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      Elev 43 ft, 43.074 °N 70.761 °W

      Portsmouth, NH

      Updated: 3:32 AM EDT on August 18, 2026 (GMT -4)
      2 minutes ago
      75°
      65°
      68
      Feels Like 68
      Cloudy
      N
      1
      Similar temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Today
      Tue 08/18
      High 75°f
      18% Precip. / 0 in
      Areas of patchy fog early. Cloudy skies early, then partly cloudy this afternoon. High around 75F. Winds ENE at 5 to 10 mph.
      Tonight
      Tue 08/18
      Low 61°f
      23% Precip. / 0 in
      Partly cloudy this evening. Fog developing late. Low 61F. Winds light and variable.
      Tomorrow
      Wed 08/19
      High 82°f64°f
      22% Precip. / 0 in
      Areas of patchy fog early. Partly cloudy skies. High 82F. Winds SSW at 5 to 10 mph.
      Hourly Forecast
      Now
      68°
      4AM
      68°
      5AM
      68°
      5:52AM
      Sunrise
      6AM
      67°
      7AM
      67°
      8AM
      68°
      9AM
      70°
      10AM
      71°
      11AM
      72°
      12PM
      73°
      1PM
      75°
      2PM
      75°
      3PM
      75°
      4PM
      75°
      5PM
      74°
      6PM
      73°
      7PM
      71°
      7:41PM
      Sunset
      8PM
      69°
      9PM
      67°
      10PM
      67°
      11PM
      66°
      12AM
      66°
      1AM
      66°
      2AM
      66°
      3AM
      21%
      66°
      Additional Conditions
      1. Pressure 29.83 in
      2. Visibility 6 miles
      3. Clouds Cloudy
      4. Dew Point67°F
      5. Humidity 96%
      6. Rainfall 0.09 in
      7. Snow Depth 0 in
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      Astronomy
      1. Sun Rise Set
      2. Actual Time 5:52 AM 7:40 PM
      3. Civil Twilight 5:21 AM 8:11 PM
      4. Nautical Twilight 4:44 AM 8:48PM
      5. Astronomical Twilight 4:04 AM 9:27 PM
      1. Length of Visible Light 14h 49m
      2. Length of Day 13h 48m
      3. Tomorrow will be 2 minutes 39 seconds shorter
      1. Moon 12:35 PM 10:10 PM
      2. Waxing crescent35% of the Moon is Illuminated
      Aug 26
      Full Moon
      Sep 3
      Waning Half Last Qtr
      Sep 16
      Waxing Half First Qtr
      -
      -
      KPSM Station History
      Almanac for August 18, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 75°F 80°F 94°F 2002
      4. Low 65°F 59°F 41°F 1979
      5. Rain/Snow Depth
      6. Precipitation 0 in 4.1 in -
      7. Snow 0 in 0 in -
      Almanac for August 19, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 82°F 79°F 90°F
      4. Low 65°F 59°F 42°F
      Precipitation
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