Johnston, AR Weather Forecast
Local 7-day forecast
Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Johnston, AR in one place.
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 103. South wind around 0 mph. Chance of precipitation is 30%.
Local Weather Overview
This forecast page for Johnston, AR is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 4, 2026 9:47 AM CDT.
The active forecast window currently covers Aug 5 to Aug 10, 2026 for Johnston, AR.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 5 to Aug 10, 2026
- Latest sync
- Aug 4, 2026 9:47 AM CDT
- Forecast office
- SHV
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnston
Wednesday looks like the warmest upcoming period in Johnston at 96 degrees F.
Friday Night is the coolest period ahead with temperatures near 73 degrees F.
The strongest winds are forecast for Monday at about 0 to 5 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 4, 2026 9:47 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- SHV
- Radar station
- KSHV
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 75. South wind around 0 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Southwest wind around 0 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Mostly sunny, with a high near 94.
Partly cloudy, with a low around 73.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Aug 5
|
Sunny then Chance Showers And Thunderstorms
|
96°F |
0 mph
|
|
Wednesday Night
Aug 5
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
75°F |
0 mph
|
|
Thursday
Aug 6
|
Sunny then Slight Chance Showers And Thunderstorms
|
96°F |
0 mph
|
|
Thursday Night
Aug 6
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
74°F |
0 mph
|
|
Friday
Aug 7
|
Mostly Sunny then Chance Showers And Thunderstorms
|
94°F |
0 mph
|
|
Friday Night
Aug 7
|
Chance Showers And Thunderstorms then Partly Cloudy
|
73°F |
0 mph
|
|
Saturday
Aug 8
|
Mostly Sunny then Chance Showers And Thunderstorms
|
94°F |
0 mph
|
|
Saturday Night
Aug 8
|
Chance Showers And Thunderstorms then Partly Cloudy
|
73°F |
0 mph
|
|
Sunday
Aug 9
|
Mostly Sunny
|
94°F |
0 mph
|
|
Sunday Night
Aug 9
|
Partly Cloudy
|
73°F |
0 mph
|
|
Monday
Aug 10
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
94°F |
0 to 5 mph
S
|
|
Monday Night
Aug 10
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
74°F |
0 mph
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnston.