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Shaded-relief atlas plate of New Castle, New Hampshire: rivers, roads, the city limits and where the water drains.
NEW HAMPSHIRE · ROCKINGHAM COUNTY

New Castle

1,001 people, 80 ft above sea level in Rockingham County.

80 ftElevation, city center
1,001People, 2024 estimate
1 sq miLand area
Sunny 64°
Sunny now Dew point 59° · E 3 mph · high 61°
City of New Castle River Interstate 2 miles
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The New Castle plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in New Castle

NWS forecast and National Blend of Models · updated 6:00 PM EDT
RIGHT NOW Pease Air Force Base / Portsmouth (KPSM) · 5:55 PM
Sunny
64° Sunny Feels like 64° · high of 61° near 6 PM
WindE 3 mphno gusts
Humidity85%rising to 100% by morning
Pressure29.94 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 59° · Comfortableabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Friday40% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINSept. 210.24 in · 8 dry days
ALERTS & OUTLOOKS
No watches or warnings for Rockingham County
NWS Gray and the Storm Prediction Center · checked 6:46 PM
SUN & MOON
↑ 6:37 AM6:28 PM ↓
11 h 51 m of daylight, 3 minutes less than yesterday
Waning gibbous, 88% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
16
GOODAir quality index · fine particles
Tomorrow: None, good. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
TUESDAY, SEPT. 29
WEDNESDAY, SEPT. 30
THURSDAY, OCT. 1
FRIDAY, OCT. 2
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
mostly cloudy night
mostly cloudy night
partly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
mostly sunny
mostly sunny
partly cloudy day
partly cloudy day
TEMPERATURE °F
61°
55°
68°
56°
77°
65°
CHANCE OF RAIN
50%
WIND, MPH
0
0
0
0
0
0
3
7
6
4
3
3
4
5
8
9
8
8
7
7
7
8
10
10
HOW IT FEELS · DEW POINT
Comfortable: dew points 55 to 61°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 66° / 47°
TUE Sept. 29 Mostly cloudy Mostly cloudy
61° 55°
0% rain — S 0 A
WED Sept. 30 Mostly cloudy; warmer Mostly cloudy; warmer
70° 55°
0% rain — SSE 3 B
THU Oct. 1 Partly cloudy; warmer Partly cloudy; warmer
79° 65°
0% rain — SSW 7 B
FRI Oct. 2 Chance of showers Chance of showers
81° 55°
40% rain up to 0.2″ WSW 9 C
SAT Oct. 3 Mostly sunny; cooler Mostly sunny; cooler
70° 45°
0% rain — NNW 2 B
SUN Oct. 4 Chance of showers Chance of showers
65° 47°
40% rain up to 0.3″ SE 6 B
MON Oct. 5 Mostly sunny Mostly sunny
65° 42°
20% rain — WNW 10 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over New Castle about 5,000 feet above the ground was over the western Atlantic three days ago, about 1,940 miles back along its path. The nine paths traced from around the city fan out, so treat that as a best guess. Near the ground the air came from Canada; at 10,000 feet, from the western Atlantic. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

MILE7
ON THE NETWORK

Around New Castle on the Forecast Network

Neighboring plates

Lawrence MA · 34 MI 34 miles southwest Manchester NH · 37 MI 37 miles west Boston MA · 52 MI 52 miles south Worcester MA · 78 MI 78 miles southwest Providence RI · 93 MI 93 miles south Springfield MA · 114 MI 114 miles southwest
FORECASTCITY
Atlas plate of New Castle, New Hampshire. Explore the plate
NEW HAMPSHIRE · ROCKINGHAM

New Castle

1,001 people, 80 ft above sea level in Rockingham County.

80 ftElevation
1,001People
1 sq miLand
Sunny 64°
SunnyDew point 59°
1

Today in New Castle

NEXT 15 HOURS
Now mostly cloudy night 61° 0%
9p mostly cloudy night 59° 2%
12a mostly cloudy night 57° 5%
3a mostly cloudy night 56° 1%
6a mostly cloudy night 55° 1%
9a mostly cloudy day 60° 0%
Rain
NEXT RAINFriday · 40%
→
Tue0%
Mostly cloudy Mostly cloudy
55
61
A
Wed0%
Mostly cloudy; warmer Mostly cloudy; warmer
55
70
B
Thu0%
Partly cloudy; warmer Partly cloudy; warmer
65
79
B
Fri40%
Chance of showers Chance of showers
55
81
C
Sat0%
Mostly sunny; cooler Mostly sunny; cooler
45
70
B
Sun40%
Chance of showers Chance of showers
47
65
B
Mon20%
Mostly sunny Mostly sunny
42
65
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
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