Water Temperature of the Chattahoochee River in Alpharetta, GA

Current Water Temperature

54.5°F

Measurement Time: Sunday, January 11, 2026, 11:00 AM EST

Temperature Locations

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Local Points of Interest

Garrard Landing Park; Atlanta, GA

Chattahoochee River

Station Name: CHATTAHOOCHEE R 0.39 MI DS GA140, ALPHARETTA, GA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 892 feet

Nearest Address:
Garrard Landing Park
Alpharetta, GA 30022
Fulton County

GPS Coordinates: 33.97305556, -84.26888889

Nearby Water Temperatures

Peachtree Creek, Brookhaven, GA (10.7 mi)
Chattahoochee River, Suwanee, GA (10.8 mi)
Suwanee Creek, Suwanee, GA (11.1 mi)
Level Creek, Suwanee, GA (13.9 mi)
Richland Creek, Sugar Hill, GA (15.8 mi)
Pole Bridge Creek, Lithonia, GA (22.1 mi)
Etowah River, Cartersville, GA (30 mi)
Chattahoochee River, Helen, GA (59 mi)
Falling Creek, Juliette, GA (68 mi)
Hiwassee River , Reliance, TN (85 mi)
Richard B. Russell Lake, Calhoun Falls, SC (94.9 mi)
Cheoah River, Tapoco, NC (103.2 mi)
Lake Strom Thurmond, McCormick, SC (110.7 mi)
Saluda River, Williamston, SC (113.2 mi)
Oconaluftee River, Birdtown, NC (115.2 mi)

Weather for Alpharetta, Georgia

Current Weather

46°F
Sunny
Sunny
39.5°F
41.1°F
31%
NW 15 mph
17.2 mph
32.7°F
29.8°F
0 in
0%
9 mi
1026 mbar
0.7

Five Day Weather Forecast

Sunny
Sun
H: 48°F
L: 35°F
Sunny
Mon
H: 48°F
L: 29°F
Sunny
Tue
H: 54°F
L: 36°F
Patchy rain nearby
Wed
H: 60°F
L: 43°F
Blowing snow
Thu
H: 30°F
L: 26°F

Air Quality

AQI: 1 - Good
PM2.5: 6.15 μg/m3
PM10: 6.45 μg/m3
Carbon Monoxide: 201.85 μg/m3
Nitrogen Dioxide: 15.45 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 57 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:45 AM
Sunset: 5:47 PM
Daylight: 10 hrs 5 mins
Moonrise: 1:31 AM
Moon Transit: 7:00 AM
Moonset: 12:24 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
7:39 PM - 10:09 PM

Minor Periods

11:54 AM - 1:24 PM
1:01 AM - 2:31 AM

Action Rating: 2 out of 5

Flood Warning issued January 11 at 12:12AM EST until January 12 at 7:45AM EST by NWS Peachtree City GA

Effective: Sun January 11, 2026, 12:12 AM
Expires: Sun January 11, 2026, 12:15 PM

...The Flood Warning continues for the following rivers in Georgia... Big Creek near Alpharetta affecting Forsyth and Fulton Counties. * WHAT...Minor flooding is forecast. * WHERE...Big Creek near Alpharetta. * WHEN...Until Monday morning. * IMPACTS...At 7.0 feet, Flood Stage is reached. Minor flooding of woodlands and fields begin along the creek between Cumming in Forsyth County...to Alpharetta and Roswell in North Fulton County. Flooding starts to effect portions of The Big Creek Greenway near Alpharetta and some portions may become closed with around one foot of water...especially upstream and downstream from the gage on Kimball Bridge Road and near Rock Mill Park. Portions of the YMCA Campground off Preston Ridge Road will begin to flood. * ADDITIONAL DETAILS... - At 12:00 AM EST Sunday the stage was 6.0 feet. - Forecast...The river is expected to rise above flood stage this morning to a crest of 7.4 feet this evening. It will then fall below flood stage just after midnight tonight. - Flood stage is 7.0 feet. - Flood History...This crest compares to a previous crest of 7.4 feet on 01/27/2021. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at weather.gov/atlanta.


Flood Warning issued January 11 at 12:15AM EST until January 11 at 3:00PM EST by NWS Peachtree City GA

Effective: Sun January 11, 2026, 12:15 AM
Expires: Sun January 11, 2026, 12:15 PM

...The Flood Warning is extended for the following rivers in Georgia... Etowah River at GA 9 near Dawsonville affecting Dawson and Forsyth Counties. ...The Flood Warning continues for the following rivers in Georgia... Etowah River at Canton affecting Cherokee County. Etowah River Downstream I-575 at Canton affecting Cherokee County. ...The Flood Warning is cancelled for the following rivers in Georgia... Etowah River Downstream of GA 53 near Dawsonville affecting Dawson County. * WHAT...Minor flooding is forecast. * WHERE...Etowah River at Canton. * WHEN...Until this afternoon. * IMPACTS...At 17.0 feet, Minor flooding continues in the woodlands and fields along the river upstream and downstream from the gage by the Walaska Street bridge. Portions of recreational areas such as Boling Park behind the Cherokee County High School...the Cherokee County Fairgrounds and the Etowah River Greenway at Heritage Park will be flooded with up to one foot of water. The parking lot at Boling Park will begin to flood. * ADDITIONAL DETAILS... - At 11:15 PM EST Saturday the stage was 15.8 feet. - Forecast...The river is expected to rise to a crest of 16.7 feet this morning. It will then fall below flood stage late this morning. - Flood stage is 16.0 feet. - Flood History...This crest compares to a previous crest of 16.7 feet on 03/26/2021. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at weather.gov/atlanta.


Flood Warning issued January 11 at 12:15AM EST by NWS Peachtree City GA

Effective: Sun January 11, 2026, 12:15 AM
Expires: Sun January 11, 2026, 12:15 PM

...The Flood Warning is extended for the following rivers in Georgia... Etowah River at GA 9 near Dawsonville affecting Dawson and Forsyth Counties. ...The Flood Warning continues for the following rivers in Georgia... Etowah River at Canton affecting Cherokee County. Etowah River Downstream I-575 at Canton affecting Cherokee County. ...The Flood Warning is cancelled for the following rivers in Georgia... Etowah River Downstream of GA 53 near Dawsonville affecting Dawson County. * WHAT...Minor flooding is occurring. * WHERE...Etowah River Downstream I-575 at Canton. * WHEN...Until further notice. * IMPACTS...At 20.0 feet, Minor flooding continues to expand in the woodlands and fields along the river generally east of Canton near the Interstate 575 bridge. A rock landing and grassy lot behind a pump station off of Riverstone Parkway and areas behind the businesses on Old Ball Ground Highway and Keith Drive are flooded with up to two feet of water. * ADDITIONAL DETAILS... - At 11:45 PM EST Saturday the stage was 19.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:45 PM EST Saturday was 19.5 feet. - Forecast...No forecast is available for this location. - Flood stage is 17.0 feet. - Flood History...This crest compares to a previous crest of 20.1 feet on 03/25/2020. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at weather.gov/atlanta.


Flood Warning issued January 11 at 10:45AM EST by NWS Peachtree City GA

Effective: Sun January 11, 2026, 10:45 AM
Expires: Sun January 11, 2026, 10:45 PM

...The Flood Warning continues for the following rivers in Georgia... Etowah River Downstream I-575 at Canton affecting Cherokee County. * WHAT...Minor flooding is occurring. * WHERE...Etowah River Downstream I-575 at Canton. * WHEN...Until further notice. * IMPACTS...At 18 feet, Minor flooding continues in the woodlands and fields along the river generally east of Canton near the Interstate 575 bridge. A rock landing and grassy lot behind the pump station off of Riverstone Parkway begins to flood. Flooding also occurs in areas behind the businesses on Old Ball Ground Highway and Keith Drive. * ADDITIONAL DETAILS... - At 9:45 AM EST Sunday the stage was 19.2 feet and falling. - Forecast...No forecast is available for this location. - Flood stage is 17 feet. - http://www.weather.gov/safety/flood

Caution is urged when walking near riverbanks. Additional information is available at weather.gov/atlanta.


Sunday, January 11, 2026

Weather Forecast

Sunny
47.5°F
34.8°F
42.8°F
71%
0 in
0%
0%
17 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 5.79 μg/m3
PM10: 5.99 μg/m3
Carbon Monoxide: 195.45 μg/m3
Nitrogen Dioxide: 9.01 μg/m3
Sulphur Dioxide: 4.09 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:45 AM
Sunset: 5:47 PM
Daylight: 10 hrs 5 mins
Moonrise: 1:31 AM
Moon Transit: 7:00 AM
Moonset: 12:24 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
7:39 PM - 10:09 PM

Minor Periods

11:54 AM - 1:24 PM
1:01 AM - 2:31 AM

Action Rating: 2 out of 5

Monday, January 12, 2026

Weather Forecast

Sunny
47.5°F
29.3°F
37.6°F
62%
0 in
0%
0%
9.8 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 8.12 μg/m3
PM10: 8.4 μg/m3
Carbon Monoxide: 249.49 μg/m3
Nitrogen Dioxide: 16.16 μg/m3
Sulphur Dioxide: 6.01 μg/m3
Ozone: 49.92 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:45 AM
Sunset: 5:48 PM
Daylight: 10 hrs 6 mins
Moonrise: 2:30 AM
Moon Transit: 7:44 AM
Moonset: 12:54 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

7:14 AM - 9:44 AM
8:24 PM - 10:54 PM

Minor Periods

12:24 AM - 1:54 PM
2:00 AM - 3:30 AM

Action Rating: 3 out of 5

Tuesday, January 13, 2026

Weather Forecast

Sunny
53.8°F
36°F
44.3°F
55%
0 in
0%
0%
8.1 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 13.17 μg/m3
PM10: 13.52 μg/m3
Carbon Monoxide: 327.21 μg/m3
Nitrogen Dioxide: 25.78 μg/m3
Sulphur Dioxide: 7.68 μg/m3
Ozone: 43.44 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:45 AM
Sunset: 5:49 PM
Daylight: 10 hrs 7 mins
Moonrise: 3:28 AM
Moon Transit: 8:30 AM
Moonset: 1:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

8:00 AM - 10:30 AM
9:11 PM - 11:41 PM

Minor Periods

12:57 AM - 2:27 PM
2:58 AM - 4:28 AM

Action Rating: 3 out of 5

Wednesday, January 14, 2026

Weather Forecast

Patchy rain nearby
60°F
42.9°F
49.8°F
51%
0.03 in
67%
0%
13.4 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 11.77 μg/m3
PM10: 11.86 μg/m3
Carbon Monoxide: 282.52 μg/m3
Nitrogen Dioxide: 21.47 μg/m3
Sulphur Dioxide: 6.17 μg/m3
Ozone: 53.08 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:46 AM
Sunset: 5:50 PM
Daylight: 10 hrs 8 mins
Moonrise: 4:27 AM
Moon Transit: 9:18 AM
Moonset: 2:08 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:48 AM - 11:18 AM
12:00 AM - 12:00 AM

Minor Periods

1:38 PM - 3:08 PM
3:57 AM - 5:27 AM

Action Rating: 2 out of 5

Thursday, January 15, 2026

Weather Forecast

Blowing snow
29.9°F
25.5°F
32°F
68%
0.11 in
89%
39%
20.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 9.65 μg/m3
PM10: 9.68 μg/m3
Carbon Monoxide: 219.01 μg/m3
Nitrogen Dioxide: 13.7 μg/m3
Sulphur Dioxide: 5.33 μg/m3
Ozone: 48.77 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:46 AM
Sunset: 5:51 PM
Daylight: 10 hrs 9 mins
Moonrise: 5:24 AM
Moon Transit: 10:09 AM
Moonset: 2:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:39 AM - 12:09 AM

Minor Periods

2:24 PM - 3:54 PM
4:54 AM - 6:24 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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