Water Temperature of the Mississippi River in New Boston, IL

Current Water Temperature

45.9°F

Measurement Time: Sunday, November 23, 2025, 9:10 AM CST

Temperature Locations

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Local Points of Interest

Wapello, IA; Port Louisa National Wildlife Refuge

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Mississippi River

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

Elevation Above Sea Level: 538 feet / 164 meters

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

43.3°F
Fog
Conditions: Fog
Humidity: 100%
Feels Like: 38.5°F
Wind: S 8.3 mph
Wind Gusts: 16.2 mph
Pressure: 30.06 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 0 mi
UV Index: 0.4

Five Day Weather Forecast

Patchy rain nearby
Mon
H: 55°F
L: 39°F
Patchy rain nearby
Tue
H: 55°F
L: 39°F
Overcast
Wed
H: 36°F
L: 31°F
Sunny
Thu
H: 38°F
L: 25°F
Moderate or heavy snow showers
Fri
H: 37°F
L: 21°F

Air Quality

AQI: 1 - Good
PM2.5: 8.75 μg/m3
PM10: 8.85 μg/m3
Carbon Monoxide: 191.85 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 11:51 AM
Sunset: 4:39 PM
Daylight: 9 hrs 36 mins
Moonrise: 11:04 AM
Moon Transit: 3:32 PM
Moonset: 8:06 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

2:28 AM - 4:58 AM
3:02 PM - 5:32 PM

Minor Periods

7:36 PM - 9:06 PM
10:34 AM - 12:04 AM

Action Rating: 2 out of 5

Dense Fog Advisory issued November 23 at 8:40PM CST until November 24 at 10:00AM CST by NWS Quad Cities IA IL

Effective: Sun November 23, 2025, 8:40 PM
Expires: Mon November 24, 2025, 4:45 AM

* WHAT...Visibility one quarter mile in dense fog. * WHERE...Portions of northwest and west central Illinois and east central, northeast, and southeast Iowa. * WHEN...From midnight tonight to 10 AM CST Monday. * IMPACTS...Low visibility could make driving conditions hazardous tonight into Monday morning.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued November 24 at 3:03AM CST until November 24 at 10:00AM CST by NWS Quad Cities IA IL

Effective: Mon November 24, 2025, 3:03 AM
Expires: Mon November 24, 2025, 10:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northwest and west central Illinois and east central, northeast, and southeast Iowa. * WHEN...Until 10 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous this morning.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued November 23 at 8:40PM CST until November 24 at 10:00AM CST by NWS Quad Cities IA IL

Effective: Sun November 23, 2025, 8:40 PM
Expires: Mon November 24, 2025, 4:45 AM

* WHAT...Visibility one quarter mile in dense fog. * WHERE...In Illinois, Hancock and McDonough Counties. In Iowa, Henry IA, Jefferson, Keokuk, Lee, and Van Buren Counties. In Missouri, Clark and Scotland Counties. * WHEN...Until 10 AM CST Monday. * IMPACTS...Low visibility could make driving conditions hazardous tonight into Monday morning.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued November 24 at 3:03AM CST until November 24 at 10:00AM CST by NWS Quad Cities IA IL

Effective: Mon November 24, 2025, 3:03 AM
Expires: Mon November 24, 2025, 10:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Illinois, Hancock and McDonough Counties. In Iowa, Henry IA, Jefferson, Keokuk, Lee, and Van Buren Counties. In Missouri, Clark and Scotland Counties. * WHEN...Until 10 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous this morning.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued November 24 at 3:03AM CST until November 24 at 12:00PM CST by NWS Quad Cities IA IL

Effective: Mon November 24, 2025, 3:03 AM
Expires: Mon November 24, 2025, 11:15 AM

* WHAT...Visibility one quarter to one half mile in dense fog. * WHERE...Portions of north central and northwest Illinois and east central and northeast Iowa. * WHEN...Until noon CST today. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Dense fog and low clouds will move north across the Advisory area after 5 AM this morning, and linger though noon.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued November 23 at 11:11PM CST until November 24 at 10:00AM CST by NWS Lincoln IL

Effective: Sun November 23, 2025, 11:11 PM
Expires: Mon November 24, 2025, 10:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...Until 10 AM CST Monday. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Monday, November 24, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 46.4°F
Average Humidity: 93%
Chance of Rain: 90%
Wind: 12.1 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 9.16 μg/m3
PM10: 9.4 μg/m3
Carbon Monoxide: 203.25 μg/m3
Nitrogen Dioxide: 8.99 μg/m3
Sulphur Dioxide: 2.72 μg/m3
Ozone: 43.76 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 11:51 AM
Sunset: 4:39 PM
Daylight: 9 hrs 36 mins
Moonrise: 11:04 AM
Moon Transit: 3:32 PM
Moonset: 8:06 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

2:28 AM - 4:58 AM
3:02 PM - 5:32 PM

Minor Periods

7:36 PM - 9:06 PM
10:34 AM - 12:04 AM

Action Rating: 2 out of 5

Tuesday, November 25, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 48.1°F
Average Humidity: 89%
Chance of Rain: 84%
Wind: 18.8 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 12.45 μg/m3
PM10: 12.54 μg/m3
Carbon Monoxide: 204.53 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 2.28 μg/m3
Ozone: 37.96 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 11:51 AM
Sunset: 4:38 PM
Daylight: 9 hrs 34 mins
Moonrise: 11:38 AM
Moon Transit: 4:21 PM
Moonset: 9:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

3:18 AM - 5:48 AM
3:51 PM - 6:21 PM

Minor Periods

8:42 PM - 10:12 PM
11:08 AM - 12:38 AM

Action Rating: 2 out of 5

Wednesday, November 26, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 34.2°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 23.5 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 2.64 μg/m3
PM10: 2.7 μg/m3
Carbon Monoxide: 149.93 μg/m3
Nitrogen Dioxide: 3.17 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 60.16 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 11:51 AM
Sunset: 4:38 PM
Daylight: 9 hrs 33 mins
Moonrise: 12:07 AM
Moon Transit: 5:08 PM
Moonset: 10:20 PM
Moon Phase: First Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

4:06 AM - 6:36 AM
4:38 PM - 7:08 PM

Minor Periods

9:50 PM - 11:20 PM
11:37 AM - 1:07 PM

Action Rating: 4 out of 5

Thursday, November 27, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 30.6°F
Average Humidity: 50%
Chance of Rain: 0%
Wind: 14.3 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 2.7 μg/m3
PM10: 2.73 μg/m3
Carbon Monoxide: 149.73 μg/m3
Nitrogen Dioxide: 3.18 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 61.24 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 11:52 AM
Sunset: 4:38 PM
Daylight: 9 hrs 31 mins
Moonrise: 12:32 AM
Moon Transit: 5:54 PM
Moonset: 11:27 PM
Moon Phase: First Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

4:53 AM - 7:23 AM
5:24 PM - 7:54 PM

Minor Periods

12:00 AM - 12:00 AM
12:02 AM - 1:32 PM

Action Rating: 3 out of 5

Friday, November 28, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 28.5°F
Average Humidity: 57%
Chance of Rain: 59%
Wind: 16.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 3.5 μg/m3
PM10: 3.5 μg/m3
Carbon Monoxide: 171.54 μg/m3
Nitrogen Dioxide: 4.94 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 51.62 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 11:52 AM
Sunset: 4:37 PM
Daylight: 9 hrs 30 mins
Moonrise: 12:54 AM
Moon Transit: 6:39 PM
Moonset: 12:27 AM
Moon Phase: First Quarter
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

5:38 AM - 8:08 AM
6:09 PM - 8:39 PM

Minor Periods

12:24 AM - 1:54 PM
12:00 AM - 12:00 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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