Index, WA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Index, WA in one place.
Mostly sunny, with a high near 63. West northwest wind 2 to 10 mph.
Local Weather Overview
This forecast page for Index, 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 16, 2026 3:01 AM PDT.
The active forecast window currently covers Jun 17 to Jun 22, 2026 for Index, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 17 to Jun 22, 2026
- Latest sync
- Jun 16, 2026 3:01 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Index
Monday looks like the warmest upcoming period in Index at 74 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Wednesday at about 2 to 10 mph WNW.
The forecast from Jun 17 through Jun 22 stays mostly dry.
Forecast Details
- Last updated
- Jun 16, 2026 3:01 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
Mostly clear, with a low around 47. East northeast wind 2 to 10 mph.
Sunny, with a high near 71.
Mostly clear, with a low around 53.
Sunny, with a high near 71.
Mostly clear, with a low around 52.
Sunny, with a high near 66.
Mostly clear, with a low around 50.
Sunny, with a high near 68.
Mostly clear, with a low around 52.
Sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 17
|
Mostly Sunny
|
63°F |
2 to 10 mph
WNW
|
|
Wednesday Night
Jun 17
|
Mostly Clear
|
47°F |
2 to 10 mph
ENE
|
|
Thursday
Jun 18
|
Sunny
|
71°F |
2 to 9 mph
N
|
|
Thursday Night
Jun 18
|
Mostly Clear
|
53°F |
3 to 8 mph
E
|
|
Juneteenth
Jun 19
|
Sunny
|
71°F |
2 to 10 mph
W
|
|
Friday Night
Jun 19
|
Mostly Clear
|
52°F |
3 to 10 mph
WSW
|
|
Saturday
Jun 20
|
Sunny
|
66°F |
3 to 10 mph
W
|
|
Saturday Night
Jun 20
|
Mostly Clear
|
50°F |
2 to 10 mph
WSW
|
|
Sunday
Jun 21
|
Sunny
|
68°F |
3 to 9 mph
WSW
|
|
Sunday Night
Jun 21
|
Mostly Clear
|
52°F |
2 to 9 mph
ENE
|
|
Monday
Jun 22
|
Sunny
|
74°F |
3 to 8 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Index.
