Union County, NC Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Union County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms before 3am, then patchy fog and a chance of showers and thunderstorms between 3am and 5am, then patchy fog and a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Wind around 0 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Union County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 7 of 7 mapped cities in Union County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 4, 2026
- Latest sync
- Aug 29, 2026 4:16 AM EDT
- Forecast office
- GSP
- Source
- NOAA / NWS
Daily Outlook
This Week in Union County
Wednesday looks like the warmest upcoming period in Union County at 97 degrees F.
Overnight is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Saturday at about 1 to 6 mph E.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 29, 2026 4:16 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- GSP
- Radar station
- KCAE
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy fog and a chance of showers and thunderstorms before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 85. East wind 1 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 70. Southeast wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers between 11am and 2pm. Partly sunny, with a high near 89. Southeast wind 0 to 3 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Partly cloudy, with a low around 71. South southwest wind around 2 mph.
Sunny, with a high near 93.
Mostly clear, with a low around 72.
Sunny, with a high near 96.
Mostly clear, with a low around 73.
Sunny, with a high near 97.
Mostly clear, with a low around 74.
Sunny, with a high near 97.
Mostly clear, with a low around 74.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 97.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 29
|
Chance Showers And Thunderstorms
|
70°F |
0 mph
|
|
Saturday
Aug 29
|
Patchy Fog then Chance Showers And Thunderstorms
|
85°F |
1 to 6 mph
E
|
|
Saturday Night
Aug 29
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
70°F |
0 to 5 mph
SE
|
|
Sunday
Aug 30
|
Slight Chance Rain Showers
|
89°F |
0 to 3 mph
SE
|
|
Sunday Night
Aug 30
|
Partly Cloudy
|
71°F |
2 mph
SSW
|
|
Monday
Aug 31
|
Sunny
|
93°F |
2 mph
WSW
|
|
Monday Night
Aug 31
|
Mostly Clear
|
72°F |
2 mph
SSW
|
|
Tuesday
Sep 1
|
Sunny
|
96°F |
2 mph
WSW
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
73°F |
2 mph
SSW
|
|
Wednesday
Sep 2
|
Sunny
|
97°F |
5 mph
SW
|
|
Wednesday Night
Sep 2
|
Mostly Clear
|
74°F |
5 mph
SSW
|
|
Thursday
Sep 3
|
Sunny
|
97°F |
5 mph
WSW
|
|
Thursday Night
Sep 3
|
Mostly Clear
|
74°F |
5 mph
WSW
|
|
Friday
Sep 4
|
Sunny then Slight Chance Showers And Thunderstorms
|
97°F |
2 to 6 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Union County.
Coverage
Forecast coverage currently spans 7 of 7 mapped cities in Union County.
Largest mapped city population in this region: 41,040.
