Water Temperature of the St. Jones River in Dover, DE

Current Water Temperature

81.7°F

Measurement Time: Tuesday, July 8, 2025, 12:15 AM EDT

Temperature Locations

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Local Points of Interest

Silver Lake Park; Memorial Park

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St. Jones River

Station Name: ST JONES RIVER AT DOVER, DE
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 13 feet / 4 meters

Nearest Address:
199 E Division St
Dover, DE 19901
Kent County

GPS Coordinates: 39.1637222, -75.5190833

Nearby Water Temperatures

Murderkill River, Frederica, DE (11.1 mi)
Delaware Bay, Greenwich, NJ (12.4 mi)
Beaverdam Branch, Houston, DE (17.8 mi)
Silver Lake Tributary, Townsend, DE (21.1 mi)
Appoquinimink River, Odessa, DE (21.5 mi)
Delaware River, Middletown, DE (23.4 mi)
Chesapeake & Delaware Canal, Port Penn, DE (27.4 mi)
Chesapeake and Delaware Canal, Delaware City, DE (27.5 mi)
Chesapeake & Delaware Canal, Chesapeake City, MD (29.5 mi)
Broadkill River, Milton, DE (29.5 mi)
Cape May Canal, North Cape May, NJ (32.9 mi)
Delaware Bay, Lewes, DE (34.0 mi)
Christina River, Newark, DE (34.6 mi)
Delaware River, New Castle, DE (36.3 mi)
White Clay Creek, Newark, DE (37.9 mi)

Weather for Dover, Delaware

Current Weather

79.2°F
Fog
Conditions: Fog
Humidity: 92%
Feels Like: 87.7°F
Wind: WSW 6 mph
Wind Gusts: 12.7 mph
Pressure: 29.94 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Tue
H: 96°F
L: 75°F
Moderate rain
Wed
H: 81°F
L: 73°F
Heavy rain
Thu
H: 79°F
L: 74°F
Patchy rain nearby
Fri
H: 88°F
L: 72°F
Patchy rain nearby
Sat
H: 86°F
L: 74°F

Air Quality

AQI: 1 - Good
PM2.5: 22.2 μg/m3
PM10: 22.39 μg/m3
Carbon Monoxide: 427.35 μg/m3
Nitrogen Dioxide: 13.51 μg/m3
Sulphur Dioxide: 9.99 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:07 PM
Sunset: 8:31 PM
Daylight: 14 hrs 47 mins
Moonrise: 7:16 PM
Moon Transit: 11:40 PM
Moonset: 3:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 PM
12:00 AM - 12:00 AM

Minor Periods

6:46 PM - 8:16 PM
2:43 AM - 4:13 AM

Action Rating: 3 out of 5

Heat Advisory issued July 8 at 1:18AM EDT until July 8 at 8:00PM EDT by NWS Mount Holly NJ

Effective: Tue July 8, 2025, 1:18 AM
Expires: Tue July 8, 2025, 4:15 PM

* WHAT...Heat index values up to 106 expected. * WHERE...In Delaware, Kent and Inland Sussex Counties. In Maryland, Caroline, Kent MD, Queen Annes, and Talbot Counties. In New Jersey, Atlantic, Cape May, Cumberland, and Salem Counties. * WHEN...From 10 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Flood Watch issued July 7 at 10:59PM EDT until July 9 at 12:00AM EDT by NWS Mount Holly NJ

Effective: Mon July 7, 2025, 10:59 PM
Expires: Tue July 8, 2025, 4:30 PM

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of Delaware, including the following areas, Delaware Beaches, Inland Sussex, Kent and New Castle, northeast Maryland, including the following areas, Caroline, Kent MD, Queen Annes and Talbot, New Jersey, including the following areas, Atlantic, Atlantic Coastal Cape May, Camden, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington, Sussex, Warren and Western Monmouth, and Pennsylvania, including the following areas, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From Tuesday afternoon through Tuesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - A frontal boundary will collide with a tropical airmass and produce widespread showers and thunderstorms Tuesday afternoon into Tuesday night. Rainfall rates of up to 2 inches per hour or more will be possible, leading to flash flooding. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Heat Advisory issued July 8 at 1:18AM EDT until July 8 at 8:00PM EDT by NWS Mount Holly NJ

Effective: Tue July 8, 2025, 1:18 AM
Expires: Tue July 8, 2025, 4:15 PM

* WHAT...Heat index values up to 106 expected. * WHERE...In Delaware, Kent and Inland Sussex Counties. In Maryland, Caroline, Kent MD, Queen Annes, and Talbot Counties. In New Jersey, Atlantic, Cape May, Cumberland, and Salem Counties. * WHEN...From 10 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Flood Watch issued July 7 at 10:59PM EDT until July 9 at 12:00AM EDT by NWS Mount Holly NJ

Effective: Mon July 7, 2025, 10:59 PM
Expires: Tue July 8, 2025, 4:30 PM

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of Delaware, including the following areas, Delaware Beaches, Inland Sussex, Kent and New Castle, northeast Maryland, including the following areas, Caroline, Kent MD, Queen Annes and Talbot, New Jersey, including the following areas, Atlantic, Atlantic Coastal Cape May, Camden, Cape May, Coastal Atlantic, Coastal Ocean, Cumberland, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington, Sussex, Warren and Western Monmouth, and Pennsylvania, including the following areas, Berks, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From Tuesday afternoon through Tuesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - A frontal boundary will collide with a tropical airmass and produce widespread showers and thunderstorms Tuesday afternoon into Tuesday night. Rainfall rates of up to 2 inches per hour or more will be possible, leading to flash flooding. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Heat Advisory issued July 8 at 1:18AM EDT until July 8 at 8:00PM EDT by NWS Mount Holly NJ

Effective: Tue July 8, 2025, 1:18 AM
Expires: Tue July 8, 2025, 4:15 PM

* WHAT...Heat index values up to 106 expected. * WHERE...In Delaware, Kent and Inland Sussex Counties. In Maryland, Caroline, Kent MD, Queen Annes, and Talbot Counties. In New Jersey, Atlantic, Cape May, Cumberland, and Salem Counties. * WHEN...From 10 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Tuesday, July 8, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 83.7°F
Average Humidity: 82%
Chance of Rain: 89%
Wind: 18.8 mph
UV Index: 2.8

Air Quality

AQI: 2 - Moderate
PM2.5: 23.59 μg/m3
PM10: 24.15 μg/m3
Carbon Monoxide: 406.33 μg/m3
Nitrogen Dioxide: 11.73 μg/m3
Sulphur Dioxide: 12 μg/m3
Ozone: 110 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:07 PM
Sunset: 8:31 PM
Daylight: 14 hrs 47 mins
Moonrise: 7:16 PM
Moon Transit: 11:40 PM
Moonset: 3:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 PM
12:00 AM - 12:00 AM

Minor Periods

6:46 PM - 8:16 PM
2:43 AM - 4:13 AM

Action Rating: 3 out of 5

Wednesday, July 9, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 78.6°F
Average Humidity: 88%
Chance of Rain: 77%
Wind: 19 mph
UV Index: 2.7

Air Quality

AQI: 2 - Moderate
PM2.5: 27.12 μg/m3
PM10: 27.74 μg/m3
Carbon Monoxide: 415.73 μg/m3
Nitrogen Dioxide: 12.43 μg/m3
Sulphur Dioxide: 9.12 μg/m3
Ozone: 116.16 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:07 PM
Sunset: 8:30 PM
Daylight: 14 hrs 46 mins
Moonrise: 8:09 PM
Moon Transit: 12:00 AM
Moonset: 4:04 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:37 PM - 4:07 PM

Minor Periods

7:39 PM - 9:09 PM
3:34 AM - 5:04 AM

Action Rating: 3 out of 5

Thursday, July 10, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 76.3°F
Average Humidity: 93%
Chance of Rain: 88%
Wind: 11.6 mph
UV Index: 2.2

Air Quality

AQI: 2 - Moderate
PM2.5: 16.84 μg/m3
PM10: 17.01 μg/m3
Carbon Monoxide: 398.64 μg/m3
Nitrogen Dioxide: 8.42 μg/m3
Sulphur Dioxide: 2.38 μg/m3
Ozone: 99.48 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:07 PM
Sunset: 8:30 PM
Daylight: 14 hrs 45 mins
Moonrise: 8:54 PM
Moon Transit: 12:35 AM
Moonset: 5:04 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
2:32 PM - 5:02 PM

Minor Periods

8:24 PM - 9:54 PM
4:34 AM - 6:04 AM

Action Rating: 5 out of 5

Friday, July 11, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 78.9°F
Average Humidity: 80%
Chance of Rain: 88%
Wind: 11.6 mph
UV Index: 2.6

Air Quality

AQI: 2 - Moderate
PM2.5: 15.5 μg/m3
PM10: 15.65 μg/m3
Carbon Monoxide: 359.57 μg/m3
Nitrogen Dioxide: 9.98 μg/m3
Sulphur Dioxide: 2.88 μg/m3
Ozone: 97.6 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:07 PM
Sunset: 8:30 PM
Daylight: 14 hrs 44 mins
Moonrise: 9:32 PM
Moon Transit: 1:29 AM
Moonset: 6:10 AM
Moon Phase: Full
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
3:26 PM - 5:56 PM

Minor Periods

9:02 PM - 10:32 PM
5:40 AM - 7:10 AM

Action Rating: 4 out of 5

Saturday, July 12, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 79°F
Average Humidity: 81%
Chance of Rain: 84%
Wind: 8.5 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 11.84 μg/m3
PM10: 12.03 μg/m3
Carbon Monoxide: 421.8 μg/m3
Nitrogen Dioxide: 10.36 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 109 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:07 PM
Sunset: 8:29 PM
Daylight: 14 hrs 43 mins
Moonrise: 10:04 PM
Moon Transit: 2:22 AM
Moonset: 7:18 AM
Moon Phase: Full
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

1:52 AM - 4:22 AM
4:17 PM - 6:47 PM

Minor Periods

9:34 PM - 11:04 PM
6:48 AM - 8:18 AM

Action Rating: 3 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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