National Weather Service Forecast for: Owasso OK
Issued by: National Weather Service Tulsa, OK
Updated: 2:50 pm CDT Jul 28, 2026
 
This
Afternoon
This Afternoon: Mostly sunny and hot, with a high near 102. Heat index values as high as 110. Southeast wind around 5 mph.
Hot

 Tonight

Tonight: Increasing clouds, with a low around 79. Southeast wind 5 to 10 mph.
Increasing
Clouds

 Wednesday

Wednesday: Mostly sunny and hot, with a high near 100. Heat index values as high as 114. Calm wind becoming southeast around 5 mph in the morning.
Hot

 Wednesday
Night
Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 78. Southeast wind 5 to 10 mph.
Slight Chance
T-storms then
Chance
Showers
 Thursday

Thursday: Partly sunny, with a high near 98. Southeast wind around 10 mph.
Partly Sunny

 Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Partly Cloudy
then Slight
Chance
T-storms
 Friday

Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 101. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Slight Chance
T-storms

 Friday
Night
Friday Night: Mostly clear, with a low around 73. North wind around 10 mph.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 89. North wind around 15 mph, with gusts as high as 25 mph.
Sunny
Hi 102 °F Lo 79 °F Hi 100 °F Lo 78 °F Hi 98 °F Lo 78 °F Hi 101 °F Lo 73 °F Hi 89 °F

Hazardous Weather Outlook
Extreme Heat Warning
Heat Advisory
 

This Afternoon
 
 Mostly sunny and hot, with a high near 102. Heat index values as high as 110. Southeast wind around 5 mph.
Tonight
 
 Increasing clouds, with a low around 79. Southeast wind 5 to 10 mph.
Wednesday
 
 Mostly sunny and hot, with a high near 100. Heat index values as high as 114. Calm wind becoming southeast around 5 mph in the morning.
Wednesday Night
 
 A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 78. Southeast wind 5 to 10 mph.
Thursday
 
 Partly sunny, with a high near 98. Southeast wind around 10 mph.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
 
 A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 101. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Friday Night
 
 Mostly clear, with a low around 73. North wind around 10 mph.
Saturday
 
 Sunny, with a high near 89. North wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
 
 Mostly clear, with a low around 69. North wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
 
 Sunny, with a high near 89. North wind 5 to 10 mph.
Sunday Night
 
 Clear, with a low around 70. Northeast wind 5 to 10 mph.
Monday
 
 Sunny, with a high near 93. East wind 5 to 10 mph.

 

Forecast from NOAA-NWS for Owasso OK.