Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Williamson-Sodus Airport (KSDC)

Lat: 43.23°NLon: 77.12°WElev: 424ft.

Fair

66°F

19°C

Humidity 78%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 28 Jun 9:35 pm EDT
Extended Forecast for

4 Miles SE Alton NY

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 89. Light northeast wind becoming north 5 to 10 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am.  Partly cloudy, with a low around 70. East wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Mostly cloudy and hot, with a high near 91. Heat index values as high as 98. South wind 3 to 6 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 76. Southwest wind 3 to 5 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 76 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 94. Southwest wind 6 to 9 mph.

    High: 94 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 76. Southwest wind 5 to 7 mph.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 95. West wind 5 to 7 mph.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. Calm wind.
Monday
Mostly sunny, with a high near 89. Light northeast wind becoming north 5 to 10 mph in the afternoon.
Monday Night
A slight chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 70. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy and hot, with a high near 91. Heat index values as high as 98. South wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. Southwest wind 3 to 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny and hot, with a high near 94. Southwest wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 76. Southwest wind 5 to 7 mph.
Thursday
Sunny and hot, with a high near 95. West wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 76.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Independence Day
A chance of showers and thunderstorms. Partly sunny and hot, with a high near 90. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Alton NY
 43.17°N 77°W (Elev. 456 ft)
7:57 pm EDT Jun 28, 2026
9pm EDT Jun 28, 2026-6pm EDT Jul 5, 2026
 
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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