Charleston, WA Weather Forecast
Local 7-day forecast
Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Charleston, WA in one place.
Cloudy. Low around 52, with temperatures rising to around 54 overnight. North northeast wind around 1 mph.
Local Weather Overview
This forecast page for Charleston, 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: Sep 15, 2026 7:13 AM PDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Charleston, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 7:13 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Charleston
Thursday looks like the warmest upcoming period in Charleston at 77 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Wednesday at about 3 to 12 mph NNE.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 7:13 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
A slight chance of rain between 7am and 9am. Partly sunny, with a high near 68. Northeast wind 1 to 10 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 51. North northeast wind 3 to 9 mph.
Sunny, with a high near 75. North northeast wind 3 to 12 mph.
Clear, with a low around 52. North northeast wind 2 to 12 mph.
Sunny, with a high near 77.
Mostly clear, with a low around 53.
Mostly sunny, with a high near 75.
Mostly clear, with a low around 52.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 51.
Sunny, with a high near 73.
Partly cloudy, with a low around 51.
A slight chance of rain after 11am. Partly sunny, with a high near 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Sep 15
|
Cloudy
|
52°F |
1 mph
NNE
|
|
Tuesday
Sep 15
|
Slight Chance Light Rain then Partly Sunny
|
68°F |
1 to 10 mph
NE
|
|
Tuesday Night
Sep 15
|
Mostly Clear
|
51°F |
3 to 9 mph
NNE
|
|
Wednesday
Sep 16
|
Sunny
|
75°F |
3 to 12 mph
NNE
|
|
Wednesday Night
Sep 16
|
Clear
|
52°F |
2 to 12 mph
NNE
|
|
Thursday
Sep 17
|
Sunny
|
77°F |
5 mph
NNE
|
|
Thursday Night
Sep 17
|
Mostly Clear
|
53°F |
0 to 3 mph
WNW
|
|
Friday
Sep 18
|
Mostly Sunny
|
75°F |
3 to 7 mph
SSW
|
|
Friday Night
Sep 18
|
Mostly Clear
|
52°F |
0 to 3 mph
WNW
|
|
Saturday
Sep 19
|
Mostly Sunny
|
73°F |
0 to 5 mph
NNE
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
51°F |
1 to 5 mph
NNE
|
|
Sunday
Sep 20
|
Sunny
|
73°F |
1 to 5 mph
NNE
|
|
Sunday Night
Sep 20
|
Partly Cloudy
|
51°F |
5 mph
N
|
|
Monday
Sep 21
|
Slight Chance Light Rain
|
69°F |
2 to 9 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Charleston.