Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >

Hazardous Weather Conditions

Current conditions at

Williamson-Sodus Airport (KSDC)

Lat: 43.23°NLon: 77.12°WElev: 424ft.

Fair

64°F

18°C

Humidity 83%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 20 Jun 9:35 pm EDT
Extended Forecast for

Lyons NY

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, mainly between 1am and 4am.  Partly cloudy, with a low around 62. Southwest wind 3 to 5 mph.  Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 87. South wind 3 to 7 mph.  Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly after 2am.  Mostly cloudy, with a low around 74. South wind 7 to 10 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 8am.  Mostly sunny and hot, with a high near 92. Heat index values as high as 105. West wind 10 to 15 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Chance
    T-storms then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. West wind around 6 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 94. West wind 6 to 9 mph.

    High: 94 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. West wind around 6 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92. West wind 6 to 10 mph.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms, mainly between 1am and 4am. Partly cloudy, with a low around 62. Southwest wind 3 to 5 mph. Chance of precipitation is 20%.
Saturday
A slight chance of showers and thunderstorms after 10am. Partly sunny, with a high near 87. South wind 3 to 7 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 74. South wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms before 8am. Mostly sunny and hot, with a high near 92. Heat index values as high as 105. West wind 10 to 15 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 75. West wind around 6 mph.
Monday
Sunny and hot, with a high near 94. West wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 75. West wind around 6 mph.
Tuesday
Sunny and hot, with a high near 92. West wind 6 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lyons NY
 43.06°N 76.99°W (Elev. 404 ft)
7:36 pm EDT Jun 20, 2025
9pm EDT Jun 20, 2025-6pm EDT Jun 27, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database