Gwinnett County, GA Weather Forecast
County weather hub
Showers And Thunderstorms
Compare major city weather across Gwinnett County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain showers likely before 11am, then showers and thunderstorms. Mostly cloudy, with a high near 83. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
County Weather Overview
This county weather page brings together forecast coverage for Gwinnett County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 12 of 12 mapped cities in Gwinnett County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 1:35 PM EDT
- Forecast office
- FFC
- Source
- NOAA / NWS
Daily Outlook
This Week in Gwinnett County
Saturday looks like the warmest upcoming period in Gwinnett County at 93 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 10 mph E.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 1:35 PM EDT
- Coverage
- 5 days
- Time zone
- America/New_York
- Forecast office
- FFC
- Radar station
- KFFC
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
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 80%.
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 40%.
Sunny, with a high near 90.
Mostly clear, with a low around 74.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74. 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. Mostly clear, with a low around 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Showers And Thunderstorms
|
83°F |
5 to 10 mph
E
|
|
Tuesday Night
Jul 14
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
69°F |
0 to 5 mph
NE
|
|
Wednesday
Jul 15
|
Partly Sunny then Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
NW
|
|
Wednesday Night
Jul 15
|
Chance Showers And Thunderstorms then Partly Cloudy
|
72°F |
0 to 5 mph
W
|
|
Thursday
Jul 16
|
Sunny
|
90°F |
5 to 10 mph
NW
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
74°F |
5 mph
W
|
|
Friday
Jul 17
|
Sunny then Slight Chance Showers And Thunderstorms
|
92°F |
5 mph
NW
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
74°F |
0 to 5 mph
NW
|
|
Saturday
Jul 18
|
Sunny then Slight Chance Showers And Thunderstorms
|
93°F |
5 mph
NW
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
74°F |
0 to 5 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Gwinnett County.
Coverage
Forecast coverage currently spans 12 of 12 mapped cities in Gwinnett County.
Largest mapped city population in this region: 44,294.
