Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

63.1°F

Measurement Time: Thursday, June 11, 2026, 3:30 PM PDT

Temperature Locations

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Local Points of Interest

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

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

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 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 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

78.5°F
Clear
Clear
67.5°F
77.3°F
27%
ENE 6.7 mph
14.1 mph
78.5°F
41.4°F
0 in
0%
6 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 95°F
L: 67°F
Sunny
Fri
H: 95°F
L: 64°F
Sunny
Sat
H: 93°F
L: 61°F
Sunny
Sun
H: 93°F
L: 60°F
Patchy rain nearby
Mon
H: 96°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 3.5 μg/m3
PM10: 5 μg/m3
Carbon Monoxide: 126 μg/m3
Nitrogen Dioxide: 4.7 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:22 PM
Daylight: 14 hrs 46 mins
Moonrise: 2:33 AM
Moon Transit: 9:34 AM
Moonset: 4:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

5:23 PM - 7:53 PM
9:04 AM - 11:34 AM

Minor Periods

4:19 PM - 5:49 PM
2:03 AM - 3:33 AM

Action Rating: 3 out of 5

Heat Advisory issued June 11 at 10:44AM PDT until June 13 at 11:00PM PDT by NWS Hanford CA

Effective: Thu June 11, 2026, 10:44 AM
Expires: Thu June 11, 2026, 6:45 PM

* WHAT...High temperatures up to 101 expected. * WHERE...A portion of central California. * WHEN...Until 11 PM PDT Saturday. * 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.
Thursday, June 11, 2026

Weather Forecast

Sunny
95.4°F
66.9°F
81.5°F
31%
0 in
0%
0%
8.9 mph
11.1


Air Quality

AQI: 1 - Good
PM2.5: 3.14 μg/m3
PM10: 4.71 μg/m3
Carbon Monoxide: 114.71 μg/m3
Nitrogen Dioxide: 3.3 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 89.38 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:22 PM
Daylight: 14 hrs 46 mins
Moonrise: 2:33 AM
Moon Transit: 9:34 AM
Moonset: 4:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

5:23 PM - 7:53 PM
9:04 AM - 11:34 AM

Minor Periods

4:19 PM - 5:49 PM
2:03 AM - 3:33 AM

Action Rating: 3 out of 5

Friday, June 12, 2026

Weather Forecast

Sunny
94.7°F
64.1°F
81.1°F
25%
0 in
0%
0%
9.8 mph
11


Air Quality

AQI: 1 - Good
PM2.5: 4.06 μg/m3
PM10: 6 μg/m3
Carbon Monoxide: 114.04 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 89.71 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:23 PM
Daylight: 14 hrs 46 mins
Moonrise: 3:07 AM
Moon Transit: 10:30 AM
Moonset: 6:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

6:21 PM - 8:51 PM
10:00 AM - 12:30 AM

Minor Periods

5:36 PM - 7:06 PM
2:37 AM - 4:07 AM

Action Rating: 3 out of 5

Saturday, June 13, 2026

Weather Forecast

Sunny
93.3°F
61.3°F
76.9°F
26%
0 in
0%
0%
9.8 mph
11.4


Air Quality

AQI: 1 - Good
PM2.5: 4.37 μg/m3
PM10: 6.23 μg/m3
Carbon Monoxide: 107.96 μg/m3
Nitrogen Dioxide: 3.25 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 79.88 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:23 PM
Daylight: 14 hrs 47 mins
Moonrise: 3:50 AM
Moon Transit: 11:32 AM
Moonset: 7:24 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:25 PM - 9:55 PM
11:02 AM - 1:32 PM

Minor Periods

6:54 PM - 8:24 PM
3:20 AM - 4:50 AM

Action Rating: 3 out of 5

Sunday, June 14, 2026

Weather Forecast

Sunny
93.1°F
60.3°F
76.5°F
27%
0 in
0%
0%
9.6 mph
11


Air Quality

AQI: 1 - Good
PM2.5: 5.24 μg/m3
PM10: 7.53 μg/m3
Carbon Monoxide: 106.79 μg/m3
Nitrogen Dioxide: 3.19 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 81.75 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:24 PM
Daylight: 14 hrs 47 mins
Moonrise: 4:44 AM
Moon Transit: 12:39 AM
Moonset: 8:38 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

8:32 PM - 11:02 PM
12:09 AM - 2:39 PM

Minor Periods

8:08 PM - 9:38 PM
4:14 AM - 5:44 AM

Action Rating: 6 out of 5

Monday, June 15, 2026

Weather Forecast

Patchy rain nearby
95.6°F
61.8°F
78.6°F
27%
0.01 in
36%
0%
9.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.56 μg/m3
PM10: 9.32 μg/m3
Carbon Monoxide: 112.24 μg/m3
Nitrogen Dioxide: 3.34 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 85.58 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:24 PM
Daylight: 14 hrs 47 mins
Moonrise: 5:49 AM
Moon Transit: 1:47 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:17 PM - 3:47 PM

Minor Periods

9:11 PM - 10:41 PM
5:19 AM - 6:49 AM

Action Rating: 4 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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