| National Weather Service Forecast for:
Newcastle OK Issued by: National Weather Service Norman, OK |
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| Updated: 1:27 pm CDT Jul 28, 2026 | ||||||||||||||||||
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| Tonight |
Partly cloudy, with a low around 78. South wind 8 to 11 mph. |
| Wednesday |
Mostly sunny and hot, with a high near 102. Heat index values as high as 106. Southwest wind 7 to 10 mph. |
| Wednesday Night |
Mostly clear, with a low around 77. South southeast wind 8 to 13 mph, with gusts as high as 20 mph. |
| Thursday |
Sunny and hot, with a high near 102. Heat index values as high as 107. South wind 8 to 13 mph, with gusts as high as 20 mph. |
| Thursday Night |
Partly cloudy, with a low around 77. South wind around 14 mph, with gusts as high as 21 mph. |
| Friday |
Mostly sunny and hot, with a high near 102. |
| Friday Night |
Mostly clear, with a low around 72. |
| Saturday |
Sunny, with a high near 93. |
| Saturday Night |
Clear, with a low around 67. |
| Sunday |
Sunny, with a high near 92. |
| Sunday Night |
Clear, with a low around 68. |
| Monday |
Sunny, with a high near 95. |
| Monday Night |
Clear, with a low around 72. |
| Tuesday |
Sunny and hot, with a high near 97. |
Forecast from NOAA-NWS for Newcastle OK.
