No Watches or Warnings for Fontaine
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Weather Conditions for Fontaine, Pennsylvania : Chester County
Issued: 8:39 am EDT Sep 13, 2026 Latitude: 40.12121 Longitude: -75.8610476 View on Google Maps

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Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy on Today Mostly Clear on Tonight Sunny on Monday Sunny on Tuesday Sunny on Wednesday Mostly Sunny on Thursday Partly Sunny on Friday 40% chance of  on Saturday
High: 81°F Low: 63°F High: 73°F High: 74°F High: 79°F High: 82°F High: 81°F High: 77°F
Low: 49°F Low: 54°F Low: 60°F Low: 62°F Low: 60°F  
Mostly Cloudy Mostly Clear Sunny Sunny Sunny Mostly Sunny Partly Sunny Partly Sunny
Current Conditions at
POTTSTOWN - (KPTW)
70°
Cloudy
as of 10:54 AM EDST
Rel. Humidity: 94%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: IFR
Wind Data
3 MPH
350° North
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
READING - (KRDG)
70°
Cloudy
as of 10:54 AM EDST
Rel. Humidity: 88%
Dew Point: 66°F
Visibility: 7 Miles
Flight Rule: IFR
Wind Data
3 MPH
Cloud Level(s): Broken at 700ft, Solid Overcast at 2000ft
Current Conditions at
LANCASTER - (KLNS)
72°
Cloudy
Light Rain
as of 10:53 AM EDST
Rel. Humidity: 94%
Dew Point: 70°F
Visibility: 7 Miles
Pressure: 29.95 in.
Flight Rule: IFR
Wind Data
6 MPH
280° West
Cloud Level(s): Solid Overcast at 700ft
Mostly Cloudy on Today Today... Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind around 5 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 63. West wind 5 to 10 mph.

Sunny on Monday Monday... Sunny, with a high near 73. North wind 10 to 15 mph.

Clear on Monday Night Monday Night... Clear, with a low around 49. North wind around 5 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 74. Northeast wind around 5 mph becoming south in the afternoon.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 54.

Sunny on Wednesday Wednesday... Sunny, with a high near 79.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 60.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 82.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 62.

Partly Sunny on Friday Friday... Partly sunny, with a high near 81.

30% chance of rain Friday Night Friday Night... A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

40% chance of  Saturday Saturday... A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.

Pennsylvania's Warnings, Watches, and AdvisoriesPennsylvania's Watches, Warnings, and Advisories

Sun Almanac for Fontaine, Pennsylvania
Astronomical Sunrise 05:10 AM?Astronomical sunrise occurs when the Sun is 18° below the horizon and the sky begins to brighten from a completly darkened state.
Nautical Sunrise 05:43 AM?Nautical sunrise (or nautical dawn) is the precise moment when the sun's center is 12° below the horizon in the morning. It marks the beginning of nautical twilight, allowing pilots/mariners to see the horizon.
Civil Sunrise 06:15 AM?Civil sunrise is the moment in the morning when the sun's center is 6° below the horizon. It marks the start of morning civil twilight, providing enough natural light for most, outdoor activities without artificial lighting. It typically occurs roughly 20-30 minutes before actual sunrise.
Sunrise 06:43 AM?Sunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning. It marks the end of the twilight phase, often accompanied by distinct atmospheric colors.

Daylight: 12 Hours 33 Minutes?Daylight hours are the period of time between local sunrise and sunset, representing the daily portion of sunlight. These hours change in length based on season, Earth's tilt, and latitude.

Sunset 7:16 PM?The sunset is defined in astronomy as the moment the upper limb of the Sun disappears below the horizon. It marks the end of daylight and is often accompanied by distinct atmospheric colors. It also signals the beginning of twilight.
Civil Sunset 7:43 PM?Civil sunset (or evening civil twilight) occurs when the center of the sun is 6° below the horizon, marking the end of the brightest twilight phase. It typically occurs roughly 20-30 minutes after sunset, providing enough light for most outdoor activities to continue without artificial light.
Nautical Sunset 8:15 PM?Nautical sunset occurs when the sun's center is 12° below the horizon, marking the end of nautical twilight. This phase, following civil twilight, allows the horizon to remain visible, enabling mariners to take accurate star sights for navigation. The sky is dark, but some ambient light remains
Astronomical Sunset 8:48 PM?Astronomical sunrise occurs when the Sun drops to 18° below the horizon. This causes the sky to enter a completly darkened state.

Civil Rise to Set: 13 Hours 28 Minutes
Nautical Rise to Set: 14 Hours 32 Minutes
Astro Rise to Set: 15 Hours 38 Minutes

Click for yearly Sun Almanac for Fontaine
Moon Almanac for Fontaine, Pennsylvania
Moon Phase: Waxing Crescent
Moon Illumination: 7%
Moon Age: 2.55 Days
Moon is currently above the horizon
Distance from Moon to Earth: 243,168 miles
Upcoming Lunar Events for
Fontaine:
Next EventEvent TimeIllum

High Moon:02:54 pm Sun7.9%
Moonset:08:13 pm Sun9.2%
Moonrise:10:32 am Mon13.0%
High Moon:03:40 pm Mon14.5%
Moonset:08:40 pm Mon16.1%
New Moon: Thu Sep 10
First Quarter: Fri Sep 18
Full Moon: Sat Sep 26
Last Quarter: Sat Oct 3
New Moon: Sat Oct 10
Click for Monthly Moon Almanac