Water Temperature of the Mississippi River in Alton, IL

Current Water Temperature

39.5°F

Measurement Time: Sunday, January 21, 2024, 9:00 AM CST

Temperature Locations

View Nearby Locations     View All Illinois Locations     View Locations Near Me

Local Points of Interest

Maple Island; St. Louis, MO; Wood River, IL; Edward "Ted" and Pat Jones-Confluence Point State Park

Sponsored Content

Mississippi River

Station Name: Alton 2SE - Melvin Price L&D
Data Source: USGS

Elevation Above Sea Level: 407 feet / 124 meters

Nearest Address:
Lock and Dam Way
Alton, IL 62002
Madison County

GPS Coordinates: 38.8664, -90.1464

Nearby Water Temperatures

Missouri River, St Charles, MO (18.4 mi)
Mississippi River, Cap Au Gris, MO (30.6 mi)
Missouri River, Labadle, MO (42.7 mi)
Mississippi River, Clarksville, MO (53.7 mi)
Illinois River, Florence, IL (58.4 mi)
Sugar Creek, Chatham, IL (60.7 mi)
Lick Creek, Springfield, IL (63.3 mi)
Big River, Bonne Terre, MO (66.4 mi)
Missouri River, Hermann, MO (70.4 mi)
Illinois River, La Grange, IL (77.0 mi)
Mississippi River, Saverton, MO (79.4 mi)
Huzzah Creek, Butts, MO (84.1 mi)
East Fork Black River, Lesterville, MO (98.3 mi)
Mississippi River, Quincy, IL (99.1 mi)
Mason Tazewell Drainage Ditch, Topeka, IL (101.6 mi)

Weather for Alton, Illinois

Current Weather

75.6°F
Fog
Conditions: Fog
Humidity: 95%
Feels Like: 80.8°F
Wind: WSW 4.5 mph
Wind Gusts: 9.4 mph
Pressure: 30.15 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Wed
H: 94°F
L: 73°F
Partly Cloudy
Thu
H: 93°F
L: 75°F
Heavy rain
Fri
H: 91°F
L: 77°F
Moderate rain
Sat
H: 91°F
L: 71°F
Patchy rain nearby
Sun
H: 92°F
L: 72°F

Air Quality

PM2.5: 20.17 μg/m3
PM10: 21.83 μg/m3
Carbon Monoxide: 388.5 μg/m3
Nitrogen Dioxide: 10.73 μg/m3
Sulphur Dioxide: 5 μg/m3
Ozone: 121 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:03 PM
Sunset: 8:30 PM
Daylight: 14 hrs 54 mins
Moonrise: 5:21 AM
Moon Transit: 1:24 PM
Moonset: 9:22 PM
Moon Phase: New
Moon Illumination: 1.6%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 AM
12:54 AM - 3:24 PM

Minor Periods

8:52 PM - 10:22 PM
4:51 AM - 6:21 AM

Action Rating: 4 out of 5

Heat Advisory issued June 24 at 1:47PM CDT until June 26 at 9:00PM CDT by NWS St Louis MO

Effective: Tue June 24, 2025, 1:47 PM
Expires: Wed June 25, 2025, 5:00 AM

* WHAT...Heat index values up to 104. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 9 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Heat Advisory issued June 24 at 1:47PM CDT until June 26 at 9:00PM CDT by NWS St Louis MO

Effective: Tue June 24, 2025, 1:47 PM
Expires: Wed June 25, 2025, 5:00 AM

* WHAT...Heat index values up to 104. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 9 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Heat Advisory issued June 24 at 1:47PM CDT until June 26 at 9:00PM CDT by NWS St Louis MO

Effective: Tue June 24, 2025, 1:47 PM
Expires: Wed June 25, 2025, 5:00 AM

* WHAT...Heat index values up to 104. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 9 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Heat Advisory issued June 24 at 1:47PM CDT until June 26 at 9:00PM CDT by NWS St Louis MO

Effective: Tue June 24, 2025, 1:47 PM
Expires: Wed June 25, 2025, 5:00 AM

* WHAT...Heat index values up to 104. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 9 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Heat Advisory issued June 24 at 1:47PM CDT until June 26 at 9:00PM CDT by NWS St Louis MO

Effective: Tue June 24, 2025, 1:47 PM
Expires: Wed June 25, 2025, 5:00 AM

* WHAT...Heat index values up to 104. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 9 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Wednesday, June 25, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 80.9°F
Average Humidity: 85%
Chance of Rain: 84%
Wind: 8.3 mph
UV Index: 2.4

Air Quality

AQI: 2 - Moderate
PM2.5: 19.51 μg/m3
PM10: 21.5 μg/m3
Carbon Monoxide: 407.74 μg/m3
Nitrogen Dioxide: 20.27 μg/m3
Sulphur Dioxide: 5.91 μg/m3
Ozone: 108.84 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:03 PM
Sunset: 8:30 PM
Daylight: 14 hrs 54 mins
Moonrise: 5:21 AM
Moon Transit: 1:24 PM
Moonset: 9:22 PM
Moon Phase: New
Moon Illumination: 1.6%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 AM
12:54 AM - 3:24 PM

Minor Periods

8:52 PM - 10:22 PM
4:51 AM - 6:21 AM

Action Rating: 4 out of 5

Thursday, June 26, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 83.8°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 8.9 mph
UV Index: 2.4

Air Quality

AQI: 2 - Moderate
PM2.5: 17.46 μg/m3
PM10: 18.76 μg/m3
Carbon Monoxide: 355.5 μg/m3
Nitrogen Dioxide: 16.1 μg/m3
Sulphur Dioxide: 5.11 μg/m3
Ozone: 105.12 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:03 PM
Sunset: 8:30 PM
Daylight: 14 hrs 53 mins
Moonrise: 6:33 AM
Moon Transit: 2:25 PM
Moonset: 10:09 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:24 AM - 3:54 AM
1:55 PM - 4:25 PM

Minor Periods

9:39 PM - 11:09 PM
6:03 AM - 7:33 AM

Action Rating: 4 out of 5

Friday, June 27, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 81.9°F
Average Humidity: 76%
Chance of Rain: 87%
Wind: 13.4 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 12 μg/m3
PM10: 12.96 μg/m3
Carbon Monoxide: 286.01 μg/m3
Nitrogen Dioxide: 13.31 μg/m3
Sulphur Dioxide: 4.58 μg/m3
Ozone: 99.16 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:03 PM
Sunset: 8:30 PM
Daylight: 14 hrs 53 mins
Moonrise: 7:47 AM
Moon Transit: 3:22 PM
Moonset: 10:46 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
2:52 PM - 5:22 PM

Minor Periods

10:16 PM - 11:46 PM
7:17 AM - 8:47 AM

Action Rating: 3 out of 5

Saturday, June 28, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 80.5°F
Average Humidity: 79%
Chance of Rain: 88%
Wind: 7.6 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 12.38 μg/m3
PM10: 12.72 μg/m3
Carbon Monoxide: 370.71 μg/m3
Nitrogen Dioxide: 24.55 μg/m3
Sulphur Dioxide: 4.5 μg/m3
Ozone: 68.15 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:04 PM
Sunset: 8:30 PM
Daylight: 14 hrs 53 mins
Moonrise: 8:58 AM
Moon Transit: 4:12 PM
Moonset: 11:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

3:16 AM - 5:46 AM
3:42 PM - 6:12 PM

Minor Periods

12:00 AM - 12:00 AM
8:28 AM - 9:58 AM

Action Rating: 3 out of 5

Sunday, June 29, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 79.7°F
Average Humidity: 80%
Chance of Rain: 80%
Wind: 11.6 mph
UV Index: 0.1

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: 5:38 AM
Sun Transit: 1:04 PM
Sunset: 8:30 PM
Daylight: 14 hrs 52 mins
Moonrise: 10:06 AM
Moon Transit: 4:58 PM
Moonset: 12:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

4:05 AM - 6:35 AM
4:28 PM - 6:58 PM

Minor Periods

9:36 AM - 11:06 AM
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.

Webcams Near Alton, IL

Sponsored Content