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January 18th, 2026 :: 2:21 am PST   

Local Weather Report for
Newcastle
Washington, United States

 Current Newcastle Weather Conditions Updated January 18th at 12:53 am 
Temperature:36°F Dew Point:34°F
Barometer:30.27 inHg Wind:calm
Humidity:93.1% Visibility:0M
 
 Newcastle Weather Forecast Summary  
 
Today
Jan 18th
Monday
Jan 19th
Tuesday
Jan 20th
Wednesday
Jan 21st
Thursday
Jan 22nd
Sunny Mix of Cloud and Sun Cloudy Cloudy Cloudy
52°F
52°F
36°F
49°F
36°F
48°F
37°F
43°F
37°F
 
 Newcastle Detailed Weather Forecast  
 
Sunday, January 18th, 2026
Overnight Temperature: 37°F
Clear.
Morning Temperature: 49°F
Sunny.
Afternoon Temperature: 43°F
Sunny.
Evening Temperature: 38°F
Clear.
Monday, January 19th, 2026
Overnight Temperature: 36°F
Clear.
Morning Temperature: 49°F
Sunny.
Afternoon Temperature: 43°F
A mix of cloud and sun.
Evening Temperature: 38°F
A mix of cloudy and clear skies.
Tuesday, January 20th, 2026
Overnight Temperature: 37°F
Clear with cloudy periods.
Morning Temperature: 46°F
Cloudy.
Afternoon Temperature: 42°F
A mix of cloud and sun.
Evening Temperature: 38°F
Cloudy.
Wednesday, January 21st, 2026
Overnight Temperature: 38°F
Cloudy.
Morning Temperature: 46°F
Cloudy.
Afternoon Temperature: 42°F
Cloudy.
Evening Temperature: 40°F
Cloudy.
Thursday, January 22nd, 2026
Overnight Temperature: 38°F
A mix of cloudy and clear skies.
Morning Temperature: 42°F
Cloudy.
Afternoon Temperature: 42°F
Cloudy with a slight chance of showers.
Evening Temperature: 41°F
Cloudy with a chance of showers.
Friday, January 23rd, 2026
Overnight Temperature: 40°F
Cloudy with a chance of showers.
Morning Temperature: 42°F
Cloudy with a chance of showers.
Afternoon Temperature: 42°F
Cloudy with a chance of showers.
Evening Temperature: 42°F
Cloudy with a chance of showers.
Saturday, January 24th, 2026
Overnight Temperature: 36°F
Cloudy with a chance of showers. Showers possibly mixed with wet flurries.
Morning Temperature: 34°F
Cloudy with a few flurries or showers. Risk of freezing rain.
Afternoon Temperature: 33°F
Cloudy with a few flurries or showers. Risk of freezing rain.
Evening Temperature: 33°F
Cloudy with flurries or freezing rain showers likely.
Sunday, January 25th, 2026
Overnight Temperature: 43°F
Cloudy with a few showers. Showers possibly mixed with wet flurries. Windy at times.
Morning Temperature: 47°F
Cloudy with showers likely. Windy at times.
Afternoon Temperature: 47°F
Cloudy with showers likely. Windy at times.
Evening Temperature: 46°F
Cloudy with showers likely. Windy at times.
Monday, January 26th, 2026
Overnight Temperature: 44°F
Cloudy with showers likely. Windy at times.
Morning Temperature: 45°F
Cloudy with a chance of showers.
Afternoon Temperature: 44°F
Cloudy with a chance of showers.
Evening Temperature: 44°F
Cloudy with a chance of showers.





 

  [ Local Weather Report ]
Newport, WA 
12:53 AM  36°F
 
 
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12:53 AM  36°F
 
 
Mercer Island, WA 
12:53 AM  36°F
 
 
Renton, WA 
12:53 AM  36°F
 
 
Bellevue, WA 
 
Issaquah, WA 
 
Clyde Hill, WA 
 
Medina, WA 
12:53 AM  37°F
 
 
Tukwila, WA 
12:53 AM  36°F
 
 
Hunts Point, WA 

 
This WeatherCity Weather Forecast for Newcastle, Washington, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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