Summit, WA Weather Forecast
Local 7-day forecast
Patchy Fog then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Summit, WA in one place.
Patchy fog before 9am. Mostly sunny, with a high near 71. North northeast wind around 3 mph.
Local Weather Overview
This forecast page for Summit, 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: Oct 15, 2026 8:29 AM PDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Summit, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 8:29 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Summit
Friday looks like the warmest upcoming period in Summit at 73 degrees F.
Saturday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Saturday at about 5 to 9 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 8:29 AM 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
Mostly clear, with a low around 47. Northeast wind around 2 mph.
Mostly sunny. High near 73, with temperatures falling to around 71 in the afternoon. Southwest wind around 2 mph.
A chance of rain after 11pm. Mostly cloudy, with a low around 51. Southwest wind 2 to 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain before 11am. Partly sunny, with a high near 63. Southwest wind 5 to 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 37.
Partly sunny, with a high near 59.
Mostly cloudy, with a low around 40.
Mostly cloudy, with a high near 58.
Mostly cloudy, with a low around 39.
Mostly sunny, with a high near 60.
Partly cloudy, with a low around 38.
A slight chance of rain after 5pm. Mostly sunny, with a high near 61.
A slight chance of rain before 11pm. Mostly cloudy, with a low around 40.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 15
|
Patchy Fog then Mostly Sunny
|
71°F |
3 mph
NNE
|
|
Tonight
Oct 15
|
Mostly Clear
|
47°F |
2 mph
NE
|
|
Friday
Oct 16
|
Mostly Sunny
|
73°F |
2 mph
SW
|
|
Friday Night
Oct 16
|
Chance Light Rain
|
51°F |
2 to 8 mph
SW
|
|
Saturday
Oct 17
|
Chance Light Rain then Partly Sunny
|
63°F |
5 to 9 mph
SW
|
|
Saturday Night
Oct 17
|
Partly Cloudy
|
37°F |
1 to 5 mph
ESE
|
|
Sunday
Oct 18
|
Partly Sunny
|
59°F |
1 to 5 mph
NE
|
|
Sunday Night
Oct 18
|
Mostly Cloudy
|
40°F |
0 to 3 mph
E
|
|
Monday
Oct 19
|
Mostly Cloudy
|
58°F |
2 mph
SW
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
39°F |
2 mph
SSW
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
60°F |
0 to 5 mph
N
|
|
Tuesday Night
Oct 20
|
Partly Cloudy
|
38°F |
0 to 5 mph
NNE
|
|
Wednesday
Oct 21
|
Mostly Sunny then Slight Chance Light Rain
|
61°F |
2 mph
W
|
|
Wednesday Night
Oct 21
|
Slight Chance Light Rain then Mostly Cloudy
|
40°F |
2 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Summit.