Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

51.1°F

Measurement Time: Tuesday, November 18, 2025, 2:45 PM PST

Temperature Locations

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Local Points of Interest

Stanislaus National Forest; Mather, CA; Harden Flat, CA

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Tuolumne River

Station Name: TUOLUMNE R AB EARLY INTAKE NR MATHER CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 2,493 feet / 760 meters

Nearest Address:
Preston Falls Trail
Groveland, CA 95321
Tuolumne County

GPS Coordinates: 37.87936848, -119.947126

Nearby Water Temperatures

Tuolumne River, Groveland, CA (1.3 mi)
Cherry Creek, Groveland, CA (6.3 mi)
Tuolumne River, Groveland, CA (9.1 mi)
Tuolumne River, Groveland, CA (15.9 mi)
Merced River, Yosemite Valley, CA (23.5 mi)
Middle Fork San Joaquin River, Mammoth Lakes, CA (50.0 mi)
Deadman Creek, Mammoth Lakes, CA (55.7 mi)
Hot Creek, Mammoth Lakes, CA (61.6 mi)
Hot Creek, Mammoth Lakes, CA (62.1 mi)
San Joaquin River, Friant, CA (63.0 mi)
Hot Creek, Mammoth Lakes, CA (63.4 mi)
Trout Creek, South Lake Tahoe, CA (71.9 mi)
Upper Truckee River, South Lake Tahoe, CA (72.1 mi)
General Creek, Tahoma, CA (81.5 mi)
South Fork American River, Rescue, CA (83.9 mi)

Weather for Groveland, California

Current Weather

48.4°F
Overcast
Conditions: Overcast
Humidity: 93%
Feels Like: 46.8°F
Wind: ENE 4.3 mph
Wind Gusts: 8.9 mph
Pressure: 30.01 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Tue
H: 51°F
L: 39°F
Cloudy
Wed
H: 49°F
L: 29°F
Overcast
Thu
H: 45°F
L: 40°F
Partly Cloudy
Fri
H: 53°F
L: 30°F
Sunny
Sat
H: 58°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 5.05 μg/m3
PM10: 5.55 μg/m3
Carbon Monoxide: 141.85 μg/m3
Nitrogen Dioxide: 5.35 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 11:45 AM
Sunset: 4:46 PM
Daylight: 10 hrs 2 mins
Moonrise: 5:23 AM
Moon Transit: 10:33 AM
Moonset: 3:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

6:18 PM - 8:48 PM
10:03 AM - 12:33 AM

Minor Periods

3:07 PM - 4:37 PM
4:53 AM - 6:23 AM

Action Rating: 4 out of 5

Winter Weather Advisory issued November 18 at 4:28AM PST until November 18 at 10:00PM PST by NWS Hanford CA

Effective: Tue November 18, 2025, 4:28 AM
Expires: Tue November 18, 2025, 10:00 PM

* WHAT...Snow expected. Total snow accumulations 6 to 8 inches around 6,000 feet and up to 12 inches over some of the higher elevations. * WHERE...A portion of central California including the Sierra Mountains. * WHEN...Until 10 PM PST this evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Tuesday morning and evening commutes.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.


Dense Fog Advisory issued November 18 at 3:59PM PST until November 19 at 10:00AM PST by NWS Hanford CA

Effective: Tue November 18, 2025, 3:59 PM
Expires: Wed November 19, 2025, 12:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Across the Central and Southern portions of the San Joaquin Valley in Central California. * WHEN...From 3 AM to 10 AM PST Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Tuesday, November 18, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 44.7°F
Average Humidity: 83%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 2.77 μg/m3
PM10: 3.23 μg/m3
Carbon Monoxide: 118.89 μg/m3
Nitrogen Dioxide: 6.19 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 58.36 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 11:45 AM
Sunset: 4:46 PM
Daylight: 10 hrs 2 mins
Moonrise: 5:23 AM
Moon Transit: 10:33 AM
Moonset: 3:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

6:18 PM - 8:48 PM
10:03 AM - 12:33 AM

Minor Periods

3:07 PM - 4:37 PM
4:53 AM - 6:23 AM

Action Rating: 4 out of 5

Wednesday, November 19, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 45°F
Average Humidity: 90%
Chance of Rain: 0%
Wind: 6.7 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 5.44 μg/m3
PM10: 6.61 μg/m3
Carbon Monoxide: 133.85 μg/m3
Nitrogen Dioxide: 5.6 μg/m3
Sulphur Dioxide: 2.87 μg/m3
Ozone: 58.12 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 11:45 AM
Sunset: 4:46 PM
Daylight: 10 hrs mins
Moonrise: 6:24 AM
Moon Transit: 11:18 AM
Moonset: 4:08 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

7:04 PM - 9:34 PM
10:48 AM - 1:18 PM

Minor Periods

3:38 PM - 5:08 PM
5:54 AM - 7:24 AM

Action Rating: 4 out of 5

Thursday, November 20, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 43°F
Average Humidity: 82%
Chance of Rain: 0%
Wind: 5.1 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 4.06 μg/m3
PM10: 4.41 μg/m3
Carbon Monoxide: 143.97 μg/m3
Nitrogen Dioxide: 5 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 63.92 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 11:45 AM
Sunset: 4:45 PM
Daylight: 9 hrs 59 mins
Moonrise: 7:25 AM
Moon Transit: 12:06 AM
Moonset: 4:45 PM
Moon Phase: New
Moon Illumination: 2.7%

Best Times for Fishing or Hunting

Major Periods

7:53 PM - 10:23 PM
11:36 AM - 2:06 PM

Minor Periods

4:15 PM - 5:45 PM
6:55 AM - 8:25 AM

Action Rating: 4 out of 5

Friday, November 21, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 40.2°F
Average Humidity: 71%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 2.48 μg/m3
PM10: 2.65 μg/m3
Carbon Monoxide: 142.29 μg/m3
Nitrogen Dioxide: 6.07 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 61.8 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 11:45 AM
Sunset: 4:44 PM
Daylight: 9 hrs 57 mins
Moonrise: 8:25 AM
Moon Transit: 12:57 AM
Moonset: 5:28 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

8:44 PM - 11:14 PM
12:27 AM - 2:57 PM

Minor Periods

4:58 PM - 6:28 PM
7:55 AM - 9:25 AM

Action Rating: 4 out of 5

Saturday, November 22, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 39.1°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 7.6 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 3.47 μg/m3
PM10: 4.07 μg/m3
Carbon Monoxide: 171.7 μg/m3
Nitrogen Dioxide: 7.1 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 57.85 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 11:46 AM
Sunset: 4:44 PM
Daylight: 9 hrs 56 mins
Moonrise: 9:19 AM
Moon Transit: 1:48 PM
Moonset: 6:19 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:18 PM - 3:48 PM

Minor Periods

5:49 PM - 7:19 PM
8:49 AM - 10:19 AM

Action Rating: 3 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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