National Weather Service Forecast for: Union Park FL
Issued by: National Weather Service Melbourne, FL
Updated: 2:39 am EDT Jun 22, 2026
 
Today

Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 96. Heat index values as high as 104. Calm wind becoming southwest around 5 mph in the afternoon.
Patchy Fog
then Chance
T-storms
 Tonight

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 76. West southwest wind around 5 mph.
Chance
T-storms then
Mostly Clear
 Tuesday

Tuesday: A 10 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 96. Heat index values as high as 104. West wind 5 to 10 mph.
Sunny then
Slight Chance
T-storms
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 76. West wind 5 to 10 mph.
Mostly Clear

 Wednesday

Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 96. West wind around 5 mph. Chance of precipitation is 50%.
Slight Chance
T-storms then
Chance
T-storms
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 75. Southwest wind around 5 mph. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
 Thursday

Thursday: A slight chance of thunderstorms, then showers and thunderstorms likely after 8am. Mostly sunny and hot, with a high near 95. South southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Slight Chance
T-storms then
T-storms
Likely
 Thursday
Night
Thursday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 77. South wind around 5 mph. Chance of precipitation is 60%.
T-storms
Likely

 Friday

Friday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95. South southwest wind around 5 mph.
Sunny then
Chance
T-storms
Hi 96 °F Lo 76 °F Hi 96 °F Lo 76 °F Hi 96 °F Lo 75 °F Hi 95 °F Lo 77 °F Hi 95 °F

 

Today
 
 A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 96. Heat index values as high as 104. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
 
 A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 76. West southwest wind around 5 mph.
Tuesday
 
 A 10 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 96. Heat index values as high as 104. West wind 5 to 10 mph.
Tuesday Night
 
 Mostly clear, with a low around 76. West wind 5 to 10 mph.
Wednesday
 
 A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 96. West wind around 5 mph. Chance of precipitation is 50%.
Wednesday Night
 
 A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 75. Southwest wind around 5 mph. Chance of precipitation is 30%.
Thursday
 
 A slight chance of thunderstorms, then showers and thunderstorms likely after 8am. Mostly sunny and hot, with a high near 95. South southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday Night
 
 Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 77. South wind around 5 mph. Chance of precipitation is 60%.
Friday
 
 A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95. South southwest wind around 5 mph.
Friday Night
 
 A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 78. Southeast wind around 5 mph.
Saturday
 
 A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 96. Calm wind becoming west southwest around 5 mph in the afternoon.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78. South southeast wind around 5 mph.
Sunday
 
 A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 96. Calm wind becoming north northeast around 5 mph in the afternoon.

 

Forecast from NOAA-NWS for Union Park FL.