Severe Thunderstorms and Heavy Rain in the Mississippi Valley; Fire Weather Concerns in the Southern High Plains

Severe thunderstorms and the threat for excessive rainfall will move into the mid-Mississippi and lower Ohio Valleys today. There is potential for a few strong tornadoes, damaging wind gusts, large hail, and scattered flash flooding. Low humidity and windy conditions will continue to produce elevated to critical fire weather conditions across the southern High Plains into midweek. Read More >

Current conditions at

Greenville Spartanburg International Airport (KGSP)

Lat: 34.91°NLon: 82.21°WElev: 955ft.

Fair

68°F

20°C

Humidity 47%
Wind Speed S 6 mph
Barometer 30.17 in (1020.9 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 27 Apr 3:53 pm EDT
Extended Forecast for

Lyman SC

  • Tonight

    Tonight: Mostly clear, with a low around 52. East southeast wind 3 to 6 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers, mainly before noon.  Patchy fog between 9am and 10am.  Otherwise, increasing clouds, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 3am, then showers likely and possibly a thunderstorm after 3am.  Increasing clouds, with a low around 57. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm.  High near 78. Southwest wind 6 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 55. North northwest wind around 7 mph.  Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 2pm.  Partly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 2am.  Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 52. East southeast wind 3 to 6 mph.
Tuesday
A 40 percent chance of showers, mainly before noon. Patchy fog between 9am and 10am. Otherwise, increasing clouds, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 3am, then showers likely and possibly a thunderstorm after 3am. Increasing clouds, with a low around 57. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. High near 78. Southwest wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. North northwest wind around 7 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 50.
Friday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 70.
Friday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Saturday
Showers likely, mainly before 8am. Partly sunny, with a high near 65. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Lyman SC
 34.95°N 82.11°W (Elev. 833 ft)
2:23 pm EDT Apr 27, 2026
4pm EDT Apr 27, 2026-6pm EDT May 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database