| NWS Forecast for: Johnston County Issued by: National Weather Service Norman, OK Last Update: 535 PM CDT Fri Jun 5 2026 |  |
| Tonight: Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the lower 70s. Southeast winds 5 to 10 mph. Chance of rain 60 percent. Saturday: Showers with a chance of thunderstorms. Humid with highs in the lower 80s. Southeast winds 5 to 10 mph. Chance of rain 90 percent. Saturday Night: Showers with a chance of thunderstorms. Humid with lows around 70. Southeast winds 5 to 10 mph. Chance of rain 90 percent. Sunday: A chance of thunderstorms. Showers with highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 80 percent. Sunday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. South winds around 10 mph with gusts up to 20 mph. Monday: Partly sunny in the morning, then clearing. Highs around 90. Monday Night: Clear. Lows in the mid 70s. Tuesday: Sunny. Highs in the lower 90s. Tuesday Night: Clear. Lows in the mid 70s. Wednesday: Sunny. Highs in the lower 90s. Wednesday Night: Mostly clear. Lows in the upper 70s. Thursday: Sunny. Highs in the lower 90s. Heat index values up to 105. Thursday Night: Mostly clear. Lows in the upper 70s. Friday: Mostly sunny. Highs in the mid 90s. Heat index values up to 105. | |
| Zone Forecast: Johnston County | |
Visit your local NWS office at: https://www.weather.gov/oun |