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 >

Hazardous Weather Conditions

Current conditions at

Grove, Grove Municipal Airport (KGMJ)

Lat: 36.61°NLon: 94.74°WElev: 833ft.

Overcast

59°F

15°C

Humidity NA
Wind Speed Vrbl 3 mph
Barometer 30.11 in
Dewpoint N/A
Visibility 10.00 mi
Last update 21 May 12:35 am CDT
Extended Forecast for

Ketchum OK

  • Overnight

    Overnight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 57. Northeast wind around 5 mph becoming calm.

    Low: 57 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 73. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 62. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 62 °F

    Showers

  • Friday

    Friday: Showers and thunderstorms, mainly before 1pm. High near 76. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 76 °F

    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. East wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 60 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Calm wind becoming southwest around 5 mph.

    High: 79 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 62. Northeast wind around 5 mph becoming calm.

    Low: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 57. Northeast wind around 5 mph becoming calm.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 73. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm. Low around 62. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday
Showers and thunderstorms, mainly before 1pm. High near 76. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
A slight chance of showers between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. East wind around 5 mph becoming calm. Chance of precipitation is 40%.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Calm wind becoming southwest around 5 mph.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Calm wind becoming northeast around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 62. Northeast wind around 5 mph becoming calm.
Memorial Day
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind 5 to 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ketchum OK
 36.53°N 95.03°W
Last Update:
11:50 pm CDT May 20, 2026
Forecast Valid:
12am CDT May 21, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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