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

Jefferson

1,060 people, 1,140 ft above sea level in Coos County.

1,140 ftElevation, city center
1,060People, 2024 estimate
50 sq miLand area
Sunny 60°
Sunny now Dew point 54° · N 5 mph · high 61°
City of Jefferson River Interstate 2 miles
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The Jefferson 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 Jefferson

NWS forecast and National Blend of Models · updated 2:00 PM EDT
RIGHT NOW Whitefield - Mount Washington Regional Airport (KHIE) · 2:52 PM
Sunny
60° Sunny Feels like 60° · high of 61° near 4 PM
WindN 5 mphno gusts
Humidity80%rising to 100% by morning
Pressure29.98 in →steady
Visibility10 mihaze-free
CloudsClear
UV index1 by 12 PMlow
Dew point 54° · Dryabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Friday70% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINSept. 270.05 in · 2 dry days
ALERTS & OUTLOOKS
No watches or warnings for Coos County
NWS Gray and the Storm Prediction Center · checked 3:19 PM
SUN & MOON
↑ 6:40 AM6:31 PM ↓
11 h 50 m of daylight, 3 minutes less than yesterday
Waning gibbous, 89% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
10
GOODAir quality index · ozone
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
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
mostly cloudy day
mostly cloudy night
mostly cloudy night
mostly cloudy night
fog
fog
partly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
mostly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
mostly sunny
mostly sunny
partly cloudy day
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
TEMPERATURE °F
60°
47°
68°
52°
75°
59°
CHANCE OF RAIN
50%
WIND, MPH
3
0
0
0
0
0
0
0
0
0
0
0
0
0
2
7
7
7
6
5
3
1
2
5
HOW IT FEELS · DEW POINT
Dry: dew points 47 to 55° ↑ Humid air returns More humid: 58° by Friday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 65° / 39°
TUE Sept. 29 Mostly cloudy Mostly cloudy
61° 43°
0% rain — NNW 2 A
WED Sept. 30 Mostly cloudy; warmer Mostly cloudy; warmer
70° 47°
0% rain — NNW 0 B
THU Oct. 1 Partly cloudy Partly cloudy
77° 56°
10% rain — SW 4 B
FRI Oct. 2 Showers likely Showers likely
74° 41°
70% rain 0.09–0.5″ WNW 5 C
SAT Oct. 3 Mostly sunny; cooler Mostly sunny; cooler
63° 29°
10% rain — NNW 5 C
SUN Oct. 4 Chance of showers Chance of showers
63° 33°
40% rain up to 0.2″ SSE 3 B
MON Oct. 5 Chance of showers Chance of showers
59° 25°
40% rain up to 0.1″ WNW 9 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 Jefferson about 5,000 feet above the ground was over the North Atlantic three days ago, and over the western Atlantic a day ago, about 1,290 miles back along its path. Most of the nine paths traced from around the city agree. 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 Jefferson on the Forecast Network

Neighboring plates

Lowell MA · 122 MI 122 miles south Cambridge MA · 141 MI 141 miles south Boston MA · 144 MI 144 miles south Worcester MA · 148 MI 148 miles south
FORECASTCITY
Atlas plate of Jefferson, New Hampshire. Explore the plate
NEW HAMPSHIRE · COOS

Jefferson

1,060 people, 1,140 ft above sea level in Coos County.

1,140 ftElevation
1,060People
50 sq miLand
Sunny 60°
SunnyDew point 54°
1

Today in Jefferson

NEXT 15 HOURS
Now mostly cloudy day 60° 1%
6p mostly cloudy day 59° 1%
9p mostly cloudy night 54° 1%
12a partly cloudy night 51° 0%
3a fog 49° 0%
6a fog 47° 0%
Rain
NEXT RAINFriday · 70%
→
Tue0%
Mostly cloudy Mostly cloudy
43
61
A
Wed0%
Mostly cloudy; warmer Mostly cloudy; warmer
47
70
B
Thu10%
Partly cloudy Partly cloudy
56
77
B
Fri70%
Showers likely Showers likely
41
74
C
Sat10%
Mostly sunny; cooler Mostly sunny; cooler
29
63
C
Sun40%
Chance of showers Chance of showers
33
63
B
Mon40%
Chance of showers Chance of showers
25
59
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
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