Johnston, AR Weather Forecast
Local 7-day forecast
Mostly Cloudy then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Johnston, AR in one place.
A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 20%.
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: Apr 19, 2026 3:12 PM CDT.
The active forecast window currently covers Apr 23 to Apr 25, 2026 for Johnston, AR.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 25, 2026
- Latest sync
- Apr 19, 2026 3:12 PM CDT
- Forecast office
- SHV
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnston
Friday looks like the warmest upcoming period in Johnston at 83 degrees F.
Saturday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Thursday at about 5 to 10 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 19, 2026 3:12 PM CDT
- Coverage
- 3 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 slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Some of the storms could be severe. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 81. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
81°F |
5 to 10 mph
S
|
|
Thursday Night
Apr 23
|
Slight Chance Showers And Thunderstorms
|
64°F |
5 mph
S
|
|
Friday
Apr 24
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
83°F |
5 to 10 mph
S
|
|
Friday Night
Apr 24
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
61°F |
0 to 5 mph
S
|
|
Saturday
Apr 25
|
Chance Showers And Thunderstorms
|
81°F |
5 mph
S
|
|
Saturday Night
Apr 25
|
Chance Showers And Thunderstorms
|
59°F |
0 to 5 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnston.