Hillsborough County, NH Weather Forecast
County weather hub
Light Rain Likely
Compare major city weather across Hillsborough County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain likely. Mostly cloudy. Low around 40, with temperatures rising to around 46 overnight. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Hillsborough County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 11 of 11 mapped cities in Hillsborough County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 30 to Jun 5, 2026
- Latest sync
- May 30, 2026 7:04 AM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Hillsborough County
Friday looks like the warmest upcoming period in Hillsborough County at 84 degrees F.
Overnight is the coolest period ahead with temperatures near 40 degrees F.
The strongest winds are forecast for Saturday at about 10 to 20 mph N.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 7:04 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- GYX
- Radar station
- KBOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain before 2pm, then a chance of rain showers between 2pm and 4pm. Mostly cloudy, with a high near 53. North wind 10 to 20 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Mostly clear, with a low around 41. North wind 0 to 10 mph. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain after 4pm. Partly sunny, with a high near 68. Northwest wind 5 to 10 mph.
A chance of rain before 2am, then a chance of rain showers. Mostly cloudy, with a low around 46. West wind 0 to 5 mph. Chance of precipitation is 50%.
Rain showers likely. Partly sunny, with a high near 62. Chance of precipitation is 60%.
A slight chance of rain showers before 8pm. Mostly clear, with a low around 43.
A slight chance of rain showers between 9am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 68. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.
A slight chance of rain showers before 10am. Mostly sunny, with a high near 69.
Partly cloudy, with a low around 50.
Sunny, with a high near 77.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 84.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 30
|
Light Rain Likely
|
40°F |
15 mph
NW
|
|
Saturday
May 30
|
Light Rain
|
53°F |
10 to 20 mph
N
|
|
Saturday Night
May 30
|
Mostly Clear
|
41°F |
0 to 10 mph
N
|
|
Sunday
May 31
|
Partly Sunny then Slight Chance Light Rain
|
68°F |
5 to 10 mph
NW
|
|
Sunday Night
May 31
|
Chance Light Rain
|
46°F |
0 to 5 mph
W
|
|
Monday
Jun 1
|
Rain Showers Likely
|
62°F |
0 to 5 mph
NE
|
|
Monday Night
Jun 1
|
Slight Chance Rain Showers then Mostly Clear
|
43°F |
0 to 5 mph
S
|
|
Tuesday
Jun 2
|
Chance Showers And Thunderstorms
|
68°F |
0 to 5 mph
NW
|
|
Tuesday Night
Jun 2
|
Chance Showers And Thunderstorms
|
46°F |
0 to 5 mph
N
|
|
Wednesday
Jun 3
|
Slight Chance Rain Showers then Mostly Sunny
|
69°F |
5 mph
NE
|
|
Wednesday Night
Jun 3
|
Partly Cloudy
|
50°F |
0 to 5 mph
N
|
|
Thursday
Jun 4
|
Sunny
|
77°F |
5 mph
NW
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
56°F |
0 to 5 mph
W
|
|
Friday
Jun 5
|
Mostly Sunny
|
84°F |
0 to 5 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Hillsborough County.
Coverage
Forecast coverage currently spans 11 of 11 mapped cities in Hillsborough County.
Largest mapped city population in this region: 112,546.
