Weather forecast for tomorrow
Chatham, PA

Weather forecast for tomorrow

Wednesday, Jun 18.

PM Thunderstorms
5:33 am

8:36 pm
EDT
PM Thunderstorms
86°F / 72°F
  • Wind: 8mph SSW
  • Humidity: 84%
  • Precip. probability: 40%
  • Precipitation: 0.12"
  • UV index: 7
Tomorrow, in Chatham, thunderstorms may roll in by the afternoon, bringing brief intense rainfall.
Minimal precipitation is forecasted. Temperatures will oscillate between a hot 86°F at their highest and a delightful 71.6°F at their lowest.
The maximum heat index, which modifies the air temperature to account for humidity, is assessed at a fiery hot 102.2°F. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The forecast high is higher and more aligned with what is typical in July than in June.
Sunrise will be at 5:33 am and sunset at 8:36 pm; tomorrow's daylight will last for 15h and 3min.

Frequently asked questions

What is the weather forecast for Chatham for tomorrow?
On Wednesday, thunder and rain showers will move in during the afternoon.
Will it rain tomorrow in Chatham?
Tomorrow, there is a low chance of minimal precipitation in Chatham.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 86°F, while the minimum temperature will be 71.6°F. The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be 102.2°F.
The highest temperature will be moderately higher than the average maximum of 78.6°F in June. The lowest temperature will be uncommonly higher than the average low of 61.5°F.
What time are sunrise and sunset tomorrow?
On Wednesday, in Chatham, sunrise will be at 5:33 am and sunset at 8:36 pm (EDT).
How long will the day be tomorrow?
In Chatham, tomorrow, there will be 15h and 3min of daylight.

Hourly weather forecast

12 am
  • 70°F
  • Feels like:
    70°F
Showers
Showers
  • Wind: 5mph SSE
  • Pressure: 29.94"Hg
  • Humidity: 97%
  • Precip. probability: 46%
  • Precipitation: 0.04"
  • Visibility: 2mi
2 am
  • 70°F
  • Feels like:
    72°F
Foggy
Foggy
  • Wind: 4mph SSE
  • Pressure: 29.91"Hg
  • Humidity: 98%
  • Precip. probability: 22%
  • Precipitation: 0"
  • Visibility: 0mi
4 am
  • 70°F
  • Feels like:
    72°F
Cloudy
Cloudy
  • Wind: 3mph SSE
  • Pressure: 29.91"Hg
  • Humidity: 100%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 1mi
Sunrise: 5:33 am
6 am
  • 70°F
  • Feels like:
    72°F
Cloudy
Cloudy
  • Wind: 2mph SSE
  • Pressure: 29.91"Hg
  • Humidity: 100%
  • Precip. probability: 19%
  • Precipitation: 0"
  • Visibility: 1mi
8 am
  • 72°F
  • Feels like:
    75°F
Cloudy
Cloudy
  • Wind: 3mph S
  • Pressure: 29.91"Hg
  • Humidity: 97%
  • Precip. probability: 21%
  • Precipitation: 0"
  • Visibility: 1mi
10 am
  • 75°F
  • Feels like:
    81°F
Cloudy
Cloudy
  • Wind: 4mph SSW
  • Pressure: 29.91"Hg
  • Humidity: 90%
  • Precip. probability: 18%
  • Precipitation: 0"
  • Visibility: 5mi
12 pm
  • 79°F
  • Feels like:
    86°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph SSW
  • Pressure: 29.88"Hg
  • Humidity: 84%
  • Precip. probability: 21%
  • Precipitation: 0"
  • Visibility: 9mi
2 pm
  • 82°F
  • Feels like:
    91°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 7mph SW
  • Pressure: 29.85"Hg
  • Humidity: 77%
  • Precip. probability: 40%
  • Precipitation: 0.08"
  • Visibility: 7mi
4 pm
  • 84°F
  • Feels like:
    91°F
Cloudy
Cloudy
  • Wind: 7mph SW
  • Pressure: 29.83"Hg
  • Humidity: 74%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 82°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph WSW
  • Pressure: 29.85"Hg
  • Humidity: 78%
  • Precip. probability: 17%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 79°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph SW
  • Pressure: 29.85"Hg
  • Humidity: 83%
  • Precip. probability: 7%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:36 pm
10 pm
  • 77°F
  • Feels like:
    81°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph SW
  • Pressure: 29.88"Hg
  • Humidity: 87%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 7mi
Tomorrow, weather will be unstable, and a combination of primarily cloud-filled and occasionally rain-filled, fog-covered and storm-filled weather is forecasted.
Rainfall is anticipated at 12 am, 2 pm, 3 pm and 5 pm. With light precipitation of 0.08", most rainfall is expected at 2 pm.
The temperature will vary between a minimum of 69.8°F and a maximum of 84.2°F. The feels-like temperature will be between the lowest temperature of 69.8°F and the highest temperature of 91.4°F. The hottest part of the day will be at 3 pm and 4 pm.
The maximum temperature will be more resembling July's average high of 84.2°F than June's 78.6°F. The expected low will be also more consistent with what’s common in July than the current June average of 61.5°F.
Updated: Jun 17, 2025 @ 22:31:22 UTC
Published by: Weather U.S. | About Us
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