Index, WA Weather Forecast
Local 7-day forecast
Rain Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Index, WA in one place.
Rain likely. Mostly cloudy, with a high near 51.
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: Apr 14, 2026 12:26 PM PDT.
The active forecast window currently covers Apr 19 to Apr 20, 2026 for Index, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 20, 2026
- Latest sync
- Apr 14, 2026 12:26 PM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Index
Sunday looks like the warmest upcoming period in Index at 51 degrees F.
Sunday Night is the coolest period ahead with temperatures near 38 degrees F.
The strongest winds are forecast for Sunday at about 7 to 10 mph SE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 14, 2026 12:26 PM PDT
- Coverage
- 3 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
Rain likely before 2am, then rain and snow likely. Mostly cloudy, with a low around 38.
Rain and snow likely. Mostly cloudy, with a high near 50.
A chance of rain. Mostly cloudy, with a low around 39.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Rain Likely
|
51°F |
7 to 10 mph
SE
|
|
Sunday Night
Apr 19
|
Rain Likely then Rain And Snow Likely
|
38°F |
7 mph
SSW
|
|
Monday
Apr 20
|
Rain And Snow Likely
|
50°F |
8 mph
W
|
|
Monday Night
Apr 20
|
Chance Light Rain
|
39°F |
5 to 8 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Index.
