Johnson County, AR Weather Forecast
County weather hub
Mostly Clear
Compare major city weather across Johnson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly clear, with a low around 67. East southeast wind around 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Johnson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Johnson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 17 to May 23, 2026
- Latest sync
- May 17, 2026 2:46 AM CDT
- Forecast office
- LZK
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson County
Sunday looks like the warmest upcoming period in Johnson County at 85 degrees F.
Thursday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Sunday at about 5 to 15 mph SE.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- May 17, 2026 2:46 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LZK
- Radar station
- KSRX
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 after 1pm. Partly sunny, with a high near 85. Southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 85. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Showers and thunderstorms before 1am. Partly cloudy, with a low around 70. South southeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Showers and thunderstorms after 7am. Mostly cloudy, with a high near 84. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 65. East wind 0 to 5 mph. Chance of precipitation is 80%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 76. Northeast wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely 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 61. Northeast wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 17
|
Mostly Clear
|
67°F |
5 mph
ESE
|
|
Sunday
May 17
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
85°F |
5 to 15 mph
SE
|
|
Sunday Night
May 17
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
69°F |
10 mph
SSE
|
|
Monday
May 18
|
Showers And Thunderstorms
|
85°F |
10 mph
SSE
|
|
Monday Night
May 18
|
Showers And Thunderstorms
|
70°F |
5 to 10 mph
SSE
|
|
Tuesday
May 19
|
Showers And Thunderstorms
|
84°F |
5 to 10 mph
S
|
|
Tuesday Night
May 19
|
Showers And Thunderstorms
|
65°F |
0 to 5 mph
E
|
|
Wednesday
May 20
|
Showers And Thunderstorms Likely
|
76°F |
5 mph
NE
|
|
Wednesday Night
May 20
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
61°F |
5 mph
NE
|
|
Thursday
May 21
|
Chance Showers And Thunderstorms
|
75°F |
5 mph
ENE
|
|
Thursday Night
May 21
|
Chance Showers And Thunderstorms
|
59°F |
5 mph
ENE
|
|
Friday
May 22
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
77°F |
5 mph
ENE
|
|
Friday Night
May 22
|
Chance Showers And Thunderstorms
|
60°F |
0 to 5 mph
ENE
|
|
Saturday
May 23
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
81°F |
0 to 5 mph
E
|
Major City Forecasts
Live forecast snapshots for major cities across Johnson County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Johnson County.
Largest mapped city population in this region: 9,721.
