Water Temperature of the Chattahoochee River in Alpharetta, GA

Current Water Temperature

49.6°F

Measurement Time: Tuesday, March 17, 2026, 1:00 AM EDT

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

30.9°F
Clear
Clear
22.2°F
30.8°F
61%
NW 10.3 mph
13 mph
23.2°F
23.1°F
0 in
0%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 47°F
L: 31°F
Partly Cloudy
Wed
H: 51°F
L: 34°F
Sunny
Thu
H: 64°F
L: 38°F
Sunny
Fri
H: 74°F
L: 51°F
Patchy rain nearby
Sat
H: 79°F
L: 55°F

Air Quality

AQI: 2 - Moderate
PM2.5: 6.95 μg/m3
PM10: 8.45 μg/m3
Carbon Monoxide: 200.85 μg/m3
Nitrogen Dioxide: 7.05 μg/m3
Sulphur Dioxide: 3.45 μg/m3
Ozone: 81 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:00 AM
Sunset: 7:46 PM
Daylight: 12 hrs 2 mins
Moonrise: 6:56 AM
Moon Transit: 12:40 AM
Moonset: 6:34 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
12:10 AM - 2:40 PM

Minor Periods

6:04 PM - 7:34 PM
6:26 AM - 7:56 AM

Action Rating: 5 out of 5

Freeze Warning issued March 16 at 10:24AM EDT until March 17 at 10:00AM EDT by NWS Peachtree City GA

Effective: Mon March 16, 2026, 10:24 AM
Expires: Tue March 17, 2026, 2:00 AM

* WHAT...For the Wind Advisory, northwest winds 10 to 20 mph with gusts up to 35 mph. For the Freeze Warning, sub-freezing temperatures as low as 26 expected. * WHERE...Portions of central, east central, north central, northeast, northwest, and west central Georgia. * WHEN...For the Wind Advisory, until 2 AM EDT Tuesday. For the Freeze Warning, from 11 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.


Wind Advisory issued March 16 at 10:24AM EDT until March 17 at 2:00AM EDT by NWS Peachtree City GA

Effective: Mon March 16, 2026, 10:24 AM
Expires: Tue March 17, 2026, 2:00 AM

* WHAT...For the Wind Advisory, northwest winds 10 to 20 mph with gusts up to 35 mph. For the Freeze Warning, sub-freezing temperatures as low as 26 expected. * WHERE...Portions of central, east central, north central, northeast, northwest, and west central Georgia. * WHEN...For the Wind Advisory, until 2 AM EDT Tuesday. For the Freeze Warning, from 11 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.


Freeze Warning issued March 17 at 2:05AM EDT until March 18 at 10:00AM EDT by NWS Peachtree City GA

Effective: Tue March 17, 2026, 2:05 AM
Expires: Tue March 17, 2026, 4:00 PM

* WHAT...For the first Freeze Warning, sub-freezing temperatures as low as 20. For the second Freeze Warning, sub-freezing temperatures as low as 22 expected. * WHERE...Portions of central, east central, north central, northeast, northwest, and west central Georgia. * WHEN...For the first Freeze Warning, until 10 AM EDT this morning. For the second Freeze Warning, from 11 PM this evening to 10 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.


Freeze Warning issued March 17 at 2:05AM EDT until March 17 at 10:00AM EDT by NWS Peachtree City GA

Effective: Tue March 17, 2026, 2:05 AM
Expires: Tue March 17, 2026, 4:00 PM

* WHAT...For the first Freeze Warning, sub-freezing temperatures as low as 20. For the second Freeze Warning, sub-freezing temperatures as low as 22 expected. * WHERE...Portions of central, east central, north central, northeast, northwest, and west central Georgia. * WHEN...For the first Freeze Warning, until 10 AM EDT this morning. For the second Freeze Warning, from 11 PM this evening to 10 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.
Tuesday, March 17, 2026

Weather Forecast

Sunny
46.8°F
30.7°F
36°F
62%
0 in
0%
0%
12.8 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 5.93 μg/m3
PM10: 6.82 μg/m3
Carbon Monoxide: 187.77 μg/m3
Nitrogen Dioxide: 5.34 μg/m3
Sulphur Dioxide: 2.53 μg/m3
Ozone: 89.28 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:00 AM
Sunset: 7:46 PM
Daylight: 12 hrs 2 mins
Moonrise: 6:56 AM
Moon Transit: 12:40 AM
Moonset: 6:34 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
12:10 AM - 2:40 PM

Minor Periods

6:04 PM - 7:34 PM
6:26 AM - 7:56 AM

Action Rating: 5 out of 5

Wednesday, March 18, 2026

Weather Forecast

Partly Cloudy
50.7°F
34.2°F
41.1°F
61%
0 in
0%
0%
7.8 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 10.75 μg/m3
PM10: 11.83 μg/m3
Carbon Monoxide: 241.05 μg/m3
Nitrogen Dioxide: 15.41 μg/m3
Sulphur Dioxide: 3.91 μg/m3
Ozone: 76.76 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:00 AM
Sunset: 7:47 PM
Daylight: 12 hrs 4 mins
Moonrise: 7:24 AM
Moon Transit: 12:00 AM
Moonset: 7:39 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:21 AM - 3:51 AM

Minor Periods

7:09 PM - 8:39 PM
6:54 AM - 8:24 AM

Action Rating: 3 out of 5

Thursday, March 19, 2026

Weather Forecast

Sunny
63.5°F
37.8°F
49.7°F
59%
0 in
0%
0%
8.1 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 14.03 μg/m3
PM10: 14.71 μg/m3
Carbon Monoxide: 266.05 μg/m3
Nitrogen Dioxide: 20.66 μg/m3
Sulphur Dioxide: 5.19 μg/m3
Ozone: 74.56 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:00 AM
Sunset: 7:48 PM
Daylight: 12 hrs 6 mins
Moonrise: 7:52 AM
Moon Transit: 1:31 AM
Moonset: 8:47 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
1:01 AM - 3:31 AM

Minor Periods

8:17 PM - 9:47 PM
7:22 AM - 8:52 AM

Action Rating: 5 out of 5

Friday, March 20, 2026

Weather Forecast

Sunny
74°F
50.6°F
61°F
59%
0 in
0%
0%
7.6 mph
1.6


Air Quality

AQI: 2 - Moderate
PM2.5: 26.33 μg/m3
PM10: 26.94 μg/m3
Carbon Monoxide: 406.67 μg/m3
Nitrogen Dioxide: 35.16 μg/m3
Sulphur Dioxide: 4.89 μg/m3
Ozone: 67.12 μg/m3

Astronomical

Sunrise: 7:40 AM
Sun Transit: 10:27 AM
Sunset: 7:49 PM
Daylight: 12 hrs 8 mins
Moonrise: 8:22 AM
Moon Transit: 3:03 PM
Moonset: 9:56 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

2:56 AM - 5:26 AM
2:33 PM - 5:03 PM

Minor Periods

9:26 PM - 10:56 PM
7:52 AM - 9:22 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Patchy rain nearby
79.2°F
55.4°F
63.6°F
67%
0.01 in
74%
0%
9.2 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 19.73 μg/m3
PM10: 20.03 μg/m3
Carbon Monoxide: 334.98 μg/m3
Nitrogen Dioxide: 33.4 μg/m3
Sulphur Dioxide: 5.98 μg/m3
Ozone: 60.15 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 12:00 AM
Sunset: 7:50 PM
Daylight: 12 hrs 10 mins
Moonrise: 8:55 AM
Moon Transit: 3:56 PM
Moonset: 11:08 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
3:26 PM - 5:56 PM

Minor Periods

12:00 AM - 12:00 AM
8:25 AM - 9:55 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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