Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Heat wave to intensify as all-time March records fall across the West. See how hot it will get. Chevron right

Union, SC

75°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Union

South Carolina

75°
No results found.
Try searching for a city, zip code or point of interest.
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Union, SC Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly

Daily

Radar MinuteCast® Monthly Air Quality Health & Activities

Unlock extended 90-day forecasts

Activate Your Premium+ Subscription

Chevron right

March 20 - April 18

Fri 3/20

75° /54°
0%
Mostly sunny and beautiful

RealFeel®79°

RealFeel Shade™73°

Max UV Index6.0 (High)

WindSW 6 mph

Sat 3/21

80° /55°
55%
Very warm with intervals of clouds and sunshine; a thundershower in one or two spots in the afternoon; gusty winds and small hail can accompany any downpour

RealFeel®82°

RealFeel Shade™78°

Max UV Index5.0 (Moderate)

WindWSW 7 mph

Sun 3/22

83° /62°
4%
Sunny much of the time and very warm

RealFeel®85°

RealFeel Shade™80°

Max UV Index6.0 (High)

WindWSW 7 mph

Mon 3/23

80° /45°
15%
Partly sunny and remaining warm; breezy in the afternoon; low humidity and dry brush will result in an elevated fire threat

RealFeel®81°

RealFeel Shade™76°

Max UV Index6.0 (High)

WindWNW 14 mph

Tue 3/24

65° /42°
4%
Cooler with times of clouds and sun

RealFeel®69°

RealFeel Shade™64°

Max UV Index5.0 (Moderate)

WindE 7 mph

Wed 3/25

65° /44°
25%
Times of clouds and sun

RealFeel®60°

RealFeel Shade™58°

Max UV Index4.0 (Moderate)

WindWNW 5 mph

Thu 3/26

70° /50°
17%
Delightful with sunshine and a few clouds

RealFeel®75°

RealFeel Shade™68°

Max UV Index7.0 (High)

WindESE 6 mph

Fri 3/27

75° /40°
1%
Partly sunny

RealFeel®76°

RealFeel Shade™72°

Max UV Index7.0 (High)

WindSW 12 mph

Sat 3/28

62° /39°
8%
Cloudy and cooler

RealFeel®61°

RealFeel Shade™61°

Max UV Index2.0 (Low)

WindNE 9 mph

Sun 3/29

67° /43°
25%
Periods of clouds and sunshine

RealFeel®68°

RealFeel Shade™65°

Max UV Index3.0 (Moderate)

WindWSW 2 mph

Mon 3/30

71° /49°
69%
Considerable cloudiness with periods of rain in the afternoon

RealFeel®70°

RealFeel Shade™70°

Max UV Index2.0 (Low)

WindNE 6 mph

Tue 3/31

63° /46°
18%
A thick cloud cover

RealFeel®64°

RealFeel Shade™64°

Max UV Index2.0 (Low)

WindNE 7 mph

Wed 4/1

70° /52°
15%
Low clouds, then perhaps some sun

RealFeel®70°

RealFeel Shade™67°

Max UV Index2.0 (Low)

WindWSW 6 mph

Thu 4/2

76° /42°
5%
Plenty of sunshine

RealFeel®80°

RealFeel Shade™74°

Max UV Index8.0 (Very High)

WindSSW 5 mph

Fri 4/3

74° /47°
5%
Plenty of sunshine

RealFeel®77°

RealFeel Shade™72°

Max UV Index8.0 (Very High)

WindSSW 6 mph

Sat 4/4

75° /48°
20%
Plenty of sunshine

RealFeel®78°

RealFeel Shade™72°

Max UV Index8.0 (Very High)

WindSSW 5 mph

Sun 4/5

75° /48°
20%
Plenty of sunshine

RealFeel®79°

RealFeel Shade™73°

Max UV Index8.0 (Very High)

WindS 5 mph

Mon 4/6

76° /49°
25%
Cloudy

RealFeel®75°

RealFeel Shade™75°

Max UV Index2.0 (Low)

WindESE 5 mph

Tue 4/7

75° /49°
25%
Increasing amounts of sun

RealFeel®78°

RealFeel Shade™74°

Max UV Index3.0 (Moderate)

WindSSW 4 mph

Wed 4/8

76° /48°
25%
A blend of sun and clouds

RealFeel®79°

RealFeel Shade™74°

Max UV Index5.0 (Moderate)

WindSSW 5 mph

Thu 4/9

77° /50°
25%
Turning cloudy

RealFeel®75°

RealFeel Shade™75°

Max UV Index4.0 (Moderate)

WindSSW 6 mph

Fri 4/10

77° /51°
25%
Cloudy

RealFeel®76°

RealFeel Shade™76°

Max UV Index2.0 (Low)

WindSSW 6 mph

Sat 4/11

74° /48°
70%
A thick cloud cover; periods of rain in the morning followed by showers and thunderstorms in the afternoon

RealFeel®73°

RealFeel Shade™73°

Max UV Index2.0 (Low)

WindE 6 mph

Sun 4/12

66° /49°
70%
Considerable cloudiness; periods of rain in the morning, then afternoon showers and thunderstorms

RealFeel®65°

RealFeel Shade™65°

Max UV Index2.0 (Low)

WindNE 8 mph

Mon 4/13

67° /51°
79%
Remaining cloudy; morning rain followed by a thundershower in the afternoon

RealFeel®66°

RealFeel Shade™65°

Max UV Index2.0 (Low)

WindS 7 mph

Tue 4/14

71° /50°
25%
Mostly cloudy

RealFeel®72°

RealFeel Shade™70°

Max UV Index3.0 (Moderate)

WindWSW 5 mph

Wed 4/15

77° /51°
5%
Plenty of sunshine

RealFeel®81°

RealFeel Shade™75°

Max UV Index9.0 (Very High)

WindWSW 4 mph

Thu 4/16

78° /52°
25%
After a cloudy start, sun returns

RealFeel®82°

RealFeel Shade™77°

Max UV Index9.0 (Very High)

WindNE 5 mph

Fri 4/17

78° /52°
25%
After a cloudy start, sunshine returns

RealFeel®85°

RealFeel Shade™78°

Max UV Index8.0 (Very High)

WindESE 4 mph

Sat 4/18

77° /53°
25%
A blend of sun and clouds

RealFeel®79°

RealFeel Shade™77°

Max UV Index4.0 (Moderate)

WindSW 5 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Western heat wave shatters March records, to expand with more extremes

1 hour ago

Winter Weather

Northeast, Midwest bracing for weather whiplash in spring's first days

2 hours ago

Astronomy

Man finds possible meteorite after fireball streaks across 12 states

1 day ago

Hurricane

Category 4 Tropical Cyclone Narelle strikes Australia

4 hours ago

Weather Forecasts

Hawaii braces for second kona storm in a week with renewed flooding

1 hour ago

More Stories

Featured Stories

Weather News

Leaves are coming out 3-4 weeks early in some places this spring

2 hours ago

Climate

Monarch population rises in Mexico, but California numbers drop

2 hours ago

Astronomy

Astronauts enter quarantine; NASA rolls moon rocket to launchpad

3 hours ago

Recreation

Death Valley's superbloom, ancient lake are disappearing

6 hours ago

Recreation

Top 10 National Parks of 2025 revealed

1 day ago

World North America United States South Carolina Union

Weather Near Union:

  • Asheville, NC
  • Greenville, SC
  • Spartanburg, SC
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...