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

70°F
Sunny
Sunny
70°F
68.8°F
94%
SSW 16.3 mph
19.8 mph
68.8°F
63.4°F
0 in
0%
9 mi
1010 mbar
6

Five Day Weather Forecast

Moderate rain
Fri
H: 71°F
L: 51°F
Heavy rain
Sat
H: 60°F
L: 37°F
Sunny
Sun
H: 68°F
L: 32°F
Sunny
Mon
H: 71°F
L: 42°F
Moderate rain
Tue
H: 58°F
L: 44°F

Air Quality

AQI: 1 - Good
PM2.5: 4.35 μg/m3
PM10: 4.45 μg/m3
Carbon Monoxide: 146.85 μg/m3
Nitrogen Dioxide: 3.75 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 12:15 AM
Sunset: 6:01 PM
Daylight: 11 hrs 30 mins
Moonrise: 9:46 PM
Moon Transit: 2:15 AM
Moonset: 7:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.6%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
1:58 PM - 4:28 PM

Minor Periods

9:16 PM - 10:46 PM
7:11 AM - 8:41 AM

Action Rating: 2 out of 5

Flood Watch issued March 6 at 11:19AM CST by NWS Quad Cities IA IL

Effective: Fri March 6, 2026, 11:19 AM
Expires: Sat March 7, 2026, 11:30 AM

...The National Weather Service in Quad Cities IA IL has issued a Flood Watch for the following rivers in Iowa... Cedar River near Conesville affecting Louisa and Muscatine Counties. .A watch has been issued due to uncertainty with rainfall amounts and how much will soak into the ground. * WHAT...Flooding is possible. * WHERE...Cedar River near Conesville. * WHEN...From late Tuesday night until further notice. * IMPACTS...At 14.0 feet, Water affects residences along County Road F70. * ADDITIONAL DETAILS... - At 11:00 AM CST Friday the stage was 6.6 feet. - Forecast...Flood stage may be reached early Wednesday morning. - Flood stage is 13.0 feet. - http://www.weather.gov/safety/flood

If you are in the watch area, remain alert to possible flooding. Additional information is available at www.weather.gov/quadcities. The next statement will be issued by Saturday morning at 1130 AM CST.
Friday, March 6, 2026

Weather Forecast

Moderate rain
70.5°F
50.7°F
59.1°F
90%
0.4 in
89%
0%
18.1 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 10.19 μg/m3
PM10: 10.45 μg/m3
Carbon Monoxide: 214.85 μg/m3
Nitrogen Dioxide: 5.54 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 56.6 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 12:15 AM
Sunset: 6:01 PM
Daylight: 11 hrs 30 mins
Moonrise: 9:46 PM
Moon Transit: 2:15 AM
Moonset: 7:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.6%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
1:58 PM - 4:28 PM

Minor Periods

9:16 PM - 10:46 PM
7:11 AM - 8:41 AM

Action Rating: 2 out of 5

Saturday, March 7, 2026

Weather Forecast

Heavy rain
59.7°F
36.9°F
47.4°F
86%
0.85 in
86%
0%
19 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 3.12 μg/m3
PM10: 3.23 μg/m3
Carbon Monoxide: 164.61 μg/m3
Nitrogen Dioxide: 2.76 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 65.6 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 12:15 AM
Sunset: 6:02 PM
Daylight: 11 hrs 33 mins
Moonrise: 10:51 PM
Moon Transit: 3:00 AM
Moonset: 8:04 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.2%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
2:42 PM - 5:12 PM

Minor Periods

10:21 PM - 11:51 PM
7:34 AM - 9:04 AM

Action Rating: 2 out of 5

Sunday, March 8, 2026

Weather Forecast

Sunny
67.5°F
32.4°F
48.3°F
69%
0 in
0%
0%
19.5 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 3.93 μg/m3
Carbon Monoxide: 165.65 μg/m3
Nitrogen Dioxide: 3.37 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 71.04 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 12:00 AM
Sunset: 6:03 PM
Daylight: 11 hrs 36 mins
Moonrise: 11:55 PM
Moon Transit: 3:44 AM
Moonset: 8:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 69.3%

Best Times for Fishing or Hunting

Major Periods

3:14 AM - 5:44 AM
3:28 PM - 5:58 PM

Minor Periods

12:00 AM - 12:00 AM
8:01 AM - 9:31 AM

Action Rating: 3 out of 5

Monday, March 9, 2026

Weather Forecast

Sunny
70.7°F
41.7°F
54.9°F
70%
0 in
0%
0%
16.6 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 4.33 μg/m3
PM10: 4.66 μg/m3
Carbon Monoxide: 163.68 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 85.72 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 12:00 AM
Sunset: 6:04 PM
Daylight: 11 hrs 39 mins
Moonrise: 12:55 AM
Moon Transit: 4:31 AM
Moonset: 9:02 AM
Moon Phase: Waning Gibbous
Moon Illumination: 58.5%

Best Times for Fishing or Hunting

Major Periods

4:01 AM - 6:31 AM
4:16 PM - 6:46 PM

Minor Periods

8:32 AM - 10:02 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, March 10, 2026

Weather Forecast

Moderate rain
57.9°F
44.1°F
52.8°F
68%
0.39 in
86%
0%
16.1 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 5.39 μg/m3
PM10: 5.56 μg/m3
Carbon Monoxide: 158.37 μg/m3
Nitrogen Dioxide: 3.28 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 65.92 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:00 AM
Sunset: 6:06 PM
Daylight: 11 hrs 41 mins
Moonrise: 12:58 AM
Moon Transit: 5:20 AM
Moonset: 9:40 AM
Moon Phase: Last Quarter
Moon Illumination: 47.2%

Best Times for Fishing or Hunting

Major Periods

4:50 AM - 7:20 AM
5:07 PM - 7:37 PM

Minor Periods

9:10 AM - 10:40 AM
12:28 AM - 1:58 AM

Action Rating: 2 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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