Weather forecast for today
Mercersburg, PA

Weather forecast for today

Tuesday, Jun 17.

PM Thunderstorms
5:41 am

8:43 pm
EDT
PM Thunderstorms
77°F / 70°F
  • Wind: 7mph SSE
  • Humidity: 88%
  • Precip. probability: 76%
  • Precipitation: 0.59"
  • UV index: 6
Today, in Mercersburg, thunderstorms are expected in the afternoon.
The chance of rainfall is high, and precipitation will be moderate. Minor temperature shifts from a high of a temperate 77°F to a low of an agreeable 69.8°F are anticipated.
The anticipated daily high is projected to match June's typical maximum of 79.5°F.
Sunrise was at 5:41 am and sunset will be at 8:43 pm; the daylight will last for 15h and 2min.

Current condition

Cloudy
7:52 am EDT
Cloudy
  • 66°F
  • Feels like: 66°F
  • Wind: 2mph SSE
  • Humidity: 97%
  • Dewpoint: 64°F
  • Pressure: 30.01"Hg
  • Precipitation: 0"
  • Visibility: 6mi
  • UV index: 0
At the moment, in Mercersburg, the sky is overcast with clouds stretching as far as the eye can see.
The temperature is a comfortable 66.2°F. The current temperature is almost at the minimum-expected 69.8°F for today.

Weather radar - Mercersburg, PA

Doppler radar displays precipitation for the past 2h and forecasts the next 30min

Frequently asked questions

What is the current temperature?
At 7:52 am EDT, the temperature is 66.2°F.
What is the weather forecast for Mercersburg for today?
On Tuesday, showers and thunder will dominate the later part of the day.
Will it rain today?
With a probability of 76%, moderate precipitation of 0.59" is forecasted.
What will be the maximum temperature today?
Today, the highest temperature will be 77°F, while the lowest temperature will be 69.8°F.
The highest temperature will be in line with the average maximum of 79.5°F in June. The lowest temperature will be significantly higher than the average low of 57.9°F.
When is the sunrise / sunset today?
On Tuesday, in Mercersburg, sunrise was at 5:41 am and sunset will be at 8:43 pm (EDT).
How long is the day today?
In Mercersburg, the length of the day today will be 15h and 2min.

Hourly weather forecast

8 am
  • 66°F
  • Feels like:
    66°F
Cloudy
Cloudy
  • Wind: 2mph SSE
  • Pressure: 30"Hg
  • Humidity: 97%
  • Precip. probability: 12%
  • Precipitation: 0"
  • Visibility: 5mi
9 am
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Wind: 3mph SSE
  • Pressure: 30"Hg
  • Humidity: 96%
  • Precip. probability: 7%
  • Precipitation: 0"
  • Visibility: 5mi
10 am
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Wind: 4mph SSE
  • Pressure: 30"Hg
  • Humidity: 94%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 4mi
11 am
  • 70°F
  • Feels like:
    70°F
Cloudy
Cloudy
  • Wind: 6mph S
  • Pressure: 29.97"Hg
  • Humidity: 90%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 4mi
12 pm
  • 72°F
  • Feels like:
    72°F
Cloudy
Cloudy
  • Wind: 6mph S
  • Pressure: 29.97"Hg
  • Humidity: 89%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 4mi
1 pm
  • 73°F
  • Feels like:
    73°F
Cloudy
Cloudy
  • Wind: 6mph S
  • Pressure: 29.94"Hg
  • Humidity: 87%
  • Precip. probability: 10%
  • Precipitation: 0"
  • Visibility: 7mi
2 pm
  • 75°F
  • Feels like:
    75°F
Showers
Showers
  • Wind: 6mph S
  • Pressure: 29.94"Hg
  • Humidity: 84%
  • Precip. probability: 35%
  • Precipitation: 0.04"
  • Visibility: 7mi
3 pm
  • 77°F
  • Feels like:
    81°F
Thunderstorms
Thunderstorms
  • Wind: 7mph SSE
  • Pressure: 29.91"Hg
  • Humidity: 83%
  • Precip. probability: 71%
  • Precipitation: 0.04"
  • Visibility: 6mi
4 pm
  • 77°F
  • Feels like:
    81°F
Thunderstorms
Thunderstorms
  • Wind: 6mph SSE
  • Pressure: 29.88"Hg
  • Humidity: 84%
  • Precip. probability: 76%
  • Precipitation: 0.16"
  • Visibility: 6mi
5 pm
  • 77°F
  • Feels like:
    81°F
Thunderstorms
Thunderstorms
  • Wind: 6mph SSE
  • Pressure: 29.88"Hg
  • Humidity: 84%
  • Precip. probability: 66%
  • Precipitation: 0.2"
  • Visibility: 4mi
6 pm
  • 77°F
  • Feels like:
    81°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 6mph SSE
  • Pressure: 29.88"Hg
  • Humidity: 84%
  • Precip. probability: 49%
  • Precipitation: 0.04"
  • Visibility: 7mi
7 pm
  • 77°F
  • Feels like:
    81°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 6mph S
  • Pressure: 29.88"Hg
  • Humidity: 84%
  • Precip. probability: 49%
  • Precipitation: 0.04"
  • Visibility: 4mi
8 pm
  • 75°F
  • Feels like:
    81°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 6mph S
  • Pressure: 29.88"Hg
  • Humidity: 86%
  • Precip. probability: 49%
  • Precipitation: 0.12"
  • Visibility: 4mi
Sunset: 8:43 pm
9 pm
  • 73°F
  • Feels like:
    77°F
Showers
Showers
  • Wind: 4mph S
  • Pressure: 29.88"Hg
  • Humidity: 90%
  • Precip. probability: 37%
  • Precipitation: 0.04"
  • Visibility: 5mi
10 pm
  • 73°F
  • Feels like:
    75°F
Few Showers
Few Showers
  • Wind: 3mph S
  • Pressure: 29.91"Hg
  • Humidity: 92%
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Visibility: 5mi
11 pm
  • 72°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 2mph S
  • Pressure: 29.91"Hg
  • Humidity: 93%
  • Precip. probability: 19%
  • Precipitation: 0"
  • Visibility: 5mi
Today, a combination of gloomy, turbulent and rain-soaked weather is forecasted.
Rainfall is forecasted from 2 pm to 10 pm. With moderate precipitation of 0.2", most rainfall is expected at 5 pm.
The temperature will be between a maximum of 77°F and a minimum of 66.2°F. The warmest part of the day will be from 3 pm to 7 pm.
The maximum temperature will be in line with the average high of 79.5°F in June. The lowest temperature is more consistent with July's average minimum of 62.6°F than the usual minimum of 57.9°F in June.
Updated: Jun 17, 2025 @ 11:52:56 UTC
Published by: Weather U.S. | About Us
Data Sources | |
Weather Forecasting & Climate

Mercersburg, Pennsylvania, USA

  • en: Mercersburg, Pennsylvania, USA
  • es: Mercersburg, Pensilvania, EE.UU.
  • hr: Mersersberg, Pensilvanija, SAD
  • sr: Mersersberg, Pensilvanija, SAD
  • zh: 默瑟斯堡, 宾夕法尼亚, 美国
  • Latitude: 39.827870°
  • Longitude: -77.903331°
  • Elevation: 581 ft
  • Current time: 7:52am EDT
  • Sunrise: 5:41 am EDT
  • Sunset: 8:43 pm EDT
  • Timezone: America/New_York
Climate data
Share