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

62°F
Occasional Rain Showers
Occasional Rain Showers
91%
0 mph
59°F

Weather Forecast

Occasional Rain Showers
Overnight
61°F - Occasional Rain Showers
Occasional Rain Showers
Friday
67°F - Occasional Rain Showers
Mostly Cloudy
Friday Night
57°F - Mostly Cloudy
Mostly Cloudy then Chance Rain Showers
Saturday
65°F - Mostly Cloudy then Chance Rain Showers
Chance Rain Showers
Saturday Night
59°F - Chance Rain Showers
Chance Rain Showers
Sunday
68°F - Chance Rain Showers
Partly Cloudy
Sunday Night
59°F - Partly Cloudy
Mostly Sunny
Monday
72°F - Mostly Sunny
Partly Cloudy
Monday Night
60°F - Partly Cloudy
Rain Showers Likely
Tuesday
72°F - Rain Showers Likely
Showers And Thunderstorms Likely
Tuesday Night
63°F - Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Wednesday
72°F - Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Wednesday Night
61°F - Chance Showers And Thunderstorms
Chance Rain Showers
Thursday
72°F - Chance Rain Showers

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:55 AM
Sunset: 6:56 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:22 PM
Moon Transit: 12:00 AM
Moonset: 5:42 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:30 AM - 2:00 PM

Minor Periods

5:52 PM - 7:22 PM
5:12 AM - 6:42 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:55 AM
Sun Transit: 12:55 AM
Sunset: 6:56 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:22 PM
Moon Transit: 12:00 AM
Moonset: 5:42 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:30 AM - 2:00 PM

Minor Periods

5:52 PM - 7:22 PM
5:12 AM - 6:42 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:55 AM
Sun Transit: 12:55 AM
Sunset: 6:56 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:22 PM
Moon Transit: 12:00 AM
Moonset: 5:42 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:30 AM - 2:00 PM

Minor Periods

5:52 PM - 7:22 PM
5:12 AM - 6:42 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:55 AM
Sun Transit: 12:55 AM
Sunset: 6:56 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:22 PM
Moon Transit: 12:00 AM
Moonset: 5:42 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:30 AM - 2:00 PM

Minor Periods

5:52 PM - 7:22 PM
5:12 AM - 6:42 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:56 AM
Sun Transit: 12:55 AM
Sunset: 6:54 PM
Daylight: 11 hrs 59 mins
Moonrise: 6:44 PM
Moon Transit: 7:33 AM
Moonset: 6:51 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

7:03 AM - 9:33 AM
7:03 AM - 9:33 AM

Minor Periods

6:14 PM - 7:44 PM
6:21 AM - 7:51 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:56 AM
Sun Transit: 12:55 AM
Sunset: 6:54 PM
Daylight: 11 hrs 59 mins
Moonrise: 6:44 PM
Moon Transit: 7:33 AM
Moonset: 6:51 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

7:03 AM - 9:33 AM
7:03 AM - 9:33 AM

Minor Periods

6:14 PM - 7:44 PM
6:21 AM - 7:51 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:57 AM
Sun Transit: 12:55 AM
Sunset: 6:53 PM
Daylight: 11 hrs 56 mins
Moonrise: 7:07 PM
Moon Transit: 1:15 AM
Moonset: 8:01 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 AM
1:00 PM - 3:30 PM

Minor Periods

6:37 PM - 8:07 PM
7:31 AM - 9:01 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:57 AM
Sun Transit: 12:55 AM
Sunset: 6:53 PM
Daylight: 11 hrs 56 mins
Moonrise: 7:07 PM
Moon Transit: 1:15 AM
Moonset: 8:01 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 AM
1:00 PM - 3:30 PM

Minor Periods

6:37 PM - 8:07 PM
7:31 AM - 9:01 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:58 AM
Sun Transit: 12:54 AM
Sunset: 6:51 PM
Daylight: 11 hrs 53 mins
Moonrise: 7:35 PM
Moon Transit: 2:04 AM
Moonset: 9:14 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:34 AM - 4:04 AM
1:50 PM - 4:20 PM

Minor Periods

7:05 PM - 8:35 PM
8:44 AM - 10:14 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:58 AM
Sun Transit: 12:54 AM
Sunset: 6:51 PM
Daylight: 11 hrs 53 mins
Moonrise: 7:35 PM
Moon Transit: 2:04 AM
Moonset: 9:14 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:34 AM - 4:04 AM
1:50 PM - 4:20 PM

Minor Periods

7:05 PM - 8:35 PM
8:44 AM - 10:14 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:59 AM
Sun Transit: 12:54 AM
Sunset: 6:49 PM
Daylight: 11 hrs 50 mins
Moonrise: 8:10 PM
Moon Transit: 2:56 AM
Moonset: 10:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:26 AM - 4:56 AM
2:45 PM - 5:15 PM

Minor Periods

7:40 PM - 9:10 PM
10:01 AM - 11:31 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:59 AM
Sun Transit: 12:54 AM
Sunset: 6:49 PM
Daylight: 11 hrs 50 mins
Moonrise: 8:10 PM
Moon Transit: 2:56 AM
Moonset: 10:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:26 AM - 4:56 AM
2:45 PM - 5:15 PM

Minor Periods

7:40 PM - 9:10 PM
10:01 AM - 11:31 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:00 AM
Sun Transit: 12:54 AM
Sunset: 6:48 PM
Daylight: 11 hrs 48 mins
Moonrise: 8:52 PM
Moon Transit: 3:52 AM
Moonset: 11:47 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:22 AM - 5:52 AM
3:43 PM - 6:13 PM

Minor Periods

8:22 PM - 9:52 PM
11:17 AM - 12:47 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:00 AM
Sun Transit: 12:54 AM
Sunset: 6:48 PM
Daylight: 11 hrs 48 mins
Moonrise: 8:52 PM
Moon Transit: 3:52 AM
Moonset: 11:47 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:22 AM - 5:52 AM
3:43 PM - 6:13 PM

Minor Periods

8:22 PM - 9:52 PM
11:17 AM - 12:47 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:01 AM
Sun Transit: 12:53 AM
Sunset: 6:46 PM
Daylight: 11 hrs 45 mins
Moonrise: 9:45 PM
Moon Transit: 4:52 AM
Moonset: 1:01 PM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:22 AM - 6:52 AM
4:45 PM - 7:15 PM

Minor Periods

9:15 PM - 10:45 PM
12:31 AM - 2:01 PM

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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