Weather WorldJohnston County, OK 7-Day Weather Forecast
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Johnston County Weather Forecast
Johnston County, OK Weather Forecast Date: 454 PM CDT Thu Sep 10 2026
Weather forecast for Johnston County, OK
Tonight Lo: 70°F Lo: 21°C |
Tonight... Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly this evening. Lows around 70. Northeast winds around 5 mph, becoming southeast after midnight. Chance of rain 50%. |
Fri Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Friday... Mostly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Humid with highs in the mid 90s. Southeast winds 5 to 10 mph. Chance of rain 40%. |
Sat Hi: 100°FHi: 38°C Lo: 71°F Lo: 22°C |
Saturday... Sunny. A slight chance of showers in the morning. Hot with highs around 100. South winds 5 to 10 mph. Chance of rain 20%. Heat index values up to 109 in the afternoon. |
Sun Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Sunday... Sunny. Highs in the upper 90s. Heat index values up to 105 in the afternoon. |
| Mon Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Monday... Sunny. Highs in the upper 90s. Heat index values up to 105. |
| Tue Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Tuesday... Sunny. Highs in the upper 90s. Heat index values up to 105 in the afternoon. |
| Wed Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Wednesday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 20%. Heat index values up to 105 in the afternoon. |
Johnston County Radar Loop
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