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

Canandaigua Airport (KIUA)

Lat: 42.91°NLon: 77.33°WElev: 814ft.

Fair

75°F

24°C

Humidity 66%
Wind Speed NW 3 mph
Barometer 29.90 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 19 Aug 6:35 pm EDT
Extended Forecast for

4 Miles NNE Hemlock NY

  • Tonight

    Tonight: A slight chance of showers between 10pm and 1am.  Patchy fog after 5am.  Otherwise, increasing clouds, with a low around 58. Northwest wind around 6 mph becoming light and variable.  Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A slight chance of showers between 10am and 11am.  Patchy fog before 8am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 75. Calm wind becoming northeast around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, sunny, with a high near 79. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Northeast wind around 5 mph becoming light and variable  in the evening.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 80. South wind 6 to 9 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Slight Chance
    T-storms then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am.  Low around 60. South wind around 7 mph.  Chance of precipitation is 80%.

    Low: 60 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers after 8am.  Partly sunny, with a high near 76. West wind 8 to 13 mph.  Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers between 10pm and 1am. Patchy fog after 5am. Otherwise, increasing clouds, with a low around 58. Northwest wind around 6 mph becoming light and variable. Chance of precipitation is 20%.
Thursday
A slight chance of showers between 10am and 11am. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 75. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 54. Light and variable wind.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 79. Calm wind becoming northeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 60. Northeast wind around 5 mph becoming light and variable in the evening.
Saturday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 80. South wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 60. South wind around 7 mph. Chance of precipitation is 80%.
Sunday
A chance of showers after 8am. Partly sunny, with a high near 76. West wind 8 to 13 mph. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Hemlock NY
 42.83°N 77.57°W (Elev. 909 ft)
6:30 pm EDT Aug 19, 2026
6pm EDT Aug 19, 2026-6pm EDT Aug 26, 2026
 
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Additional Resources

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