National Weather Service Forecast for: Broken Arrow OK
Issued by: National Weather Service Tulsa, OK
Updated: 5:50 pm CDT Sep 12, 2026
 
Tonight

Tonight: A 20 percent chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 74. Southeast wind around 5 mph.
Slight Chance
T-storms
 Sunday

Sunday: Sunny and hot, with a high near 100. Heat index values as high as 108. East wind 5 to 10 mph becoming south in the morning.
Hot
 Sunday
Night
Sunday Night: Mostly clear, with a low around 76. South wind around 10 mph.
Mostly Clear
 Monday

Monday: Sunny and hot, with a high near 100. Heat index values as high as 109. South wind 10 to 15 mph, with gusts as high as 25 mph.
Hot
 Monday
Night
Monday Night: Mostly clear, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph.
Mostly Clear
 Tuesday

Tuesday: Sunny and hot, with a high near 100. South wind 10 to 15 mph, with gusts as high as 20 mph.
Hot
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 76. South wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 97. South wind 5 to 15 mph, with gusts as high as 20 mph.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph.
Mostly Clear
Lo 74 °F Hi 100 °F Lo 76 °F Hi 100 °F Lo 77 °F Hi 100 °F Lo 76 °F Hi 97 °F Lo 75 °F

Hazardous Weather Outlook
Heat Advisory
 

Tonight
 
 A 20 percent chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 74. Southeast wind around 5 mph.
Sunday
 
 Sunny and hot, with a high near 100. Heat index values as high as 108. East wind 5 to 10 mph becoming south in the morning.
Sunday Night
 
 Mostly clear, with a low around 76. South wind around 10 mph.
Monday
 
 Sunny and hot, with a high near 100. Heat index values as high as 109. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
 
 Mostly clear, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph.
Tuesday
 
 Sunny and hot, with a high near 100. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
 
 Mostly clear, with a low around 76. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
 
 Sunny, with a high near 97. South wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
 
 Mostly clear, with a low around 75. South wind 5 to 10 mph.
Thursday
 
 Mostly sunny, with a high near 95. South wind 5 to 10 mph.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southeast wind 5 to 10 mph.
Friday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. South wind 5 to 10 mph.
Friday Night
 
 A 20 percent chance of showers. Mostly clear, with a low around 67. South wind 5 to 10 mph becoming northeast after midnight.
Saturday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. North wind around 10 mph.

 

Forecast from NOAA-NWS for Broken Arrow OK.