Newcastle, WA Weather Forecast
Local 7-day forecast
Light Rain
Track current conditions, temperature changes, wind, and the full daily outlook for Newcastle, WA in one place.
Rain. Mostly cloudy, with a high near 74. Southwest wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Newcastle, 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: Jul 14, 2026 8:59 PM PDT.
The active forecast window currently covers Jul 16 to Jul 21, 2026 for Newcastle, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 16 to Jul 21, 2026
- Latest sync
- Jul 14, 2026 8:59 PM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Newcastle
Tuesday looks like the warmest upcoming period in Newcastle at 88 degrees F.
Thursday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Thursday at about 7 mph SW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 8:59 PM 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
A slight chance of rain before 11pm. Mostly cloudy, with a low around 57. South southwest wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 78.
Mostly clear, with a low around 57.
Sunny, with a high near 79.
Mostly clear, with a low around 58.
Sunny, with a high near 83.
Mostly clear, with a low around 60.
Mostly sunny, with a high near 87.
Partly cloudy, with a low around 63.
Mostly sunny, with a high near 88.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Light Rain
|
74°F |
7 mph
SW
|
|
Thursday Night
Jul 16
|
Slight Chance Light Rain then Mostly Cloudy
|
57°F |
7 mph
SSW
|
|
Friday
Jul 17
|
Mostly Sunny
|
78°F |
6 mph
SW
|
|
Friday Night
Jul 17
|
Mostly Clear
|
57°F |
2 to 7 mph
NNW
|
|
Saturday
Jul 18
|
Sunny
|
79°F |
2 to 7 mph
N
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
58°F |
2 to 7 mph
N
|
|
Sunday
Jul 19
|
Sunny
|
83°F |
2 to 7 mph
N
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
60°F |
2 to 7 mph
N
|
|
Monday
Jul 20
|
Mostly Sunny
|
87°F |
2 to 6 mph
N
|
|
Monday Night
Jul 20
|
Partly Cloudy
|
63°F |
1 to 6 mph
N
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
88°F |
5 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Newcastle.
