Index, WA Weather Forecast

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Index WA weather  - Clear - 63°F
Clear
63°F
Updated 2:22 pm
Feels Like 61°F
Humidity 62%
Wind NW 7 mph
Barometer  30.05 in
Dew Point 50°F
Index WA weather  - Clear - 17°C
Clear
17°C
Updated 2:22 pm
Feels Like 16°C
Humidity 62%
Wind NW 11 km/h
Barometer  101.8 kPa
Dew Point 10°C

Index Weather Forecast

TODAY TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT
Index, WA Weather - Today Chance Of Showers Index, WA Weather - Tonight Patchy Fog Index, WA Weather - Wednesday Patchy Fog Index, WA Weather - Wednesday Night Clear Index, WA Weather - Thursday Sunny Index, WA Weather - Thursday Night Clear Index, WA Weather - Friday Sunny Index, WA Weather - Friday Night Mostly Clear Index, WA Weather - Saturday Mostly Sunny Index, WA Weather - Saturday Night Mostly Clear Index, WA Weather - Sunday Mostly Sunny Index, WA Weather - Sunday Night Mostly Clear
Chance of Showers Patchy Fog Patchy Fog Clear Sunny Clear Sunny Mostly Clear Mostly Sunny Mostly Clear Mostly Sunny Mostly Clear
Hi: 65°FHi: 18°C
Lo: 46°FLo: 8°C Hi: 75°FHi: 24°C
Lo: 50°FLo: 10°C Hi: 75°FHi: 24°C
Lo: 50°FLo: 10°C Hi: 75°FHi: 24°C
Lo: 53°FLo: 12°C Hi: 73°FHi: 23°C
Lo: 53°FLo: 12°C Hi: 73°FHi: 23°C
Lo: 51°FLo: 11°C
POP = Probability of Precipitation.
Weather Outlook Updated: 236 AM PDT Tue Sep 15 2026 Index, WA Weather - WeatherWorld.com

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Issued: 829 AM PDT Tue Sep 15 2026

Aviation

... Westerly flow aloft will turn northerly tonight as an upper trough drops southward across the Pacific Northwest. A mix of MVFR and VFR ceilings will continue through roughly 20Z. Ceilings will improve this afternoon with clearing tonight and VFR expected areawide. There`s roughly a 30-40% chance of IFR/LIFR redevelopment overnight/Wednesday morning in pockets of the interior (as winds become light or calm overnight out of the north). Some of the lower ceilings may drop to the ground ...