Index, WA Weather Forecast
Local 7-day forecast
Mostly Cloudy then Rain Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Index, WA in one place.
Rain likely after 1pm. Mostly cloudy. High near 56, with temperatures falling to around 53 in the afternoon. East wind 2 to 7 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 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 8, 2026 12:59 AM PDT.
The active forecast window currently covers Jun 8 to Jun 14, 2026 for Index, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 8 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 12:59 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Index
Sunday looks like the warmest upcoming period in Index at 78 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Tuesday Night at about 6 to 12 mph WSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 12:59 AM PDT
- Coverage
- 7 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. Cloudy. Low around 45, with temperatures rising to around 48 overnight. South wind 3 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Rain before 11am, then showers and thunderstorms between 11am and 5pm, then rain. Cloudy, with a high near 50. West wind around 9 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Rain. Cloudy, with a low around 43. West southwest wind 6 to 12 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Rain likely before 5pm. Mostly cloudy, with a high near 53. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 42.
Sunny, with a high near 61.
Mostly clear, with a low around 46.
Sunny, with a high near 66.
Mostly clear, with a low around 51.
Sunny, with a high near 74.
Mostly clear, with a low around 56.
Sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jun 8
|
Mostly Cloudy then Rain Likely
|
56°F |
2 to 7 mph
E
|
|
Monday Night
Jun 8
|
Rain
|
45°F |
3 to 8 mph
S
|
|
Tuesday
Jun 9
|
Showers And Thunderstorms
|
50°F |
9 mph
W
|
|
Tuesday Night
Jun 9
|
Rain
|
43°F |
6 to 12 mph
WSW
|
|
Wednesday
Jun 10
|
Light Rain Likely
|
53°F |
8 mph
W
|
|
Wednesday Night
Jun 10
|
Partly Cloudy
|
42°F |
2 to 8 mph
SSW
|
|
Thursday
Jun 11
|
Sunny
|
61°F |
2 to 9 mph
SW
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
46°F |
3 to 9 mph
NNE
|
|
Friday
Jun 12
|
Sunny
|
66°F |
2 to 9 mph
NW
|
|
Friday Night
Jun 12
|
Mostly Clear
|
51°F |
3 to 9 mph
E
|
|
Saturday
Jun 13
|
Sunny
|
74°F |
5 to 8 mph
ENE
|
|
Saturday Night
Jun 13
|
Mostly Clear
|
56°F |
5 to 10 mph
NNE
|
|
Sunday
Jun 14
|
Sunny
|
78°F |
5 to 10 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Index.
