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

Hays, Hays Regional Airport (KHYS)

Lat: 38.85°NLon: 99.27°WElev: 1998ft.

Partly Cloudy

56°F

13°C

Humidity 55%
Wind Speed E 9 mph
Barometer 30.17 in (1021.5 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 20 May 9:56 pm CDT
Extended Forecast for

Catharine KS

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Cloudy, with a low around 44. East wind 8 to 13 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 63. East southeast wind 9 to 13 mph. Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 3am. Cloudy, with a low around 49. East southeast wind 7 to 14 mph.

    Low: 49 °F

    Chance
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 71. Southeast wind 7 to 10 mph becoming west northwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 46. North northwest wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Cloudy, with a low around 44. East wind 8 to 13 mph. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 63. East southeast wind 9 to 13 mph. Chance of precipitation is 30%.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 3am. Cloudy, with a low around 49. East southeast wind 7 to 14 mph.
Friday
Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 71. Southeast wind 7 to 10 mph becoming west northwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 46. North northwest wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 53.
Memorial Day
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Catharine KS
 38.92°N 99.21°W (Elev. 1998 ft)
Last Update:
6:36 pm CDT May 20, 2026
Forecast Valid:
10pm CDT May 20, 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