Johnson County, KY 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 before 5pm, then showers and thunderstorms likely. Partly sunny. High near 85, with temperatures falling to around 79 in the afternoon. West northwest wind around 3 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half 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 1 of 1 mapped cities in Johnson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 20 to May 26, 2026
- Latest sync
- May 20, 2026 2:51 PM EDT
- Forecast office
- JKL
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson County
This Afternoon looks like the warmest upcoming period in Johnson County at 85 degrees F.
Tonight is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Saturday at about 1 to 5 mph SSW.
Precipitation is mentioned in 14 upcoming forecast periods.
Forecast Details
- Last updated
- May 20, 2026 2:51 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- JKL
- Radar station
- KJKL
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before 10pm, then showers and thunderstorms likely between 10pm and 5am, then rain showers likely and patchy fog. Cloudy. Low around 57, with temperatures rising to around 60 overnight. North wind 0 to 3 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers likely and patchy fog before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Cloudy. High near 71, with temperatures falling to around 70 in the afternoon. North northeast wind around 3 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers. Mostly cloudy. Low around 59, with temperatures rising to around 60 overnight. East northeast wind 0 to 3 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Rain showers before 11am, then showers and thunderstorms. Mostly cloudy. High near 79, with temperatures falling to around 77 in the afternoon. Southeast wind 0 to 3 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms. Cloudy, with a low around 63. Chance of precipitation is 100%.
Showers and thunderstorms. Mostly cloudy, with a high near 80. Chance of precipitation is 90%.
Showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 90%.
A slight chance of rain showers before 8am, then showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 80%.
A chance of rain showers before 8am, then showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 80%.
A chance of rain showers before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
May 20
|
Chance Showers And Thunderstorms
|
85°F |
3 mph
WNW
|
|
Tonight
May 20
|
Showers And Thunderstorms Likely
|
57°F |
0 to 3 mph
N
|
|
Thursday
May 21
|
Rain Showers Likely then Slight Chance Showers And Thunderstorms
|
71°F |
3 mph
NNE
|
|
Thursday Night
May 21
|
Chance Rain Showers
|
59°F |
0 to 3 mph
ENE
|
|
Friday
May 22
|
Showers And Thunderstorms
|
79°F |
0 to 3 mph
SE
|
|
Friday Night
May 22
|
Showers And Thunderstorms
|
63°F |
3 mph
SSE
|
|
Saturday
May 23
|
Showers And Thunderstorms
|
80°F |
1 to 5 mph
SSW
|
|
Saturday Night
May 23
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
64°F |
0 to 3 mph
SW
|
|
Sunday
May 24
|
Showers And Thunderstorms
|
83°F |
0 to 3 mph
SSW
|
|
Sunday Night
May 24
|
Showers And Thunderstorms
|
65°F |
2 mph
WSW
|
|
Memorial Day
May 25
|
Showers And Thunderstorms
|
81°F |
2 mph
WSW
|
|
Monday Night
May 25
|
Showers And Thunderstorms
|
64°F |
2 mph
S
|
|
Tuesday
May 26
|
Showers And Thunderstorms Likely
|
82°F |
0 to 3 mph
SSW
|
|
Tuesday Night
May 26
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
65°F |
2 mph
E
|
Major City Forecasts
Live forecast snapshots for major cities across Johnson County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Johnson County.
Largest mapped city population in this region: 3,925.
