Johnson County, MO Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Johnson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
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 18, 2026
- Latest sync
- May 12, 2026 1:36 PM CDT
- Forecast office
- EAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson County
Sunday looks like the warmest upcoming period in Johnson County at 90 degrees F.
Monday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Sunday at about 12 to 18 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- May 12, 2026 1:36 PM CDT
- Coverage
- 2 days
- Time zone
- America/Chicago
- Forecast office
- EAX
- Radar station
- KEAX
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. Partly cloudy, with a low around 68. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 17
|
Chance Showers And Thunderstorms
|
90°F |
12 to 18 mph
S
|
|
Sunday Night
May 17
|
Chance Showers And Thunderstorms
|
68°F |
10 to 15 mph
SSW
|
|
Monday
May 18
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
79°F |
12 to 15 mph
SSW
|
|
Monday Night
May 18
|
Showers And Thunderstorms Likely
|
60°F |
6 to 10 mph
SE
|
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: 20,539.
