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

Current Water Temperature

77.5°F

Measurement Time: Wednesday, May 20, 2026, 2:25 AM EDT

Temperature Locations

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Local Points of Interest

Silver Lake Park; Memorial Park

St. Jones River

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

Elevation Above Sea Level: 13 feet

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 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

72.9°F
Partly Cloudy
Partly Cloudy
76.7°F
76.7°F
69%
SW 12.8 mph
22.4 mph
72.9°F
62.2°F
0 in
28%
6 mi
1017 mbar
0

Five Day Weather Forecast

Heavy rain
Wed
H: 89°F
L: 67°F
Moderate rain
Thu
H: 61°F
L: 53°F
Moderate rain
Fri
H: 53°F
L: 52°F
Moderate rain
Sat
H: 55°F
L: 52°F
Moderate rain
Sun
H: 56°F
L: 54°F

Air Quality

PM2.5: 8.95 μg/m3
PM10: 10.55 μg/m3
Carbon Monoxide: 165.85 μg/m3
Nitrogen Dioxide: 3.65 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 111 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:58 AM
Sunset: 8:13 PM
Daylight: 14 hrs 29 mins
Moonrise: 9:17 AM
Moon Transit: 5:04 PM
Moonset: 12:56 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
4:34 PM - 7:04 PM

Minor Periods

8:47 AM - 10:17 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Heat Advisory issued May 19 at 2:25PM EDT until May 20 at 8:00PM EDT by NWS Mount Holly NJ

Effective: Tue May 19, 2026, 2:25 PM
Expires: Wed May 20, 2026, 5:00 AM

* WHAT...Heat index values up to 99 degrees expected. * WHERE...In Delaware, New Castle County. In New Jersey, Mercer, Camden, Gloucester, and Northwestern Burlington Counties. In Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, and Philadelphia Counties. * WHEN...Until 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Maximum heat indices near 100 degrees during peak heating this afternoon and then again on Wednesday. Given the intensity of this early season stretch of heat and humidity, we are not fully acclimated to it and therefore impacts could be greater if precautions are not taken. Showers and some thunderstorms arrive later Wednesday afternoon and evening which will end this early season heat.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Wednesday, May 20, 2026

Weather Forecast

Heavy rain
89.3°F
67.3°F
77.7°F
64%
1.06 in
88%
0%
23.9 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 7.96 μg/m3
PM10: 9.59 μg/m3
Carbon Monoxide: 153.77 μg/m3
Nitrogen Dioxide: 4.15 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 109.36 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:58 AM
Sunset: 8:13 PM
Daylight: 14 hrs 29 mins
Moonrise: 9:17 AM
Moon Transit: 5:04 PM
Moonset: 12:56 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
4:34 PM - 7:04 PM

Minor Periods

8:47 AM - 10:17 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, May 21, 2026

Weather Forecast

Moderate rain
60.9°F
53.3°F
58.3°F
83%
0.25 in
88%
0%
13.6 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 4.8 μg/m3
PM10: 5.09 μg/m3
Carbon Monoxide: 167.63 μg/m3
Nitrogen Dioxide: 8.11 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 61.48 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 12:58 AM
Sunset: 8:14 PM
Daylight: 14 hrs 30 mins
Moonrise: 10:34 AM
Moon Transit: 6:01 PM
Moonset: 12:41 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
5:31 PM - 8:01 PM

Minor Periods

10:04 AM - 11:34 AM
12:11 AM - 1:41 AM

Action Rating: 3 out of 5

Friday, May 22, 2026

Weather Forecast

Moderate rain
53.3°F
52.3°F
53°F
91%
0.74 in
74%
0%
13.2 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 8.18 μg/m3
Carbon Monoxide: 153.3 μg/m3
Nitrogen Dioxide: 7.55 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 65.32 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 12:58 AM
Sunset: 8:15 PM
Daylight: 14 hrs 32 mins
Moonrise: 11:46 AM
Moon Transit: 6:51 PM
Moonset: 1:16 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

7:57 AM - 10:27 AM
6:21 PM - 8:51 PM

Minor Periods

11:16 AM - 12:46 AM
12:46 AM - 2:16 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Moderate rain
54.9°F
52°F
53.4°F
94%
0.75 in
64%
0%
16.8 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 5.28 μg/m3
PM10: 7.23 μg/m3
Carbon Monoxide: 129 μg/m3
Nitrogen Dioxide: 3.41 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 78.15 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:58 AM
Sunset: 8:16 PM
Daylight: 14 hrs 33 mins
Moonrise: 12:56 AM
Moon Transit: 7:38 PM
Moonset: 1:45 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
7:08 PM - 9:38 PM

Minor Periods

12:26 AM - 1:56 PM
1:15 AM - 2:45 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Moderate rain
55.6°F
54.2°F
55.2°F
95%
0.47 in
74%
0%
17.2 mph
3


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:58 AM
Sunset: 8:17 PM
Daylight: 14 hrs 35 mins
Moonrise: 2:01 PM
Moon Transit: 8:21 PM
Moonset: 2:09 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

9:30 AM - 12:00 AM
7:51 PM - 10:21 PM

Minor Periods

1:31 PM - 3:01 PM
1:39 AM - 3:09 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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