Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Severe Thunderstorms With Heavy Rain Possible from the Upper Midwest to the Mid-Atlantic; Excessive Heat For Central U.S.

Storms will move from the Upper Great Lakes to the Ohio Valley/Lower Great Lakes into the northern Mid-Atlantic through the day. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat warnings and heat advisories are in place for states in the Central Plains, the Southeast, and the Mid-Atlantic. Localized flash flooding may occur in the Southwest. Read More >

Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Mostly Cloudy

77°F

25°C

Humidity 63%
Wind Speed SW 3 mph
Barometer 29.78 in (1008.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 21 Jul 9:58 pm EDT
Extended Forecast for

Portsmouth NH

  • Tonight

    Tonight: Mostly clear, with a low around 65. West wind around 5 mph.

    Mostly Clear

    Low: 65 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Southwest wind around 5 mph.

    Mostly Sunny

    High: 89 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 62. West wind around 5 mph becoming calm  after midnight.

    Mostly Cloudy

    Low: 62 °F

  • Sunday

    Sunday: A 30 percent chance of showers after 2pm.  Mostly cloudy, with a high near 72. Northeast wind 5 to 10 mph.

    Mostly Cloudy
    then Chance
    Showers

    High: 72 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 60. East wind around 5 mph.

    Chance
    Showers

    Low: 60 °F

  • Monday

    Monday: Showers likely.  Cloudy, with a high near 68. Chance of precipitation is 60%.

    Showers
    Likely

    High: 68 °F

  • Monday
    Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Some of the storms could produce heavy rain.  Mostly cloudy, with a low around 59.

    Heavy Rain

    Low: 59 °F

  • Tuesday

    Tuesday: A 30 percent chance of showers.  Mostly cloudy, with a high near 66.

    Chance
    Showers

    High: 66 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 57.

    Partly Cloudy

    Low: 57 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 65. West wind around 5 mph.
Saturday
Mostly sunny, with a high near 89. Southwest wind around 5 mph.
Saturday Night
Mostly cloudy, with a low around 62. West wind around 5 mph becoming calm after midnight.
Sunday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 72. Northeast wind 5 to 10 mph.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 60. East wind around 5 mph.
Monday
Showers likely. Cloudy, with a high near 68. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 59.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 79.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 80.
Click Map For Forecast
Point Forecast:
Portsmouth NH
 43.07°N 70.78°W (Elev. 33 ft)
10:04 pm EDT Jul 21, 2017
10pm EDT Jul 21, 2017-6pm EDT Jul 28, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database