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

68°F

20°C

Humidity 91%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 19 Aug 8:35 pm EDT
Extended Forecast for

2 Miles ENE Hemlock NY

  • Tonight

    Tonight: A slight chance of showers between 11pm and 1am.  Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 58. West wind 3 to 5 mph.  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 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Calm wind becoming northeast around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 11pm.  Otherwise, mostly clear, with a low around 56. Light and variable wind.

    Low: 56 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, sunny, with a high near 78. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Northeast wind around 6 mph becoming south after midnight.

    Low: 61 °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 79. South wind around 8 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °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 61. South wind around 7 mph.  Chance of precipitation is 80%.

    Low: 61 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers after 8am.  Partly sunny, with a high near 74. West wind 7 to 11 mph.  Chance of precipitation is 40%.

    High: 74 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers between 11pm and 1am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 58. West wind 3 to 5 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers between 10am and 11am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 56. Light and variable wind.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 78. Calm wind becoming northeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61. Northeast wind around 6 mph becoming south after midnight.
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 79. South wind around 8 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 61. South wind around 7 mph. Chance of precipitation is 80%.
Sunday
A chance of showers after 8am. Partly sunny, with a high near 74. West wind 7 to 11 mph. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Hemlock NY
 42.79°N 77.55°W (Elev. 1112 ft)
7:57 pm EDT Aug 19, 2026
8pm EDT Aug 19, 2026-6pm EDT Aug 26, 2026
 
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Additional Resources

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