Portsmouth Plains, NH Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Portsmouth Plains, NH in one place.
Patchy fog before 9am, then a chance of rain showers between 10am and 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 74. South wind around 5 mph. Chance of precipitation is 60%.
Local Weather Overview
This forecast page for Portsmouth Plains, NH is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 9, 2026 9:57 PM EDT.
The active forecast window currently covers Jun 11 to Jun 16, 2026 for Portsmouth Plains, NH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 11 to Jun 16, 2026
- Latest sync
- Jun 9, 2026 9:57 PM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Portsmouth Plains
Thursday looks like the warmest upcoming period in Portsmouth Plains at 74 degrees F.
Friday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Sunday at about 5 to 10 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 9:57 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- GYX
- Radar station
- KGYX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 9pm, then patchy fog. Mostly cloudy, with a low around 60. East wind 0 to 5 mph. Chance of precipitation is 40%.
Patchy fog before 9am. Mostly cloudy, with a high near 67.
A slight chance of showers and thunderstorms between 10pm and midnight, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
A chance of rain showers before 4pm. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Partly cloudy, with a low around 59.
Mostly sunny, with a high near 74.
A slight chance of rain showers after 5am. Partly cloudy, with a low around 61.
A chance of rain showers. Mostly sunny, with a high near 72. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely
|
74°F |
5 mph
S
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms then Patchy Fog
|
60°F |
0 to 5 mph
E
|
|
Friday
Jun 12
|
Patchy Fog then Mostly Cloudy
|
67°F |
0 to 5 mph
E
|
|
Friday Night
Jun 12
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
57°F |
0 to 5 mph
E
|
|
Saturday
Jun 13
|
Chance Rain Showers
|
68°F |
0 to 5 mph
E
|
|
Saturday Night
Jun 13
|
Partly Cloudy
|
59°F |
0 to 5 mph
W
|
|
Sunday
Jun 14
|
Mostly Sunny
|
74°F |
5 to 10 mph
SW
|
|
Sunday Night
Jun 14
|
Partly Cloudy then Slight Chance Rain Showers
|
61°F |
5 to 10 mph
SW
|
|
Monday
Jun 15
|
Chance Rain Showers
|
72°F |
5 to 10 mph
S
|
|
Monday Night
Jun 15
|
Chance Rain Showers
|
58°F |
5 to 10 mph
SE
|
|
Tuesday
Jun 16
|
Chance Rain Showers
|
67°F |
5 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portsmouth Plains.