Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Current conditions at

Big Sandy Regional Airport (KSJS)

Lat: 37.75°NLon: 82.64°WElev: 1220ft.

Mostly Cloudy

69°F

21°C

Humidity 98%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 17 Aug 2:50 am EDT
Extended Forecast for

Thelma KY

Flood Watch August 17, 03:13am until August 18, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 17, 03:13am until August 18, 12:00am

    NOW until 12:00am Tue

    Flood Watch

  • Overnight

    Low: 72 °F

    Chance
    T-storms and
    Patchy Fog

  • Monday

    Monday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm.  Areas of fog before 10am. High near 87. Heat index values as high as 98. Calm wind.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Chance
    T-storms and
    Areas Fog
    then T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers after 3am.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 69. Calm wind.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    T-storms
    Likely then
    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A 10 percent chance of showers before 7am.  Areas of fog before 10am.  Otherwise, partly sunny, with a high near 84. Calm wind.

    High: 84 °F

    Slight Chance
    Showers and
    Areas Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 2am.  Mostly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 72. Calm wind.
Monday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. Areas of fog before 10am. High near 87. Heat index values as high as 98. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers after 3am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 10 percent chance of showers before 7am. Areas of fog before 10am. Otherwise, partly sunny, with a high near 84. Calm wind.
Tuesday Night
Mostly clear, with a low around 64. Calm wind.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 68.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 50%.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Thelma KY
 37.81°N 82.76°W (Elev. 636 ft)
2:56 am EDT Aug 17, 2026
3am EDT Aug 17, 2026-6pm EDT Aug 23, 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