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Grantham, New Hampshire Weather Forecast
Grantham, New Hampshire Weather
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Weather Forecast for Grantham, New Hampshire : Sullivan County
Issued: 12:56 am EST Nov 5, 2025 Latitude: 43.4895173 Longitude: -72.1375878 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Veterans Day
40% chance of rain on Today 90% chance of rain & snow on Tonight Mostly Cloudy on Thursday Mostly Cloudy on Friday 60% chance of  on Saturday 60% chance of rain on Sunday 40% chance of rain & snow on Monday Partly Sunny on Veterans Day
High: 47°F Low: 33°F High: 41°F High: 48°F High: 56°F High: 48°F High: 42°F High: 37°F
Low: 24°F Low: 39°F Low: 33°F Low: 31°F Low: 23°F  
Rain Rain & Snow Mostly Cloudy Mostly Cloudy Partly Sunny Rain Rain & Snow Partly Sunny
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Current Conditions at
LEBANON - (KLEB)
28°
Clear
as of 3:53 AM EST
Rel. Humidity: 92%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
5 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
SPRINGFIELD - (KVSF)
30°
Clear
as of 3:54 AM EST
Rel. Humidity: 86%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
LACONIA - (KLCI)
37°
Clear
as of 3:56 AM EST
Rel. Humidity: 69%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
7 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
CONCORD - (KCON)
27°
Clear
as of 3:51 AM EST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
40% chance of rain Today Today... A 40 percent chance of rain, mainly after 4pm. Cloudy, with a high near 47. Southwest wind around 5 mph becoming south in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

90% chance of rain & snow Tonight Tonight... Rain, possibly mixing with snow after 3am, then gradually ending. Low around 33. South wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Mostly Cloudy on Thursday Thursday... Mostly cloudy, then gradually becoming sunny, with a high near 41. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 40 mph.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 24. Northwest wind around 5 mph becoming calm after midnight.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 48. Light southwest wind becoming south 5 to 10 mph in the morning.

80% chance of rain Friday Night Friday Night... Showers. Low around 39. Chance of precipitation is 80%.

60% chance of  Saturday Saturday... Showers likely, mainly before 7am. Partly sunny, with a high near 56. Chance of precipitation is 60%.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 33.

60% chance of rain Sunday Sunday... Showers likely, mainly after 4pm. Mostly cloudy, with a high near 48. Chance of precipitation is 60%.

60% chance of rain & snow Sunday Night Sunday Night... Rain showers likely before 4am, then a chance of rain and snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

40% chance of rain & snow Monday Monday... A chance of rain and snow showers. Partly sunny, with a high near 42. Chance of precipitation is 40%.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 23.

Partly Sunny on Veterans Day Veterans Day... Partly sunny, with a high near 37.

Current Radar Image


Sun Almanac for Grantham, New Hampshire
Sunrise: 06:30 AM
Sunset: 4:34 PM
Civil Sunrise:06:00 AM
Civil Sunset: 5:04 PM
Nautical Sunrise: 05:26 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 04:52 AM
Astro Sunset: 6:12 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.