Portsmouth Harbor Weather

43°5'N 70°45'W
Current Conditions
Overcast
31°F
Feels like: 25°F
Wind Chill: 25°F Ceiling: 5000ft
Heat Index: 31°F Visibility: 10mi
Dew Point: 25°F Wind: 6mph
Humidity: 78% Direction: 300° (WNW)
Pressure: 30.38" Gusts: -
Reported: 59 minutes 54 seconds ago
December 22, 2014 6:00 am EST
Location: 42.967N 70.623W or 5 nautical miles SE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: NNE (20°)
Wind Speed: 16 knots
Wind Gust: 17 knots
Atmospheric Pressure: 30.36 in (1028.1 mb)
Pressure Tendency: +0.02 in (+0.6 mb)
Air Temperature: 34°F (1.1°C)
Dew Point: 30°F (-1.0°C)
December 22, 2014 6:04 am EST
Location: 43.181N 70.428W or 15 nautical miles NE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: NNE (20°)
Wind Speed: 14 knots
Wind Gust: 16 knots
Significant Wave Height: 3 ft
Dominant Wave Period: 8 sec
Atmospheric Pressure: 30.35 in (1027.8 mb)
Air Temperature: 35°F (1.5°C)
Water Temperature: 47°F (8.1°C)
Visibility: 1.6 nmi
December 22, 2014 6:30 am EST
Location: 43.32N 70.563W or 18 nautical miles NNE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: N (360°)
Wind Speed: 6 knots
Wind Gust: 8 knots
Atmospheric Pressure: 30.38 in (1028.8 mb)
Air Temperature: 31°F (-0.7°C)
Water Temperature: 36°F (2.4°C)
Monday, December 22
7:11am / 4:11pm 7:19am / 5:18pm
Mostly Cloudy
38°
38°
Day: Partly cloudy skies this morning will become overcast during the afternoon. High 38F. Winds NNE at 5 to 10 mph.
Night: Cloudy with occasional light rain . Low 38F. Winds E at 5 to 10 mph. Chance of rain 50%.
Tuesday, December 23
7:11am / 4:12pm 8:11am / 6:27pm
Rain
43°
41°
Day: Rain. High 43F. Winds E at 10 to 15 mph. Chance of rain 90%. Rainfall near a quarter of an inch.
Night: Periods of rain. Low 41F. Winds ENE at 10 to 15 mph. Chance of rain 100%. Rainfall near a quarter of an inch.
Wednesday, December 24
7:12am / 4:12pm 8:57am / 7:37pm
Rain
46°
45°
Rain. Highs in the mid 40s with temperatures nearly steady overnight.
Thursday, December 25
7:12am / 4:13pm 9:38am / 8:50pm
AM Rain
49°
34°
Cloudy with rain in the morning. Highs in the upper 40s and lows in the mid 30s.
Friday, December 26
7:13am / 4:14pm 10:15am / 10:01pm
Sunny
45°
35°
Sunshine. Highs in the mid 40s and lows in the mid 30s.
Saturday, December 27
7:13am / 4:14pm 10:50am / 11:11pm
Sunny
44°
32°
Abundant sunshine. Highs in the mid 40s and lows in the low 30s.
Sunday, December 28
7:13am / 4:15pm 11:23am / 12:01am
PM Rain
36°
26°
Periods of rain during the afternoon. Highs in the mid 30s and lows in the mid 20s.
Monday, December 29
7:13am / 4:16pm 11:57am / 12:20am
Mostly Sunny
32°
24°
Mostly sunny. Highs in the low 30s and lows in the mid 20s.
Tuesday, December 30
7:14am / 4:17pm 12:32pm / 1:27am
Mostly Sunny
35°
26°
Plenty of sun. Highs in the mid 30s and lows in the mid 20s.
Wednesday, December 31
7:14am / 4:17pm 1:10pm / 2:33am
Partly Cloudy
31°
23°
Times of sun and clouds. Highs in the low 30s and lows in the low 20s.
Wind Forecast
Day MondayTuesday
MPH 6 6 7 7 7 7 8 11 12 10 9 3
NNE
NNE
NNE
ENE
E
ESE
E
E
ENE
E
E
ENE
Radar
Marine Forecast
  • SynopsisA WEAK INVERTED TROUGH WILL LINGER THROUGH TODAY. STRONG LOW PRESSURE WELL TO THE WEST WILL DRIVE A WARM FRONT WITH A STRONG SOUTHEAST FLOW ACROSS THE WATERS WEDNESDAY AND WEDNESDAY NIGHT. A COLD FRONT CROSSES THE WATERS AND SWITCHES THE FLOW TO THE WEST ON THURSDAY.
  • Today Variable winds 5 kt or less. A slight chance of snow showers before 9am, then a slight chance of rain and snow showers between 9am and 11am, then a chance of rain showers after 11am. Seas 2 to 3 ft.
  • Tonight E wind 5 to 10 kt. A chance of showers. Seas 3 to 4 ft.
  • Tuesday E wind 10 to 15 kt, with gusts as high as 20 kt. Rain likely, mainly after 1pm. Seas 4 to 5 ft.
  • Tuesday Night E wind 10 to 15 kt. Rain likely, mainly after 4am. Seas 4 to 5 ft.
  • Wednesday ENE wind around 10 kt. Rain. Seas 3 to 4 ft.
  • Wednesday Night E wind 10 to 15 kt becoming S after midnight. Rain. The rain could be heavy at times. Seas 4 to 5 ft.
  • Christmas Day S wind 10 to 15 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. Showers likely before 1pm. Seas 4 to 5 ft.
  • Thursday Night W wind around 15 kt, with gusts as high as 20 kt. Partly cloudy. Seas 3 to 4 ft.
  • Friday W wind 10 to 15 kt. Mostly sunny. Seas 2 to 3 ft.