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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Fulton, Oswego County Airport (KFZY)

Lat: 43.35°NLon: 76.39°WElev: 476ft.

Mostly Cloudy

68°F

20°C

Humidity 78%
Wind Speed NW 12 mph
Barometer 30.05 in (1017.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 28 Aug 8:54 am EDT
Extended Forecast for

Altmar NY

  • Today

    Today: Isolated showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 71. Northwest wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 71 °F

    Isolated
    Showers then
    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. Light and variable wind.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 53. Light southeast wind.

    Low: 53 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 79. Light and variable wind becoming west around 6 mph in the morning.

    High: 79 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers after 2pm. Mostly cloudy, with a high near 79. Calm wind. Chance of precipitation is 30%.

    High: 79 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers

Detailed Forecast

Today
Isolated showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 71. Northwest wind 6 to 9 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 47. Light and variable wind.
Saturday
Mostly sunny, with a high near 75. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 53. Light southeast wind.
Sunday
Partly sunny, with a high near 79. Light and variable wind becoming west around 6 mph in the morning.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 40%.
Monday
A chance of showers after 2pm. Mostly cloudy, with a high near 79. Calm wind. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Wednesday
Showers likely. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Altmar NY
 43.51°N 76.01°W (Elev. 571 ft)
Last Update:
7:57 am EDT Aug 28, 2026
Forecast Valid:
9am EDT Aug 28, 2026-6pm EDT Sep 3, 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