National Weather Service Forecast for: Lakeport NH
Issued by: National Weather Service Gray/Portland, ME
Updated: 6:48 am EDT Jun 30, 2026
 
Today

Today: Mostly sunny and hot, with a high near 90. Calm wind becoming southwest around 5 mph.
Hot

 Tonight

Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers

 Wednesday

Wednesday: A slight chance of showers and thunderstorms between 2pm and 3pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 111. West wind around 5 mph. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 75. Calm wind.
Partly Cloudy

 Thursday

Thursday: Sunny and hot, with a high near 100. West wind 5 to 10 mph.
Hot

 Thursday
Night
Thursday Night: Mostly clear, with a low around 76.
Mostly Clear

 Friday

Friday: Sunny and hot, with a high near 97.
Hot

 Friday
Night
Friday Night: Mostly clear, with a low around 71.
Mostly Clear

 Independence
Day
Independence Day: A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.
Mostly Sunny
then Chance
T-storms
Hi 90 °F Lo 69 °F Hi 96 °F Lo 75 °F Hi 100 °F Lo 76 °F Hi 97 °F Lo 71 °F Hi 92 °F

Extreme Heat Watch
 

Today
 
 Mostly sunny and hot, with a high near 90. Calm wind becoming southwest around 5 mph.
Tonight
 
 A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 A slight chance of showers and thunderstorms between 2pm and 3pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 111. West wind around 5 mph. Chance of precipitation is 20%.
Wednesday Night
 
 Partly cloudy, with a low around 75. Calm wind.
Thursday
 
 Sunny and hot, with a high near 100. West wind 5 to 10 mph.
Thursday Night
 
 Mostly clear, with a low around 76.
Friday
 
 Sunny and hot, with a high near 97.
Friday Night
 
 Mostly clear, with a low around 71.
Independence Day
 
 A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.
Saturday Night
 
 A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Sunday
 
 Mostly sunny, with a high near 89.
Sunday Night
 
 Partly cloudy, with a low around 66.
Monday
 
 Mostly sunny, with a high near 86.

 

Forecast from NOAA-NWS for Lakeport NH.