Northumberland, NH Weather Forecast
Local 7-day forecast
Patchy Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Northumberland, NH in one place.
Patchy smoke and showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a low around 65. West wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Northumberland, 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: Jul 14, 2026 10:52 PM EDT.
The active forecast window currently covers Jul 14 to Jul 21, 2026 for Northumberland, NH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 21, 2026
- Latest sync
- Jul 14, 2026 10:52 PM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Northumberland
Wednesday looks like the warmest upcoming period in Northumberland at 71 degrees F.
Thursday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Wednesday at about 15 to 30 mph NW.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 10:52 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- GYX
- Radar station
- KCXX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Isolated showers and thunderstorms between 4pm and 5pm, then scattered showers and thunderstorms. Mostly sunny, with a high near 71. Northwest wind 15 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Scattered showers and thunderstorms before 9pm. Mostly clear, with a low around 55. Northwest wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 40%.
A chance of rain showers between 11am and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers and thunderstorms likely. Mostly sunny, with a high near 68. West wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 50. Northwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.
Sunny, with a high near 64.
Mostly clear, with a low around 51.
A slight chance of rain showers between 11am and 2pm, then a slight chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 67. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 67. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 71.
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Jul 14
|
Patchy Smoke
|
65°F |
15 to 20 mph
W
|
|
Wednesday
Jul 15
|
Mostly Sunny then Isolated Showers And Thunderstorms
|
71°F |
15 to 30 mph
NW
|
|
Wednesday Night
Jul 15
|
Scattered Showers And Thunderstorms then Mostly Clear
|
55°F |
15 to 25 mph
NW
|
|
Thursday
Jul 16
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
68°F |
15 to 25 mph
W
|
|
Thursday Night
Jul 16
|
Showers And Thunderstorms Likely then Partly Cloudy
|
50°F |
15 to 25 mph
NW
|
|
Friday
Jul 17
|
Sunny
|
64°F |
15 to 25 mph
NW
|
|
Friday Night
Jul 17
|
Mostly Clear
|
51°F |
5 to 25 mph
SW
|
|
Saturday
Jul 18
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
67°F |
5 mph
S
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely
|
55°F |
5 mph
SE
|
|
Sunday
Jul 19
|
Chance Rain Showers
|
67°F |
5 mph
N
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms then Partly Cloudy
|
56°F |
5 mph
W
|
|
Monday
Jul 20
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
71°F |
5 to 10 mph
SW
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
59°F |
5 to 10 mph
S
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms Likely
|
70°F |
5 to 10 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Northumberland.
