Northumberland, NH Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Northumberland, NH in one place.
Mostly sunny, with a high near 82.
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 12, 2026 4:31 AM EDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Northumberland, NH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 4:31 AM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Northumberland
Tuesday looks like the warmest upcoming period in Northumberland at 82 degrees F.
Friday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 20 mph SW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 4:31 AM EDT
- Coverage
- 5 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
A chance of showers and thunderstorms between 8pm and 11pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
A chance of rain showers before 8am. Mostly sunny, with a high near 73. Chance of precipitation is 30%.
Mostly clear, with a low around 56.
A slight chance of rain showers after 5pm. Mostly sunny, with a high near 68.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 53.
Mostly sunny, with a high near 64.
Partly cloudy, with a low around 51.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Mostly Sunny
|
82°F |
10 to 20 mph
SW
|
|
Tuesday Night
Jul 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
66°F |
15 to 20 mph
W
|
|
Wednesday
Jul 15
|
Chance Rain Showers then Mostly Sunny
|
73°F |
15 to 20 mph
W
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
56°F |
10 to 20 mph
W
|
|
Thursday
Jul 16
|
Mostly Sunny then Slight Chance Rain Showers
|
68°F |
10 to 20 mph
W
|
|
Thursday Night
Jul 16
|
Slight Chance Rain Showers then Partly Cloudy
|
53°F |
5 to 15 mph
W
|
|
Friday
Jul 17
|
Mostly Sunny
|
64°F |
5 to 15 mph
W
|
|
Friday Night
Jul 17
|
Partly Cloudy
|
51°F |
5 to 10 mph
W
|
|
Saturday
Jul 18
|
Mostly Sunny then Slight Chance Rain Showers
|
67°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Northumberland.
