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

Isaias Rapidly Moving North with Tropical Storm Impacts; Critical Fire Weather Conditions in the West

Isaias speed will increase some as it heads into New England, including New York City and other larger New England cities today and tonight; and the center is forecast to be in Canada by Wednesday morning. Very heavy rain and flash flooding, damaging winds, storm surge, and isolated tornadoes can be expected. In the West, critical fire conditions continue due to hot, dry, and breezy conditions. Read More >

Hazardous Weather Conditions

Current conditions at

Penn Yan, Penn Yan Airport (KPEO)

Lat: 42.64°NLon: 77.05°WElev: 902ft.

Light Rain

21°C

70°F

Humidity 90%
Wind Speed E 6 km/h
Barometer 1010.5 mb (29.86 in)
Dewpoint 19°C (67°F)
Visibility 14 km
Last update 4 Aug 12:53 pm EDT
Extended Forecast for

Lyons NY

  • This
    Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 24. Southeast wind 14 to 16 km/h. Chance of precipitation is 80%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Showers

    High: 24 °C

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 17. West wind 11 to 16 km/h. Chance of precipitation is 50%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Chance
    T-storms then
    Chance
    Showers

    Low: 17 °C

  • Wednesday

    Wednesday: A slight chance of showers before noon. Mostly sunny, with a high near 26. West wind 16 to 18 km/h. Chance of precipitation is 20%.

    Slight Chance
    Showers then
    Sunny

    High: 26 °C

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 14. West wind around 10 km/h.

    Mostly Clear

    Low: 14 °C

  • Thursday

    Thursday: Sunny, with a high near 27. West wind 5 to 8 km/h becoming calm in the morning.

    Sunny

    High: 27 °C

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 14.

    Mostly Clear

    Low: 14 °C

  • Friday

    Friday: Mostly sunny, with a high near 28.

    Mostly Sunny

    High: 28 °C

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 16.

    Partly Cloudy

    Low: 16 °C

  • Saturday

    Saturday: Mostly sunny, with a high near 29.

    Mostly Sunny

    High: 29 °C

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 24. Southeast wind 14 to 16 km/h. Chance of precipitation is 80%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 17. West wind 11 to 16 km/h. Chance of precipitation is 50%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers before noon. Mostly sunny, with a high near 26. West wind 16 to 18 km/h. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 14. West wind around 10 km/h.
Thursday
Sunny, with a high near 27. West wind 5 to 8 km/h becoming calm in the morning.
Thursday Night
Mostly clear, with a low around 14.
Friday
Mostly sunny, with a high near 28.
Friday Night
Partly cloudy, with a low around 16.
Saturday
Mostly sunny, with a high near 29.
Saturday Night
Mostly clear, with a low around 17.
Sunday
Sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 19.
Monday
Mostly sunny, with a high near 31.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Lyons NY
 43.06°N 76.99°W (Elev. 123 m)
Last Update:
1:38 pm EDT Aug 4, 2020
Forecast Valid:
1pm EDT Aug 4, 2020-6pm EDT Aug 10, 2020
 
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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