Johnson County, GA 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 wind 0 to 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 1 of 1 mapped cities in Johnson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Sep 15 to Sep 22, 2026
- Latest sync
- Sep 16, 2026 1:40 AM EDT
- Forecast office
- FFC
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson County
Friday looks like the warmest upcoming period in Johnson County at 95 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 10 mph NE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 16, 2026 1:40 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- FFC
- Radar station
- KJGX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 91. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 63. East wind 0 to 10 mph.
Sunny, with a high near 92. Northeast wind 0 to 5 mph.
Mostly clear, with a low around 66. Northeast wind 0 to 5 mph.
Sunny, with a high near 95.
A slight chance of showers and thunderstorms between 8pm and 2am. Mostly clear, with a low around 69. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Sep 15
|
Mostly Clear
|
67°F |
0 to 5 mph
E
|
|
Wednesday
Sep 16
|
Sunny
|
91°F |
5 to 10 mph
NE
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
63°F |
0 to 10 mph
E
|
|
Thursday
Sep 17
|
Sunny
|
92°F |
0 to 5 mph
NE
|
|
Thursday Night
Sep 17
|
Mostly Clear
|
66°F |
0 to 5 mph
NE
|
|
Friday
Sep 18
|
Sunny
|
95°F |
0 mph
|
|
Friday Night
Sep 18
|
Slight Chance Showers And Thunderstorms
|
69°F |
0 mph
|
|
Saturday
Sep 19
|
Sunny then Slight Chance Showers And Thunderstorms
|
93°F |
0 to 5 mph
E
|
|
Saturday Night
Sep 19
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
69°F |
0 to 5 mph
E
|
|
Sunday
Sep 20
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
92°F |
0 to 5 mph
E
|
|
Sunday Night
Sep 20
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
70°F |
0 to 5 mph
E
|
|
Monday
Sep 21
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
0 to 5 mph
E
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
69°F |
0 to 5 mph
E
|
|
Tuesday
Sep 22
|
Chance Showers And Thunderstorms
|
90°F |
0 to 5 mph
NE
|
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: 3,606.
