Station Name: Delaware River at Fort Mifflin at Philadelphia, PA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
Fort Mifflin Road
Philadelphia, PA 19153
Philadelphia County

GPS Coordinates: 39.8792798, -75.20268029

Nearby Water Temperatures

Cold Weather Advisory issued January 28 at 11:26PM EST until January 30 at 10:00AM EST by NWS Mount Holly NJ

Effective: Wed January 28, 2026, 11:26 PM
Expires: Thu January 29, 2026, 12:30 PM

* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Friday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. * ADDITIONAL DETAILS...Dangerously cold wind chills and or temperatures are expected through tonight.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Cold Weather Advisory issued January 29 at 2:09AM EST until January 30 at 10:00AM EST by NWS Mount Holly NJ

Effective: Thu January 29, 2026, 2:09 AM
Expires: Thu January 29, 2026, 4:15 PM

* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central, northern, northwest, and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Friday. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. * ADDITIONAL DETAILS...Dangerously cold wind chills and or temperatures are expected through tonight.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Cold Weather Advisory issued January 28 at 11:26PM EST until January 30 at 10:00AM EST by NWS Mount Holly NJ

Effective: Wed January 28, 2026, 11:26 PM
Expires: Thu January 29, 2026, 12:30 PM

* WHAT...Very cold wind chills as low as 20 below. * WHERE...Portions of central, northern, and northwest New Jersey and east central and southeast Pennsylvania. * WHEN...Until 10 AM EST Friday. * IMPACTS...The dangerously cold wind chills as low as 20 below zero could result in hypothermia or frostbite if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. * ADDITIONAL DETAILS...Dangerously cold wind chills and or temperatures are expected through tonight.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Cold Weather Advisory issued January 28 at 11:08PM EST until January 29 at 11:00AM EST by NWS Baltimore MD/Washington DC

Effective: Wed January 28, 2026, 11:08 PM
Expires: Thu January 29, 2026, 7:15 AM

* WHAT...For the first Cold Weather Advisory, very cold wind chills as low as 9 below zero. For the second Cold Weather Advisory, very cold wind chills as low as 9 below zero expected. * WHERE...Portions of DC, central, northeast, northern, and southern Maryland, and northern Virginia. * WHEN...For the first Cold Weather Advisory, until 11 AM EST Thursday. For the second Cold Weather Advisory, from 7 PM Thursday to 11 AM EST Friday. * IMPACTS...The cold wind chills as low as 9 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. Very cold temperatures can lead to hypothermia with prolonged exposure. * ADDITIONAL DETAILS...Additional Cold Weather Headlines are expected at times through the end of the week as the region remains in an Arctic airmass.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Cold Weather Advisory issued January 28 at 11:08PM EST until January 30 at 11:00AM EST by NWS Baltimore MD/Washington DC

Effective: Wed January 28, 2026, 11:08 PM
Expires: Thu January 29, 2026, 7:15 AM

* WHAT...For the first Cold Weather Advisory, very cold wind chills as low as 9 below zero. For the second Cold Weather Advisory, very cold wind chills as low as 9 below zero expected. * WHERE...Portions of DC, central, northeast, northern, and southern Maryland, and northern Virginia. * WHEN...For the first Cold Weather Advisory, until 11 AM EST Thursday. For the second Cold Weather Advisory, from 7 PM Thursday to 11 AM EST Friday. * IMPACTS...The cold wind chills as low as 9 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. Very cold temperatures can lead to hypothermia with prolonged exposure. * ADDITIONAL DETAILS...Additional Cold Weather Headlines are expected at times through the end of the week as the region remains in an Arctic airmass.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Cold Weather Advisory issued January 29 at 6:20AM EST until January 29 at 11:00AM EST by NWS Baltimore MD/Washington DC

Effective: Thu January 29, 2026, 6:20 AM
Expires: Thu January 29, 2026, 2:30 PM

* WHAT...For the first Cold Weather Advisory, very cold wind chills as low as 9 below zero. For the second Cold Weather Advisory, very cold wind chills as low as 9 below zero expected. * WHERE...Portions of DC, central, northeast, northern, and southern Maryland, and northern Virginia. * WHEN...For the first Cold Weather Advisory, until 11 AM EST this morning. For the second Cold Weather Advisory, from 7 PM this evening to 11 AM EST Friday. * IMPACTS...The cold wind chills as low as 9 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. Very cold temperatures can lead to hypothermia with prolonged exposure. * ADDITIONAL DETAILS...Additional Cold Weather Headlines are expected at times through the end of the week as the region remains in an Arctic airmass.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Cold Weather Advisory issued January 29 at 6:20AM EST until January 30 at 11:00AM EST by NWS Baltimore MD/Washington DC

Effective: Thu January 29, 2026, 6:20 AM
Expires: Thu January 29, 2026, 2:30 PM

* WHAT...For the first Cold Weather Advisory, very cold wind chills as low as 9 below zero. For the second Cold Weather Advisory, very cold wind chills as low as 9 below zero expected. * WHERE...Portions of DC, central, northeast, northern, and southern Maryland, and northern Virginia. * WHEN...For the first Cold Weather Advisory, until 11 AM EST this morning. For the second Cold Weather Advisory, from 7 PM this evening to 11 AM EST Friday. * IMPACTS...The cold wind chills as low as 9 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. Very cold temperatures can lead to hypothermia with prolonged exposure. * ADDITIONAL DETAILS...Additional Cold Weather Headlines are expected at times through the end of the week as the region remains in an Arctic airmass.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.