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

Frost Advisory for the Champlain Valley from midnight tonight to 7 AM Thursday

Temperatures in the Champlain Valley as low as 30 will result in frost formation that could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. Take steps now to protect tender plants from the cold. Read More >

Hazardous Weather Conditions

Current conditions at

Plattsburgh International Airport (KPBG)

Lat: 44.65°NLon: 73.47°WElev: 236ft.

Fair and Breezy

55°F

13°C

Humidity 30%
Wind Speed N 22 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 30 Apr 2:53 pm EDT
Extended Forecast for

3 Miles SW Grand Isle VT

Frost Advisory May 1, 12:00am until May 1, 07:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Patchy frost after 2am. Otherwise, partly cloudy, with a low around 33. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 24 mph.

    Low: 33 °F

    Partly Cloudy
    then Patchy
    Frost

  • Thursday

    Thursday: Patchy frost before 7am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 63 °F

    Patchy Frost
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 11pm. Cloudy, with a low around 51. South wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers. Mostly cloudy, with a high near 74. South wind 16 to 18 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 51. South wind 3 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 61. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 45. Light and variable wind becoming southwest 5 to 7 mph after midnight.

    Low: 45 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 60. Northwest wind 9 to 11 mph.

    High: 60 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40. Northwest wind 6 to 8 mph.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy frost after 2am. Otherwise, partly cloudy, with a low around 33. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 24 mph.
Thursday
Patchy frost before 7am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Showers likely, mainly after 11pm. Cloudy, with a low around 51. South wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 74. South wind 16 to 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 51. South wind 3 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 61. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 45. Light and variable wind becoming southwest 5 to 7 mph after midnight.
Sunday
Partly sunny, with a high near 60. Northwest wind 9 to 11 mph.
Sunday Night
Partly cloudy, with a low around 40. Northwest wind 6 to 8 mph.
Monday
Mostly sunny, with a high near 62. North wind 5 to 7 mph becoming calm in the afternoon.
Monday Night
Partly cloudy, with a low around 45. Calm wind becoming south around 5 mph after midnight.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 66. South wind 5 to 7 mph.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50. Light and variable wind becoming northwest 8 to 13 mph in the evening.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 66. North wind around 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Grand Isle VT
 44.68°N 73.34°W (Elev. 167 ft)
Last Update:
2:46 pm EDT Apr 30, 2025
Forecast Valid:
3pm EDT Apr 30, 2025-6pm EDT May 7, 2025
 
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Additional Resources

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Chance of Precipitation