 16 mph
SW
|
|
Wednesday
Jun 10
|
Mostly Sunny
|
66°F |
6 mph
SSW
|
|
Wednesday Night
Jun 10
|
Partly Cloudy
|
48°F |
5 mph
SSE
|
|
Thursday
Jun 11
|
Sunny
|
69°F |
6 mph
S
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
49°F |
1 to 6 mph
S
|
|
Friday
Jun 12
|
Sunny
|
71°F |
0 to 7 mph
WSW
|
|
Friday Night
Jun 12
|
Clear
|
52°F |
0 to 5 mph
W
|
|
Saturday
Jun 13
|
Sunny
|
78°F |
0 to 8 mph
NW
|
|
Saturday Night
Jun 13
|
Mostly Clear
|
58°F |
0 to 7 mph
NW
|
|
Sunday
Jun 14
|
Sunny
|
83°F |
0 to 7 mph
NW
|
|
Sunday Night
Jun 14
|
Mostly Clear
|
61°F |
0 to 6 mph
WNW
|
|
Monday
Jun 15
|
Mostly Sunny
|
84°F |
0 to 5 mph
W
|
|
Monday Night
Jun 15
|
Partly Cloudy
|
62°F |
5 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Brennan.