Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

63.5°F

Measurement Time: Friday, June 12, 2026, 5:30 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

74.4°F
Clear
Clear
63.1°F
75.9°F
36%
ENE 7.2 mph
15 mph
74.4°F
45.6°F
0 in
0%
6 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 97°F
L: 64°F
Sunny
Sun
H: 93°F
L: 61°F
Sunny
Mon
H: 96°F
L: 62°F
Sunny
Tue
H: 97°F
L: 64°F
Sunny
Wed
H: 94°F
L: 64°F

Air Quality

AQI: 1 - Good
PM2.5: 3.3 μg/m3
PM10: 3.9 μg/m3
Carbon Monoxide: 110 μg/m3
Nitrogen Dioxide: 7.6 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 34 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

Heat Advisory issued June 12 at 10:09AM PDT until June 13 at 11:00PM PDT by NWS Hanford CA

Effective: Fri June 12, 2026, 10:09 AM
Expires: Fri June 12, 2026, 7:00 PM

* WHAT...High temperatures up to 101. * 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.


Heat Advisory issued June 12 at 6:49PM PDT until June 13 at 11:00PM PDT by NWS Hanford CA

Effective: Fri June 12, 2026, 6:49 PM
Expires: Sat June 13, 2026, 3:00 AM

* WHAT...High temperatures up to 103 degrees expected. * WHERE...A portion of central California. * WHEN...Until 11 PM PDT Saturday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Moderate Risk of heat-related illnesses to those sensitive to heat, such as older adults (65+), infants, athletes, outdoor workers, those without effective cooling, and those with chronic diseases. Some risk to general population.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Saturday, June 13, 2026

Weather Forecast

Sunny
97.2°F
63.5°F
81.5°F
26%
0 in
0%
0%
9.8 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 4.11 μg/m3
PM10: 5.52 μg/m3
Carbon Monoxide: 108.58 μg/m3
Nitrogen Dioxide: 3.21 μg/m3
Sulphur Dioxide: 0.65 μg/m3
Ozone: 82.63 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
92.6°F
60.5°F
76.4°F
27%
0 in
0%
0%
9.6 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 4.57 μg/m3
PM10: 6.13 μg/m3
Carbon Monoxide: 107.83 μg/m3
Nitrogen Dioxide: 3.19 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 81.42 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

Sunny
96.1°F
62.4°F
78.9°F
28%
0 in
0%
0%
9.6 mph
11.1


Air Quality

AQI: 1 - Good
PM2.5: 6.12 μg/m3
PM10: 8.55 μg/m3
Carbon Monoxide: 106.13 μg/m3
Nitrogen Dioxide: 3.73 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 80.13 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

Tuesday, June 16, 2026

Weather Forecast

Sunny
96.9°F
64.3°F
80.1°F
28%
0 in
1%
0%
9.8 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 6.74 μg/m3
PM10: 9.62 μg/m3
Carbon Monoxide: 113.02 μg/m3
Nitrogen Dioxide: 3.75 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 81.79 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:24 PM
Daylight: 14 hrs 48 mins
Moonrise: 7:04 AM
Moon Transit: 2:52 PM
Moonset: 10:32 PM
Moon Phase: New
Moon Illumination: 1.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:22 PM - 4:52 PM

Minor Periods

10:02 PM - 11:32 PM
6:34 AM - 8:04 AM

Action Rating: 3 out of 5

Wednesday, June 17, 2026

Weather Forecast

Sunny
94.3°F
64°F
75.2°F
30%
0 in
1%
0%
10.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6 μg/m3
PM10: 7.9 μg/m3
Carbon Monoxide: 151.17 μg/m3
Nitrogen Dioxide: 7.6 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 40.33 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:25 PM
Daylight: 14 hrs 48 mins
Moonrise: 8:22 AM
Moon Transit: 3:52 PM
Moonset: 11:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:22 PM - 5:52 PM

Minor Periods

12:00 AM - 12:00 AM
7:52 AM - 9:22 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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