Water Temperature of the Mississippi River in New Boston, IL

Current Water Temperature

32.0°F

Measurement Time: Tuesday, December 9, 2025, 9:10 AM CST

Temperature Locations

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Local Points of Interest

Wapello, IA; Port Louisa National Wildlife Refuge

Mississippi River

Station Name: New Boston 4NW - L&D 17
Data Source: USGS

Elevation Above Sea Level: 538 feet

Nearest Address:
100 Lock and Dam Rd
New Boston, IL 61272
Mercer County

GPS Coordinates: 41.1925, -91.0578

Nearby Water Temperatures

Mississippi River, Illinois City, IL (16.3 mi)
Mississippi River, Gladstone, IL (21.6 mi)
Mississippi River, Rock Island, IL (34.1 mi)
Mississippi River, Le Claire, IA (43.1 mi)
Mississippi River, Keokuk, IA (57.6 mi)
Mississippi River, Camanche, IA (58.2 mi)
Beaver Slough, Clinton, IA (62.7 mi)
Morgan Creek, Cedar Rapids, IA (65.9 mi)
Mississippi River, Fulton, IL (67.3 mi)
Mississippi River, Fulton, IL (67.5 mi)
North Fork Maquoketa River, Maquoketa, IA (69.3 mi)
Cedar River, Palo, IA (71.3 mi)
Des Moines River, Ottumwa, IA (71.6 mi)
Mississippi River, Canton, MO (76.3 mi)
Mississippi River, Bellevue, IA (80.8 mi)

Weather for New Boston, Illinois

Current Weather

84.4°F
Sunny
Sunny
82.6°F
88.5°F
31%
SSE 5.8 mph
6.7 mph
89.5°F
55.6°F
0 in
0%
6 mi
1016 mbar
7.5

Five Day Weather Forecast

Sunny
Tue
H: 92°F
L: 57°F
Sunny
Wed
H: 84°F
L: 62°F
Sunny
Thu
H: 77°F
L: 60°F
Sunny
Fri
H: 79°F
L: 53°F
Sunny
Sat
H: 80°F
L: 55°F

Air Quality

AQI: 1 - Good
PM2.5: 6.45 μg/m3
PM10: 7.75 μg/m3
Carbon Monoxide: 126.85 μg/m3
Nitrogen Dioxide: 2.65 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 112 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:01 PM
Sunset: 8:26 PM
Daylight: 14 hrs 50 mins
Moonrise: 4:14 PM
Moon Transit: 9:49 PM
Moonset: 2:55 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

8:49 AM - 11:19 AM
9:19 PM - 11:49 PM

Minor Periods

3:44 PM - 5:14 PM
2:25 AM - 3:55 AM

Action Rating: 2 out of 5

Tuesday, May 26, 2026

Weather Forecast

Sunny
92.1°F
56.8°F
76.1°F
45%
0 in
0%
0%
8.9 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 5.22 μg/m3
PM10: 5.77 μg/m3
Carbon Monoxide: 136.49 μg/m3
Nitrogen Dioxide: 5.73 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 83.8 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:01 PM
Sunset: 8:26 PM
Daylight: 14 hrs 50 mins
Moonrise: 4:14 PM
Moon Transit: 9:49 PM
Moonset: 2:55 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

8:49 AM - 11:19 AM
9:19 PM - 11:49 PM

Minor Periods

3:44 PM - 5:14 PM
2:25 AM - 3:55 AM

Action Rating: 2 out of 5

Wednesday, May 27, 2026

Weather Forecast

Sunny
83.7°F
61.6°F
72.9°F
63%
0 in
0%
0%
5.1 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 8.36 μg/m3
PM10: 9.6 μg/m3
Carbon Monoxide: 148.05 μg/m3
Nitrogen Dioxide: 9.07 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 85.6 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:01 PM
Sunset: 8:27 PM
Daylight: 14 hrs 51 mins
Moonrise: 5:17 PM
Moon Transit: 10:32 PM
Moonset: 3:16 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

9:31 AM - 12:01 AM
12:00 AM - 12:00 AM

Minor Periods

4:47 PM - 6:17 PM
2:46 AM - 4:16 AM

Action Rating: 2 out of 5

Thursday, May 28, 2026

Weather Forecast

Sunny
77.3°F
59.7°F
68.5°F
69%
0 in
0%
0%
11.2 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 8 μg/m3
Carbon Monoxide: 129.61 μg/m3
Nitrogen Dioxide: 6.79 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 83.56 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:01 PM
Sunset: 8:28 PM
Daylight: 14 hrs 53 mins
Moonrise: 6:21 PM
Moon Transit: 11:16 PM
Moonset: 3:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

10:15 AM - 12:45 AM
12:00 AM - 12:00 AM

Minor Periods

5:51 PM - 7:21 PM
3:09 AM - 4:39 AM

Action Rating: 2 out of 5

Friday, May 29, 2026

Weather Forecast

Sunny
78.8°F
53.3°F
66.4°F
66%
0 in
0%
0%
7.4 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 6.45 μg/m3
PM10: 7.4 μg/m3
Carbon Monoxide: 131.01 μg/m3
Nitrogen Dioxide: 5.73 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 83.28 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:01 PM
Sunset: 8:29 PM
Daylight: 14 hrs 54 mins
Moonrise: 7:25 PM
Moon Transit: 12:00 AM
Moonset: 4:05 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:01 AM - 1:31 PM

Minor Periods

6:55 PM - 8:25 PM
3:35 AM - 5:05 AM

Action Rating: 4 out of 5

Saturday, May 30, 2026

Weather Forecast

Sunny
79.6°F
55°F
67.8°F
61%
0 in
0%
0%
11.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.74 μg/m3
PM10: 6.1 μg/m3
Carbon Monoxide: 159.58 μg/m3
Nitrogen Dioxide: 7.99 μg/m3
Sulphur Dioxide: 2.48 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:01 PM
Sunset: 8:30 PM
Daylight: 14 hrs 55 mins
Moonrise: 8:27 PM
Moon Transit: 12:03 AM
Moonset: 4:37 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:49 AM - 2:19 PM

Minor Periods

7:57 PM - 9:27 PM
4:07 AM - 5:37 AM

Action Rating: 4 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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