Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Current conditions at

Williamson-Sodus Airport (KSDC)

Lat: 43.23°NLon: 77.12°WElev: 424ft.

Fair

90°F

32°C

Humidity 46%
Wind Speed SE 6 mph
Barometer 29.98 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 12 Jul 2:55 pm EDT
Extended Forecast for

Ontario NY

Heat Advisory July 12, 03:06pm until July 12, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 12, 03:06pm until July 12, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 91 °F

    Hot

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 5am.  Partly cloudy, with a low around 74. East wind around 7 mph becoming south after midnight.  Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms, mainly before 5pm, then showers likely and possibly a thunderstorm after 5pm.  High near 88. Heat index values as high as 97. South wind around 8 mph becoming northwest in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Chance
    T-storms then
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 69. South wind around 5 mph becoming west after midnight.  Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 86. Northwest wind around 6 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. Calm wind becoming southwest around 6 mph after midnight.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Southwest wind around 5 mph becoming northwest in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. Calm wind becoming south around 5 mph after midnight.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 91. Heat index values as high as 101. East wind around 6 mph.
Tonight
A chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 74. East wind around 7 mph becoming south after midnight. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms, mainly before 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 88. Heat index values as high as 97. South wind around 8 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 69. South wind around 5 mph becoming west after midnight. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 86. Northwest wind around 6 mph.
Monday Night
Mostly clear, with a low around 67. Calm wind becoming southwest around 6 mph after midnight.
Tuesday
Sunny, with a high near 89. Southwest wind around 5 mph becoming northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 71. Calm wind becoming south around 5 mph after midnight.
Wednesday
Mostly sunny and hot, with a high near 90.
Wednesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Friday Night
A chance of thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario NY
 43.23°N 77.35°W (Elev. 423 ft)
1:56 pm EDT Jul 12, 2025
3pm EDT Jul 12, 2025-6pm EDT Jul 19, 2025
 
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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