Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Lancaster County-mc Whirter Field (KLKR)

Lat: 34.72°NLon: 80.86°WElev: 486ft.

Overcast

81°F

27°C

Humidity 79%
Wind Speed SW 16 G 24 mph
Barometer 29.94 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Jun 8:55 am EDT
Extended Forecast for

4 Miles S Fort Lawn SC

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm.  Mostly cloudy, then gradually becoming sunny, with a high near 92. Southwest wind around 14 mph, with gusts as high as 23 mph.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then showers and possibly a thunderstorm between midnight and 5am, then showers likely after 5am.  Patchy fog after 4am. Low around 69. South southwest wind 5 to 9 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    Showers
    Likely then
    Showers and
    Patchy Fog

  • Juneteenth

    Juneteenth: Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm.  Patchy fog before 10am.  Otherwise, mostly cloudy, with a high near 87. West wind around 7 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Showers
    Likely and
    Patchy Fog

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Mostly cloudy, with a low around 65. Calm wind.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 92.

    High: 92 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. Southwest wind around 14 mph, with gusts as high as 23 mph.
Tonight
Showers and thunderstorms likely before midnight, then showers and possibly a thunderstorm between midnight and 5am, then showers likely after 5am. Patchy fog after 4am. Low around 69. South southwest wind 5 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Juneteenth
Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 87. West wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 65. Calm wind. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 88. Calm wind.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 72.
Monday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92.
Monday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Fort Lawn SC
 34.65°N 80.91°W (Elev. 400 ft)
6:19 am EDT Jun 18, 2026
9am EDT Jun 18, 2026-6pm EDT Jun 24, 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