Johnson County, MO Weather Forecast
County weather hub
Showers And Thunderstorms Likely
Compare major city weather across Johnson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Showers and thunderstorms likely. Cloudy. High near 74, with temperatures falling to around 69 in the afternoon. West wind 9 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
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
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 4:22 PM CDT
- Forecast office
- EAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson County
Wednesday looks like the warmest upcoming period in Johnson County at 81 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 14 to 20 mph NW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 4:22 PM CDT
- Coverage
- 7 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 before 9pm. Mostly cloudy, with a low around 43. Northwest wind 12 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Partly sunny, with a high near 54. Northwest wind 14 to 20 mph, with gusts as high as 32 mph.
Mostly cloudy, with a low around 34. North wind 2 to 15 mph, with gusts as high as 28 mph.
Patchy frost before 8am. Sunny, with a high near 60. East wind around 1 mph.
Clear, with a low around 37.
Sunny, with a high near 68.
Mostly clear, with a low around 42.
Mostly sunny, with a high near 72.
Partly cloudy, with a low around 46.
Sunny, with a high near 78.
Mostly clear, with a low around 52.
Sunny, with a high near 81.
Mostly clear, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 15
|
Showers And Thunderstorms Likely
|
74°F |
9 to 16 mph
W
|
|
Tonight
Oct 15
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
43°F |
12 to 17 mph
NW
|
|
Friday
Oct 16
|
Partly Sunny
|
54°F |
14 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Cloudy
|
34°F |
2 to 15 mph
N
|
|
Saturday
Oct 17
|
Patchy Frost then Sunny
|
60°F |
1 mph
E
|
|
Saturday Night
Oct 17
|
Clear
|
37°F |
2 mph
SSE
|
|
Sunday
Oct 18
|
Sunny
|
68°F |
3 to 9 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
42°F |
3 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
72°F |
2 to 6 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
46°F |
2 mph
SSE
|
|
Tuesday
Oct 20
|
Sunny
|
78°F |
1 to 5 mph
SSE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
52°F |
2 mph
SE
|
|
Wednesday
Oct 21
|
Sunny
|
81°F |
2 to 7 mph
S
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
56°F |
3 mph
SSE
|
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.
