Johnston County, OK Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Johnston County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind around 5 mph. Chance of precipitation is 30%.
County Weather Overview
This county weather page brings together forecast coverage for Johnston County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Johnston County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 15 to Jul 21, 2026
- Latest sync
- Jul 15, 2026 1:12 PM CDT
- Forecast office
- OUN
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnston County
Tuesday looks like the warmest upcoming period in Johnston County at 101 degrees F.
Tonight is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Sunday at about 6 to 12 mph SSW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 15, 2026 1:12 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- OUN
- Radar station
- KTLX
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 10pm. Partly cloudy, with a low around 70. South wind 2 to 6 mph. Chance of precipitation is 30%.
A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind 2 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. South wind 3 to 9 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. South southwest wind 3 to 10 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%.
Sunny, with a high near 95.
Mostly clear, with a low around 75.
Sunny, with a high near 97.
Clear, with a low around 77.
Sunny, with a high near 100.
Mostly clear, with a low around 77.
Sunny, with a high near 101.
Mostly clear, with a low around 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 15
|
Chance Showers And Thunderstorms
|
90°F |
5 mph
S
|
|
Tonight
Jul 15
|
Chance Showers And Thunderstorms then Partly Cloudy
|
70°F |
2 to 6 mph
S
|
|
Thursday
Jul 16
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
90°F |
2 to 10 mph
SSW
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
72°F |
3 to 9 mph
S
|
|
Friday
Jul 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
3 to 10 mph
SSW
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
74°F |
5 to 9 mph
SSW
|
|
Saturday
Jul 18
|
Sunny
|
95°F |
5 to 10 mph
SSW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
75°F |
6 to 10 mph
SSW
|
|
Sunday
Jul 19
|
Sunny
|
97°F |
6 to 12 mph
SSW
|
|
Sunday Night
Jul 19
|
Clear
|
77°F |
6 to 12 mph
SSW
|
|
Monday
Jul 20
|
Sunny
|
100°F |
6 to 10 mph
SW
|
|
Monday Night
Jul 20
|
Mostly Clear
|
77°F |
6 to 10 mph
SSW
|
|
Tuesday
Jul 21
|
Sunny
|
101°F |
8 mph
SW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
77°F |
3 to 7 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Johnston County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Johnston County.
Largest mapped city population in this region: 2,997.
