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

70°F

21°C

Humidity NA
Wind Speed Calm
Barometer 30.07 in
Dewpoint N/A
Visibility 10.00 mi
Last update 21 May 12:15 pm CDT
Extended Forecast for

3 Miles NNW Zena OK

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 73. East wind around 5 mph becoming northeast. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    T-storms

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 64. Calm wind becoming northeast around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    T-storms then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly between 1pm and 4pm. High near 74. East wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers

  • Friday Night

    Friday Night: A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 76. Calm wind.

    High: 76 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 77. Calm wind.

    High: 77 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Calm wind becoming east around 5 mph.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 73. East wind around 5 mph becoming northeast. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm. Low around 64. Calm wind becoming northeast around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly between 1pm and 4pm. High near 74. East wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 62. Calm wind.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 76. Calm wind.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 77. Calm wind.
Sunday Night
Partly cloudy, with a low around 64. Calm wind.
Memorial Day
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Calm wind becoming east around 5 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. East wind around 5 mph becoming calm.
Tuesday
Showers and thunderstorms likely. Mostly sunny, with a high near 79. Southeast wind around 5 mph. Chance of precipitation is 60%.
Tuesday Night
A 30 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 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Zena OK
 36.55°N 94.86°W
Last Update:
12:50 pm CDT May 21, 2026
Forecast Valid:
1pm 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