| NWS Forecast for: Johnston County Issued by: National Weather Service Norman, OK Last Update: 501 PM CDT Fri Jul 18 2025 |  |
| Tonight: Mostly clear. Humid with lows in the lower 70s. South winds 5 to 10 mph. Heat index values up to 105 early early. Saturday: Sunny with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 105. Saturday Night: Mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph. Sunday: Sunny with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 106. Sunday Night: Mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph. Monday: Sunny. Highs in the upper 90s. Heat index values up to 105. Monday Night: Mostly clear. Lows in the mid 70s. Tuesday: Sunny. Highs in the upper 90s. Tuesday Night: Mostly clear. Lows in the mid 70s. Wednesday: Sunny. Highs in the upper 90s. Heat index values up to 105. Wednesday Night: Mostly clear. Lows in the mid 70s. Thursday: Sunny. Highs in the upper 90s. Heat index values up to 105. Thursday Night: Mostly clear. Lows in the mid 70s. Friday: Sunny. Highs in the upper 90s. Heat index values up to 105 in the afternoon. | |
| Zone Forecast: Johnston County | |
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