| Sat May 18 | Sun May 19 | Mon May 20 | Tue May 21 | |
| Tmin 18-06 |
22°C | 21°C | 18°C | 16°C |
| Tmax 06-18 |
37°C | 35°C | 34°C | 28°C |
| morning 24-06 |
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| a.m. 06-12 |
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| p.m. 12-18 |
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| evening 18-24 |
| Nearby Forecast Locations - Fort Sill | Distance |
| Lawton | 4.0 km |
| Forecast: Fort Sill Region In the next few days, it's mostly sunny. Rain will not occur during daytime. The daily high falls from 35 degrees on Sunday to 28 degrees on Tuesday. On Sunday a fresh wind from the south. |