Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Dansville, Dansville Municipal Airport (KDSV)

Lat: 42.57°NLon: 77.71°WElev: 659ft.

Fair

59°F

15°C

Humidity 96%
Wind Speed Calm
Barometer 30.04 in (1017.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 20 Aug 5:54 am EDT
Extended Forecast for

3 Miles SSE Swain NY

  • Today

    Today: A slight chance of showers between 10am and 1pm.  Patchy fog before 8am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 72. Light northeast wind.  Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tonight

    Tonight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Light and variable wind.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers after 2am.  Mostly clear, with a low around 58. Light southeast wind.  Chance of precipitation is 20%.

    Low: 58 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after 2pm.  High near 77. South wind 5 to 7 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Low around 58. South wind 3 to 6 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers after 8am.  Partly sunny, with a high near 73. West wind 7 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53. West wind 5 to 8 mph.

    Low: 53 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 2pm.  Mostly sunny, with a high near 70. Chance of precipitation is 30%.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A slight chance of showers between 10am and 1pm. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 72. Light northeast wind. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 52. Calm wind.
Friday
Sunny, with a high near 77. Light and variable wind.
Friday Night
A slight chance of showers after 2am. Mostly clear, with a low around 58. Light southeast wind. Chance of precipitation is 20%.
Saturday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 77. South wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 58. South wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers after 8am. Partly sunny, with a high near 73. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 53. West wind 5 to 8 mph.
Monday
A chance of showers after 2pm. Mostly sunny, with a high near 70. Chance of precipitation is 30%.
Monday Night
A chance of showers before 8pm. Partly cloudy, with a low around 53. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Swain NY
 42.45°N 77.87°W (Elev. 1900 ft)
6:11 am EDT Aug 20, 2026
6am EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database