National Weather Service Forecast for: Melbourne FL
Issued by: National Weather Service Melbourne, FL
Updated: 9:29 pm EDT Jun 18, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 79. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Chance
Showers
 Juneteenth

Juneteenth: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 110. South southwest wind 5 to 10 mph.
Mostly Sunny
then Chance
T-storms
 Friday
Night
Friday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 78. South wind around 5 mph. Chance of precipitation is 40%.
Chance
T-storms then
Mostly Cloudy
 Saturday

Saturday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 92. Heat index values as high as 106. West wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 80%.
Slight Chance
T-storms then
T-storms
 Saturday
Night
Saturday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 76. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
T-storms then
Chance
Showers
 Sunday

Sunday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. West wind 5 to 10 mph becoming east in the afternoon.
Sunny then
Chance
T-storms
 Sunday
Night
Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming south southwest after midnight.
Chance
T-storms then
Partly Cloudy
 Monday

Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. West southwest wind 5 to 10 mph becoming east in the afternoon.
Sunny then
Slight Chance
T-storms
 Monday
Night
Monday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. South southwest wind around 5 mph.
Slight Chance
T-storms then
Partly Cloudy
Lo 79 °F Hi 95 °F Lo 78 °F Hi 92 °F Lo 76 °F Hi 90 °F Lo 78 °F Hi 92 °F Lo 78 °F

 

Tonight
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 79. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
 
 A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 110. South southwest wind 5 to 10 mph.
Friday Night
 
 A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 78. South wind around 5 mph. Chance of precipitation is 40%.
Saturday
 
 A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 92. Heat index values as high as 106. West wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 80%.
Saturday Night
 
 Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 76. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Sunday
 
 A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. West wind 5 to 10 mph becoming east in the afternoon.
Sunday Night
 
 A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming south southwest after midnight.
Monday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. West southwest wind 5 to 10 mph becoming east in the afternoon.
Monday Night
 
 A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. South southwest wind around 5 mph.
Tuesday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. West southwest wind 5 to 10 mph becoming east southeast in the afternoon.
Tuesday Night
 
 A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78. South wind 5 to 10 mph.
Wednesday
 
 A 30 percent chance of showers and thunderstorms. Sunny, with a high near 92. West southwest wind 5 to 10 mph becoming east southeast in the afternoon.
Wednesday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. South southeast wind around 5 mph becoming southwest after midnight.
Thursday
 
 A 30 percent chance of showers and thunderstorms. Sunny, with a high near 92. Southwest wind 5 to 10 mph becoming east southeast in the afternoon.

 

Forecast from NOAA-NWS for Melbourne FL.