Water Temperature of the American River in Folsom, CA

Current Water Temperature

59.2°F

Measurement Time: Sunday, November 23, 2025, 11:45 PM PST

Temperature Locations

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Local Points of Interest

Folsom Dam; Folsom Lake

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American River

Station Name: AMERICAN R BL FOLSOM DAM NR FOLSOM CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 184 feet / 56 meters

Nearest Address:
500 Folsom Dam Rd
Folsom, CA 95630
Sacramento County

GPS Coordinates: 38.70452778, -121.164361

Nearby Water Temperatures

South Fork American River, Rescue, CA (9.3 mi)
North Fork American River, Auburn, CA (13.5 mi)
Cache Creek, Yolo, CA (34.7 mi)
Sacramento River, Walnut Grove, CA (36.3 mi)
Sacramento River, Walnut Grove, CA (37.6 mi)
Sacramento River, Meridian, CA (41.3 mi)
Sacramento River Deep Water Ship Chennel, Rio Vista, CA (42.4 mi)
Blackwood Creek, Idlewild, CA (60.6 mi)
General Creek, Tahoma, CA (61.2 mi)
Maxwell Creek, Saint Helena, CA (64.1 mi)
Upper Truckee River, South Lake Tahoe, CA (64.9 mi)
Pope Creek, Saint Helena, CA (64.9 mi)
Suisun Bay, Concord, CA (65.2 mi)
Trout Creek, South Lake Tahoe, CA (65.9 mi)
Carquinez Strait, Martinez, CA (69.6 mi)

Weather for Folsom, California

Current Weather

50.7°F
Mist
Conditions: Mist
Humidity: 100%
Feels Like: 51.2°F
Wind: NE 2.2 mph
Wind Gusts: 3.8 mph
Pressure: 30.27 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 1 mi
UV Index: 0

Five Day Weather Forecast

Fog
Mon
H: 53°F
L: 45°F
Cloudy
Tue
H: 52°F
L: 44°F
Partly Cloudy
Wed
H: 55°F
L: 45°F
Partly Cloudy
Thu
H: 60°F
L: 43°F
Sunny
Fri
H: 61°F
L: 47°F

Air Quality

AQI: 2 - Moderate
PM2.5: 23.95 μg/m3
PM10: 24.55 μg/m3
Carbon Monoxide: 332.85 μg/m3
Nitrogen Dioxide: 31.35 μg/m3
Sulphur Dioxide: 3.15 μg/m3
Ozone: 2 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 11:51 AM
Sunset: 4:46 PM
Daylight: 9 hrs 49 mins
Moonrise: 10:58 AM
Moon Transit: 3:36 PM
Moonset: 8:20 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:06 PM - 5:36 PM

Minor Periods

7:50 PM - 9:20 PM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

Dense Fog Advisory issued November 24 at 2:01PM PST until November 25 at 11:00AM PST by NWS Sacramento CA

Effective: Mon November 24, 2025, 2:01 PM
Expires: Tue November 25, 2025, 11:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Carquinez Strait and Delta, Central Sacramento Valley, Northern San Joaquin Valley, and Southern Sacramento Valley. * WHEN...From midnight tonight to 11 AM PST Tuesday. * 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: Fog
Average Temperature: 48.7°F
Average Humidity: 96%
Chance of Rain: 0%
Wind: 5.6 mph
UV Index: 0.5

Air Quality

AQI: 2 - Moderate
PM2.5: 30.76 μg/m3
PM10: 31.95 μg/m3
Carbon Monoxide: 540.41 μg/m3
Nitrogen Dioxide: 33.31 μg/m3
Sulphur Dioxide: 6.18 μg/m3
Ozone: 18.4 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 11:51 AM
Sunset: 4:46 PM
Daylight: 9 hrs 49 mins
Moonrise: 10:58 AM
Moon Transit: 3:36 PM
Moonset: 8:20 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:06 PM - 5:36 PM

Minor Periods

7:50 PM - 9:20 PM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

Tuesday, November 25, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 48.5°F
Average Humidity: 91%
Chance of Rain: 0%
Wind: 4.3 mph
UV Index: 0.5

Air Quality

AQI: 2 - Moderate
PM2.5: 22.54 μg/m3
PM10: 23.09 μg/m3
Carbon Monoxide: 481.25 μg/m3
Nitrogen Dioxide: 31.53 μg/m3
Sulphur Dioxide: 4.14 μg/m3
Ozone: 20.24 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 11:51 AM
Sunset: 4:45 PM
Daylight: 9 hrs 47 mins
Moonrise: 11:33 AM
Moon Transit: 4:25 PM
Moonset: 9:25 PM
Moon Phase: Waxing Crescent
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:55 PM - 6:25 PM

Minor Periods

8:55 PM - 10:25 PM
11:03 AM - 12:33 AM

Action Rating: 2 out of 5

Wednesday, November 26, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 49.2°F
Average Humidity: 89%
Chance of Rain: 0%
Wind: 3.6 mph
UV Index: 0.5

Air Quality

AQI: 2 - Moderate
PM2.5: 27.16 μg/m3
PM10: 27.91 μg/m3
Carbon Monoxide: 489.89 μg/m3
Nitrogen Dioxide: 36.05 μg/m3
Sulphur Dioxide: 5.23 μg/m3
Ozone: 16.56 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 11:52 AM
Sunset: 4:45 PM
Daylight: 9 hrs 46 mins
Moonrise: 12:04 AM
Moon Transit: 5:13 PM
Moonset: 10:31 PM
Moon Phase: First Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

12:02 AM - 2:32 AM
4:43 PM - 7:13 PM

Minor Periods

10:01 PM - 11:31 PM
11:34 AM - 1:04 PM

Action Rating: 3 out of 5

Thursday, November 27, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 49.9°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 4.3 mph
UV Index: 0.5

Air Quality

AQI: 2 - Moderate
PM2.5: 22.47 μg/m3
PM10: 23.03 μg/m3
Carbon Monoxide: 466.01 μg/m3
Nitrogen Dioxide: 35.05 μg/m3
Sulphur Dioxide: 4.18 μg/m3
Ozone: 16.64 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 11:52 AM
Sunset: 4:45 PM
Daylight: 9 hrs 44 mins
Moonrise: 12:30 AM
Moon Transit: 5:58 PM
Moonset: 11:37 PM
Moon Phase: First Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
5:28 PM - 7:58 PM

Minor Periods

12:00 AM - 12:00 AM
12:00 AM - 1:30 PM

Action Rating: 2 out of 5

Friday, November 28, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 53°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 4.5 mph
UV Index: 0.4

Air Quality

AQI: 2 - Moderate
PM2.5: 22.5 μg/m3
PM10: 22.97 μg/m3
Carbon Monoxide: 522.23 μg/m3
Nitrogen Dioxide: 40.81 μg/m3
Sulphur Dioxide: 4.06 μg/m3
Ozone: 11.31 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 11:52 AM
Sunset: 4:44 PM
Daylight: 9 hrs 43 mins
Moonrise: 12:55 AM
Moon Transit: 6:44 PM
Moonset: 12:37 AM
Moon Phase: First Quarter
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

1:34 AM - 4:04 AM
6:14 PM - 8:44 PM

Minor Periods

12:25 AM - 1:55 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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