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May 18th, 2026 :: 4:45 am EDT   

Local Weather Report for
New Castle
New Hampshire, United States

 Current New Castle Weather Conditions Updated May 18th at 3:55 am 
Overcast
Temperature:59°F Dew Point:54°F
Barometer:30.15 inHg Wind:calm
Humidity:82.2% Visibility:0M
 
 New Castle Weather Forecast Summary  
 
Today
May 18th
Tuesday
May 19th
Wednesday
May 20th
Thursday
May 21st
Friday
May 22nd
Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
55°F
71°F
53°F
69°F
59°F
55°F
50°F
54°F
49°F
 
 New Castle Detailed Weather Forecast  
 
Monday, May 18th, 2026
Overnight Temperature: 54°F
Mostly clear.
Morning Temperature: 52°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 52°F
Sunny. Windy at times.
Evening Temperature: 53°F
Clear with cloudy periods. Windy at times.
Tuesday, May 19th, 2026
Overnight Temperature: 54°F
Mostly clear.
Morning Temperature: 61°F
Sunny. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 70°F
Mostly sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 63°F
Mostly clear with a slight chance of showers. Windy.
Wednesday, May 20th, 2026
Overnight Temperature: 60°F
Mostly clear. Windy at times.
Morning Temperature: 63°F
Mostly sunny. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 69°F
Mostly sunny. Slight chance of a thunderstorm. Windy.
Evening Temperature: 61°F
Clear with cloudy periods. Windy.
Thursday, May 21st, 2026
Overnight Temperature: 54°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 50°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 51°F
Sunny with cloudy periods. Windy.
Evening Temperature: 52°F
Clear. Windy at times.
Friday, May 22nd, 2026
Overnight Temperature: 50°F
Mostly clear. Windy at times.
Morning Temperature: 51°F
Mostly sunny.
Afternoon Temperature: 53°F
Mostly sunny. Windy.
Evening Temperature: 54°F
Mostly clear. Windy.
Saturday, May 23rd, 2026
Overnight Temperature: 53°F
A mix of clear and cloudy skies. Windy at times.
Morning Temperature: 52°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 52°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 51°F
Clear with cloudy periods. Windy at times.
Sunday, May 24th, 2026
Overnight Temperature: 51°F
Mostly clear.
Morning Temperature: 52°F
Mostly sunny.
Afternoon Temperature: 53°F
Mostly sunny. Windy at times.
Evening Temperature: 52°F
Clear with cloudy periods. Windy at times.
Monday, May 25th, 2026
Overnight Temperature: 52°F
A mix of cloudy and clear skies.
Morning Temperature: 52°F
Cloudy with sunny periods. Windy at times.
Afternoon Temperature: 52°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 53°F
Mostly cloudy. Windy at times.
Tuesday, May 26th, 2026
Overnight Temperature: 53°F
Cloudy with a chance of showers. Windy at times.
Morning Temperature: 54°F
Cloudy with a few showers. Windy.
Afternoon Temperature: 55°F
Cloudy with a few showers. Windy.
Evening Temperature: 55°F
Cloudy with showers likely. Windy at times.





 

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3:55 AM  59°F
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3:55 AM  59°F
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3:55 AM  59°F
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3:55 AM  59°F
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Eliot, ME 
3:55 AM  59°F
Overcast
 
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Stratham, NH 
3:55 AM  59°F
Overcast
 
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This WeatherCity Weather Forecast for New Castle, New Hampshire, 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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