Weather forecast for tomorrow
Mechanicsburg, PA

Weather forecast for tomorrow

Wednesday, Jun 18.

Showers
5:36 am

8:41 pm
EDT
Showers
84°F / 70°F
  • Wind: 7mph SW
  • Humidity: 80%
  • Precip. probability: 59%
  • Precipitation: 0.12"
  • UV index: 7
On Wednesday, June 18, expect showers with brief dry periods, especially during the afternoon.
Minimal precipitation is predicted for tomorrow. The temperature is expected to oscillate between a maximum of a temperate 84.2°F and a minimum of a delightful 69.8°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is evaluated at a sizzling 95°F. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
The maximum temperature will be higher and more in tune with July's average of 83.8°F than with June's.
Sunrise will be at 5:36 am and sunset at 8:41 pm; tomorrow's daylight will last for 15h and 5min.

Frequently asked questions

What is the weather forecast for Mechanicsburg for tomorrow?
Tomorrow, scattered showers will occur throughout the day, with lighter rain expected during the afternoon.
Will it rain tomorrow in Mechanicsburg?
There is a high possibility of rainfall, but with minimal precipitation.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 84.2°F, while the minimum temperature will be 69.8°F. The maximum heat index, which reflects the perceived temperature due to humidity levels, is computed to be 95°F.
The maximum temperature will be slightly warmer than the average highest temperature of 78.1°F in June. The lowest temperature will be significantly higher than the average low of 58.6°F.
When is the sunrise / sunset tomorrow in Mechanicsburg?
On Wednesday, in Mechanicsburg, sunrise will be at 5:36 am and sunset at 8:41 pm (EDT).
How many hours of daylight will Mechanicsburg have tomorrow?
In Mechanicsburg, the length of the day tomorrow will be 15h and 5min.

Hourly weather forecast

12 am
  • 72°F
  • Feels like:
    73°F
Few Showers
Few Showers
  • Wind: 5mph SSE
  • Pressure: 29.91"Hg
  • Humidity: 94%
  • Precip. probability: 30%
  • Precipitation: 0.04"
  • Visibility: 2mi
2 am
  • 70°F
  • Feels like:
    72°F
Cloudy
Cloudy
  • Wind: 2mph S
  • Pressure: 29.88"Hg
  • Humidity: 96%
  • Precip. probability: 19%
  • Precipitation: 0"
  • Visibility: 2mi
4 am
  • 70°F
  • Feels like:
    72°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 2mph SSE
  • Pressure: 29.88"Hg
  • Humidity: 95%
  • Precip. probability: 22%
  • Precipitation: 0"
  • Visibility: 4mi
Sunrise: 5:36 am
6 am
  • 70°F
  • Feels like:
    72°F
Few Showers
Few Showers
  • Wind: 2mph SSE
  • Pressure: 29.88"Hg
  • Humidity: 96%
  • Precip. probability: 30%
  • Precipitation: 0.04"
  • Visibility: 2mi
8 am
  • 72°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 2mph S
  • Pressure: 29.91"Hg
  • Humidity: 95%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 2mi
10 am
  • 75°F
  • Feels like:
    79°F
Showers
Showers
  • Wind: 4mph SW
  • Pressure: 29.91"Hg
  • Humidity: 87%
  • Precip. probability: 56%
  • Precipitation: 0.04"
  • Visibility: 4mi
12 pm
  • 77°F
  • Feels like:
    82°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph WSW
  • Pressure: 29.91"Hg
  • Humidity: 79%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 6mi
2 pm
  • 81°F
  • Feels like:
    84°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph WSW
  • Pressure: 29.88"Hg
  • Humidity: 74%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 82°F
  • Feels like:
    88°F
Showers
Showers
  • Wind: 7mph W
  • Pressure: 29.85"Hg
  • Humidity: 70%
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • Visibility: 7mi
6 pm
  • 82°F
  • Feels like:
    88°F
Few Showers
Few Showers
  • Wind: 6mph WSW
  • Pressure: 29.85"Hg
  • Humidity: 69%
  • Precip. probability: 34%
  • Precipitation: 0.04"
  • Visibility: 10mi
8 pm
  • 81°F
  • Feels like:
    86°F
Mostly Sunny
Mostly Sunny
  • Wind: 4mph SW
  • Pressure: 29.85"Hg
  • Humidity: 75%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 8mi
Sunset: 8:41 pm
10 pm
  • 77°F
  • Feels like:
    81°F
Mostly Clear
Mostly Clear
  • Wind: 4mph SSW
  • Pressure: 29.85"Hg
  • Humidity: 85%
  • Precip. probability: 13%
  • Precipitation: 0"
  • Visibility: 7mi
Tomorrow, on Wednesday, weather will be unstable, and a mix of wet, gloomy, lightning-active and mostly clear weather is anticipated.
With minimal precipitation of 0.04", rainfall is expected at 12 am, 6 am, and from 9 am to 11 am, 1 pm, and from 3 pm to 6 pm.
The temperature will vary between a minimum of 69.8°F and a maximum of 82.4°F. The warmest part of the day will be from 3 pm to 7 pm.
The forecasted high is more close to July's typical maximum of 83.8°F than the usual for June. The minimum temperature will be also more in line with July's average low of 63.5°F than June's typical 58.6°F.
Updated: Jun 17, 2025 @ 20:50:14 UTC
Published by: Weather U.S. | About Us
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