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

Hazardous Weather Conditions

Current conditions at

Cortland County-Chase Field (KN03)

Lat: 42.59°NLon: 76.21°WElev: 1198ft.

Fog

50°F

10°C

Humidity 100%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 50°F (10°C)
Visibility 0.15 mi
Last update 21 Aug 7:55 am EDT
Extended Forecast for

Groton City NY

Dense Fog Advisory August 21, 08:17am until August 21, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory August 21, 08:17am until August 21, 10:00am

    NOW until 10:00am Fri

    Dense Fog Advisory

  • Today

    High: 75 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. Light northeast wind.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers between 3pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 77. South wind 6 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Sunny then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely after 11pm. Mostly cloudy, with a low around 57. South wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 74. South wind 7 to 9 mph becoming west in the afternoon. Chance of precipitation is 80%.

    High: 74 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Showers then
    Slight Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after 2pm. Partly sunny, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely before 8pm. Partly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely then
    Partly Cloudy

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 75. Light northeast wind.
Tonight
Mostly clear, with a low around 52. Light northeast wind.
Saturday
A chance of showers between 3pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 77. South wind 6 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms, then showers likely after 11pm. Mostly cloudy, with a low around 57. South wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 74. South wind 7 to 9 mph becoming west in the afternoon. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Low around 51. Chance of precipitation is 80%.
Monday
Showers likely, mainly after 2pm. Partly sunny, with a high near 69. Chance of precipitation is 60%.
Monday Night
Showers likely before 8pm. Partly cloudy, with a low around 49. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Thursday
Showers likely. Partly sunny, with a high near 77. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Groton City NY
 42.62°N 76.3°W (Elev. 1375 ft)
Last Update:
6:11 am EDT Aug 21, 2026
Forecast Valid:
8am EDT Aug 21, 2026-6pm EDT Aug 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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