National Weather Service Forecast for: Horn Lake MS
Issued by: National Weather Service Memphis, TN
Updated: 6:15 am CDT Jun 22, 2026
 
Today

Today: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 83. Southwest wind around 10 mph becoming west northwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
T-storms then
Showers
Likely
 Tonight

Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Mostly cloudy, with a low around 68. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Chance
Showers

 Tuesday

Tuesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and noon. Mostly sunny, with a high near 84. North northeast wind around 5 mph. Chance of precipitation is 40%.
Chance
Showers then
Mostly Sunny
 Tuesday
Night
Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 69. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Mostly Clear
then Chance
Showers and
Patchy Fog
 Wednesday

Wednesday: 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. Partly sunny, with a high near 86. South southeast wind around 5 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
T-storms
Likely

 Wednesday
Night
Wednesday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
T-storms
Likely then
Chance
Showers
 Thursday

Thursday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind around 5 mph.
Chance
T-storms

 Thursday
Night
Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.
Slight Chance
T-storms then
Chance
Showers
 Friday

Friday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Slight Chance
T-storms
Hi 83 °F Lo 68 °F Hi 84 °F Lo 69 °F Hi 86 °F Lo 71 °F Hi 88 °F Lo 73 °F Hi 90 °F

Flood Watch
 

Today
 
 Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 83. Southwest wind around 10 mph becoming west northwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tonight
 
 A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Mostly cloudy, with a low around 68. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Tuesday
 
 A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and noon. Mostly sunny, with a high near 84. North northeast wind around 5 mph. Chance of precipitation is 40%.
Tuesday Night
 
 A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 69. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Wednesday
 
 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. Partly sunny, with a high near 86. South southeast wind around 5 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
 
 Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
 
 A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind around 5 mph.
Thursday Night
 
 A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.
Friday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 20%.
Saturday
 
 Mostly sunny, with a high near 91.
Saturday Night
 
 Partly cloudy, with a low around 76.
Sunday
 
 Mostly sunny, with a high near 92.

 

Forecast from NOAA-NWS for Horn Lake MS.