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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Fulton, Oswego County Airport (KFZY)

Lat: 43.35°NLon: 76.39°WElev: 476ft.

Fair

52°F

11°C

Humidity 100%
Wind Speed NE 3 mph
Barometer 30.14 in (1020.7 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Aug 2:54 am EDT
Extended Forecast for

2 Miles NW Altmar NY

  • Overnight

    Overnight: Mostly clear, with a low around 49. North wind around 6 mph.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. Northeast wind around 6 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. Light and variable wind becoming east around 5 mph after midnight.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. South wind around 6 mph.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 60. Southeast wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 76. Southeast wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 58. Light northeast wind. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 77. North wind 5 to 7 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 49. North wind around 6 mph.
Monday
Sunny, with a high near 75. Northeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 50. Light and variable wind becoming east around 5 mph after midnight.
Tuesday
Partly sunny, with a high near 78. South wind around 6 mph.
Tuesday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 60. Southeast wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 76. Southeast wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 58. Light northeast wind. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 77. North wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 60.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Sunday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Altmar NY
 43.53°N 76.03°W (Elev. 545 ft)
Last Update:
1:36 am EDT Aug 18, 2025
Forecast Valid:
3am EDT Aug 18, 2025-6pm EDT Aug 24, 2025
 
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