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

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Ardmore, Ardmore Municipal Airport (KADM)

Lat: 34.3°NLon: 97.02°WElev: 761ft.

Overcast

72°F

22°C

Humidity 83%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 20 May 9:50 pm CDT
Extended Forecast for

Sulphur OK

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 59. Northeast wind around 5 mph.

    Low: 59 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 71. East wind 5 to 7 mph becoming west southwest in the afternoon. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 71 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 61. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    T-storms then
    Showers

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.

    High: 80 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 62. Light southeast wind. Chance of precipitation is 80%.

    Low: 62 °F

    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.

    High: 80 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    T-storms
    Likely then
    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 79.

    High: 79 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 59. Northeast wind around 5 mph.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 71. East wind 5 to 7 mph becoming west southwest in the afternoon. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 61. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Showers and possibly a thunderstorm. Low around 62. Light southeast wind. Chance of precipitation is 80%.
Saturday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 79.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Memorial Day
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sulphur OK
 34.52°N 96.98°W
Last Update:
8:22 pm CDT May 20, 2026
Forecast Valid:
12am CDT May 21, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation