New Castle, NH Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Mostly Clear 39°F
Feels Like 39°F  
Humidity 76% Dew Point 32°F Wind SW 1 MPH Gusts 2 Barometer 29.71 in.
Report from a MADIS/MESONET weather station 0.7 mi. NNE of central New Castle
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Point Forecast at a Glance

WedDec 17
Wed Dec 17: Mostly Clear, Low 27F
 
27
ThuDec 18
Thu Dec 18: Sunny, High 46F, Low 37F
46
37
FriDec 19
Fri Dec 19: Rain, High 55F, Low 24F
100%
55
24
SatDec 20
Sat Dec 20: Mostly Sunny, High 38F, Low 29F
38
29
SunDec 21
Sun Dec 21: Rain, High 44F, Low 19F
30%
44
19
MonDec 22
Mon Dec 22: Sunny, High 29F, Low 18F
29
18
TueDec 23
Tue Dec 23: Rain And Snow, High 36F, Low 24F
40%
36
24

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7-Day Temperature Trend

Week Ahead Summary

High temperatures start near 46°F, reaching 55°F before cooling to 29°F, then recovering to 36°F by week's end. Unsettled weather expected with rain on most days, including one day with wintry mix.

Climate Context

This week's forecast shows temperatures running 2°F above the historical average for December. Normal highs for this period are around 39°F with lows around 22°F.

This Date in Weather History

1987 - A storm in the southwestern U.S. brought heavy rain and heavy snow to parts of California, Nevada, Arizona, Utah and New Mexico. Charleston NV was blanketed with 12 inches of snow. Lake Havasu City AZ was drenched with 2.26 inches of rain.

More on this and other weather history

New Castle, NH 7 Day Weather Forecast Details

Wednesday Dec 17

Mostly Clear

Night: Mostly clear, with a low around 27. West wind 5 to 10 mph.

Thursday Dec 18

Sunny

Day: Sunny, with a high near 46. South wind around 5 mph.

Rain Likely

Night: Rain likely, mainly after 3am. Increasing clouds, with a low around 37. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Friday Dec 19

Rain

Day: Rain. High near 55. Breezy, with a south wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%.

Rain

Night: A 30 percent chance of rain before 7pm. Partly cloudy, with a low around 24. West wind around 15 mph, with gusts as high as 25 mph.

Saturday Dec 20

Mostly Sunny

Day: Mostly sunny, with a high near 38.

Rain

Night: A 30 percent chance of rain after 3am. Cloudy, with a low around 29.

Sunday Dec 21

Rain

Day: A 30 percent chance of rain before 9am. Partly sunny, with a high near 44.

Partly Cloudy

Night: Partly cloudy, with a low around 19.

Monday Dec 22

Sunny

Day: Sunny, with a high near 29.

Partly Cloudy

Night: Partly cloudy, with a low around 18.

Tuesday Dec 23

Rain And Snow

Day: A chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 40%.

Rain And Snow

Night: A chance of rain and snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

Wednesday Dec 24

Mostly Sunny

Day: Mostly sunny, with a high near 36.


About New Castle, NH

New Castle is a town in Rockingham County, New Hampshire, United States. The population was 1,000 at the 2020 census. It is the easternmost town in New Hampshire and the smallest by area, and it is the only town in the state located entirely on islands. It is home to Fort Constitution Historic Site, Fort Stark Historic Site, and the New Castle Common, a 31-acre (13 ha) recreation area on the Atlantic Ocean. New Castle is also home to a United States Coast Guard station, as well as the historic Wentworth by the Sea hotel.

Content from Wikipedia, licensed under CC BY-SA 3.0.

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Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.