National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Johnsbury - Fairbanks (K1V4)

Lat: 44.42°NLon: 72.02°WElev: 696ft.

74°F

23°C

Humidity 82%
Wind Speed NA
Barometer 29.94 in (1012.6 mb)
Dewpoint 68°F (20°C)
Visibility NA
Last update 30 Jun 10:54 pm EDT
Extended Forecast for

Lisbon NH

Heat Advisory July 1, 11:00am until July 2, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny and hot, with a high near 93. Heat index values as high as 106. Calm wind becoming west around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight, then a chance of showers after 3am. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Independence Day

    Independence Day: A chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    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 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny and hot, with a high near 93. Heat index values as high as 106. Calm wind becoming west around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before midnight, then a chance of showers after 3am. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 73. Calm wind.
Friday
Mostly sunny and hot, with a high near 92.
Friday Night
Partly cloudy, with a low around 68.
Independence Day
A chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. 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 64. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 63.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 81.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 62.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lisbon NH
 44.2°N 71.92°W (Elev. 600 ft)
Last Update:
8:21 pm EDT Jun 30, 2026
Forecast Valid:
11pm EDT Jun 30, 2026-6pm EDT Jul 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation