National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harlan (KI35)

Lat: 36.86°NLon: 83.36°WElev: 1551ft.

Partly Cloudy

86°F

30°C

Humidity 58%
Wind Speed Calm
Barometer 30.22 in
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Heat Index90°F (32°C)
Last update 11 Aug 11:55 am EDT
Extended Forecast for

Viper KY

  • This Afternoon

    This Afternoon: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 96. Calm wind. Chance of precipitation is 40%.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Patchy fog after midnight. Otherwise, mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 11am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 88. Heat index values as high as 97. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 86. Light west wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    T-storms and
    Patchy Fog
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely before 8pm. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely and
    Patchy Fog
    then Areas
    Fog

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 89.

    High: 89 °F

    Areas Fog
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 96. Calm wind. Chance of precipitation is 40%.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Patchy fog after midnight. Otherwise, mostly clear, with a low around 67. Calm wind.
Tuesday
A chance of showers, with thunderstorms also possible after 11am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 88. Heat index values as high as 97. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 70. Calm wind.
Wednesday
Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 86. Light west wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 87. Chance of precipitation is 60%.
Thursday Night
Showers likely before 8pm. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 68. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 89.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 68.
Saturday
A 20 percent chance of showers and thunderstorms. Areas of fog. Otherwise, mostly sunny and hot, with a high near 90.
Saturday Night
A 10 percent chance of showers and thunderstorms. Patchy fog. Otherwise, partly cloudy, with a low around 68.
Sunday
A 20 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly sunny and hot, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Viper KY
 37.18°N 83.14°W (Elev. 1001 ft)
Last Update:
12:05 pm EDT Aug 11, 2025
Forecast Valid:
12pm EDT Aug 11, 2025-6pm EDT Aug 17, 2025
 
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Additional Resources

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