Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Springlike warmth in East to be erased by upcoming cold wave. Get the forecast. Chevron right

Mercersburg, PA

43°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Mercersburg

Pennsylvania

43°
No results found.
Try searching for a city, zip code or point of interest.
Create Account Unlock extended daily forecasts and additional saved locations — all with your free account.
Let's Go Chevron right
Have an account already? Login
settings
Mercersburg, PA 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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

2 AM

36°
RealFeel® 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 37%
Chevron down
Cloudy

WindSSE 6 mph

Air QualityPoor

Wind Gusts9 mph

Humidity91%

Indoor Humidity42% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling16000 ft

3 AM

36°
RealFeel® 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 33%
Chevron down
Cloudy

WindSSE 7 mph

Air QualityPoor

Wind Gusts9 mph

Humidity93%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling17400 ft

4 AM

36°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 32%
Chevron down
Cloudy

WindSSE 7 mph

Air QualityPoor

Wind Gusts9 mph

Humidity90%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling18800 ft

5 AM

36°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 32%
Chevron down
Cloudy

WindSSE 8 mph

Air QualityPoor

Wind Gusts9 mph

Humidity88%

Indoor Humidity42% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling18500 ft

6 AM

36°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 21%
Chevron down
Cloudy

WindSSE 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity86%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling18100 ft

7 AM

37°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindSSE 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity84%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling17800 ft

8 AM

38°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy

RealFeel Shade™31°

WindSSE 9 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts10 mph

Humidity83%

Indoor Humidity42% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling12900 ft

9 AM

39°
RealFeel® 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 39%
Chevron down
Mostly cloudy

RealFeel Shade™32°

WindSSE 10 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts12 mph

Humidity84%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling8100 ft

10 AM

42°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™36°

WindSSE 10 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts12 mph

Humidity82%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling3200 ft

11 AM

45°
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 55%
Chevron down
Rain

RealFeel Shade™37°

WindSSE 10 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts12 mph

Humidity79%

Indoor Humidity34% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Rain0.01 in

Visibility6 mi

Cloud Ceiling3200 ft

12 PM

47°
RealFeel® 40°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 56%
Chevron down
Rain

RealFeel Shade™40°

WindSSE 10 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts13 mph

Humidity80%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Rain0.01 in

Visibility6 mi

Cloud Ceiling3200 ft

1 PM

49°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 43%
Chevron down
Showers

RealFeel Shade™38°

WindSSE 17 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts27 mph

Humidity79%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.01 in

Visibility10 mi

Cloud Ceiling3200 ft

2 PM

51°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 36%
Chevron down
Cloudy

RealFeel Shade™42°

WindSSE 16 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts28 mph

Humidity80%

Indoor Humidity43% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling3400 ft

3 PM

51°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 43%
Chevron down
Showers

RealFeel Shade™41°

WindSSE 16 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts29 mph

Humidity82%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.01 in

Visibility10 mi

Cloud Ceiling3500 ft

4 PM

53°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™46°

WindS 15 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts28 mph

Humidity79%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling3700 ft

5 PM

52°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Showers

RealFeel Shade™43°

WindS 14 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts24 mph

Humidity82%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Rain0.01 in

Visibility10 mi

Cloud Ceiling3700 ft

6 PM

52°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 43%
Chevron down
Cloudy

WindS 12 mph

Air QualityFair

Wind Gusts21 mph

Humidity85%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling3700 ft

7 PM

51°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindS 9 mph

Air QualityFair

Wind Gusts17 mph

Humidity85%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling3700 ft

8 PM

51°
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindS 8 mph

Air QualityFair

Wind Gusts14 mph

Humidity86%

Indoor Humidity46% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling4800 ft

9 PM

50°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

WindS 6 mph

Air QualityFair

Wind Gusts9 mph

Humidity86%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling4000 ft

10 PM

49°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 51%
Chevron down
Showers

WindSSW 6 mph

Air QualityFair

Wind Gusts8 mph

Humidity86%

Indoor Humidity44% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

11 PM

49°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

WindSW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity85%

Indoor Humidity42% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling6200 ft

Further Ahead

Tomorrow

Sunday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Astronomy

NASA to bring Crew-11 astronauts home early after medical issue aboard...

4 hours ago

Winter Weather

Juneau, Alaska, braces for more snow: 'There's nowhere to put it'

12 hours ago

Weather Forecasts

Springlike warmth in East to be replaced by cold air, snowstorm risk

8 hours ago

Weather News

Families face complex challenges 1 year after Eaton, Palisades fires

1 day ago

Weather Forecasts

Pineapple Express to drench Washington, British Columbia and Alaska

12 hours ago

 More Stories

Featured Stories

Astronomy

Newly discovered asteroid spins at record-breaking speed

11 hours ago

Weather News

Europe hit by winter storm; flights, trains disrupted

15 hours ago

Astronomy

Meteor showers 2026: The best nights to see shooting stars

12 hours ago

Climate

Climate risk reshaping homeownership decisions, study finds

1 day ago

Astronomy

Hubble telescope spots ‘failed’ starless galaxy known as Cloud 9

2 days ago
World North America United States Pennsylvania Mercersburg

Weather Near Mercersburg:

  • Harrisburg, PA
  • Lancaster, PA
  • York, PA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ 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 RealFeel® and RealFeel Shade™ 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

...

...

...