Weather World
Johnstown, AR 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Johnstown, AR Weather Forecast
Johnstown, AR Weather Forecast Date: 850 AM CDT Thu Sep 10 2026
The area/counties/county of: Jackson, including the city of Newport.or toggle through each period.
Today... Sunny. Scattered thunderstorms with a chance of showers this afternoon. Highs in the upper 90s. Southwest winds 5 to 10 mph, becoming northwest this afternoon. Chance of rain 50%. Average rainfall 1/10 to 1/4 inch. Heat index values up to 106.
Tonight... Partly cloudy in the evening, then becoming mostly cloudy. Scattered thunderstorms with a chance of showers. Lows in the lower 70s. North winds around 5 mph. Chance of rain 50%. Average rainfall 1/10 to 1/4 inch.
Friday... Mostly cloudy with a chance of showers. Isolated thunderstorms in the morning, then scattered thunderstorms in the afternoon. Highs in the lower 90s. North winds around 5 mph. Chance of rain 50%. Average rainfall 1/10 to 1/4 inch.
Friday Night... Partly cloudy. Scattered thunderstorms with a chance of showers in the evening. Lows in the lower 70s. East winds around 5 mph, becoming south after midnight. Chance of rain 40%.
Saturday... Sunny. Highs in the mid 90s. Southwest winds around 5 mph. Heat index values up to 105.
Saturday Night... Mostly clear. Lows in the lower 70s. Highs in the upper 90s. Heat index values up to 105.
Sunday... Mostly clear. Lows in the lower 70s. Highs in the upper 90s. Heat index values up to 105.
Monday... Mostly clear. Lows in the lower 70s. Highs in the upper 90s. Heat index values up to 105.
Tuesday... 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.
Tuesday Night... Mostly clear with a slight chance of showers in the evening, then partly cloudy after midnight. Lows around 70. Chance of rain 20%.
POP = Probability of Precipitation
Johnstown Radar Loop
Use the map search tool if you want to place a location marker on the radar map...