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Johnstown, AR 7-Day Weather Forecast
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Johnstown Weather Forecast
Johnstown, AR Weather Forecast Date: 450 PM CDT Sat Sep 12 2026
Weather forecast for Johnstown, AR
Tonight Lo: 71°F Lo: 22°C |
Tonight... Partly cloudy. Lows in the lower 70s. East winds around 5 mph this evening, becoming light and variable. |
Sun Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Sunday... Mostly sunny. Highs in the upper 90s. Northeast winds around 5 mph. Heat index values up to 107. |
| Mon Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Monday... Sunny. Highs in the upper 90s. Northeast winds around 5 mph, becoming southeast around 5 mph in the afternoon. Heat index values up to 107. |
| Tue Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Tuesday... Mostly clear. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 110. |
| Wed Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Wednesday... Mostly clear. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 110. |
| Thu Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Thursday... Mostly clear. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 110. |
| Thu Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Thursday... Mostly clear. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 110. |
Fri Hi: 95°FHi: 35°C Lo: 69°F Lo: 21°C |
Friday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20%. |
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