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

Barre / Montpelier, Knapp State Airport (KMPV)

Lat: 44.2°NLon: 72.57°WElev: 1165ft.

Fair

76°F

24°C

Humidity 31%
Wind Speed Calm
Barometer 30.17 in (1021.5 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 21 Aug 2:51 pm EDT
Extended Forecast for

Williamstown VT

  • Tonight

    Tonight: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 76. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 58. South wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm, mainly after 5pm. Mostly cloudy, with a high near 75. South wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 56. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 75. Southwest wind 3 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 73. West wind 3 to 7 mph.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Chance
    Showers then
    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 51. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 76. Calm wind becoming southeast around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 58. South wind around 5 mph becoming calm in the evening.
Sunday
Showers likely and possibly a thunderstorm, mainly after 5pm. Mostly cloudy, with a high near 75. South wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 56. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 75. Southwest wind 3 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 51. Calm wind.
Tuesday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 73. West wind 3 to 7 mph.
Tuesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 51. Calm wind.
Wednesday
Mostly sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 54. Calm wind.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58. Calm wind.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Williamstown VT
 44.11°N 72.55°W (Elev. 1102 ft)
Last Update:
2:20 pm EDT Aug 21, 2026
Forecast Valid:
3pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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