Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

69.8°F

Measurement Time: Wednesday, June 24, 2026, 11:15 AM 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

87.9°F
Sunny
Sunny
76.3°F
84.6°F
22%
WSW 7.8 mph
9 mph
87.9°F
44.8°F
0 in
0%
6 mi
1012 mbar
1.5

Five Day Weather Forecast

Sunny
Wed
H: 93°F
L: 70°F
Sunny
Thu
H: 88°F
L: 57°F
Sunny
Fri
H: 75°F
L: 51°F
Sunny
Sat
H: 73°F
L: 43°F
Sunny
Sun
H: 74°F
L: 40°F

Air Quality

AQI: 1 - Good
PM2.5: 9.3 μg/m3
PM10: 13.8 μg/m3
Carbon Monoxide: 102 μg/m3
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 123 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:02 PM
Sunset: 8:26 PM
Daylight: 14 hrs 48 mins
Moonrise: 4:06 PM
Moon Transit: 9:13 PM
Moonset: 1:47 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

4:14 AM - 6:44 AM
8:43 PM - 11:13 PM

Minor Periods

3:36 PM - 5:06 PM
1:17 AM - 2:47 AM

Action Rating: 3 out of 5

Lake Wind Advisory issued June 24 at 11:45AM PDT until June 27 at 2:00AM PDT by NWS Reno NV

Effective: Wed June 24, 2026, 11:45 AM
Expires: Thu June 25, 2026, 5:00 PM

* WHAT...Southwest winds 15 to 25 mph with gusts up to 40 mph for Lake Tahoe, Donner Lake, and Prosser and Boca reservoirs. Wave heights 1 to 3 feet on Lake Tahoe. * WHERE...Greater Lake Tahoe Area. * WHEN...From 11 AM Friday to 2 AM PDT Saturday. * IMPACTS...Small boats, kayaks and paddle boards will be prone to capsizing and should remain off lake waters until conditions improve.

Check lake conditions before heading out and be prepared for a sudden increase in winds and wave heights. Consider postponing boating activities on the lake until a day with less wind.
Wednesday, June 24, 2026

Weather Forecast

Sunny
93.4°F
70.2°F
81.1°F
28%
0 in
0%
0%
10.5 mph
10.9


Air Quality

AQI: 1 - Good
PM2.5: 8.12 μg/m3
PM10: 11.35 μg/m3
Carbon Monoxide: 103.13 μg/m3
Nitrogen Dioxide: 3.66 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 89.75 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:02 PM
Sunset: 8:26 PM
Daylight: 14 hrs 48 mins
Moonrise: 4:06 PM
Moon Transit: 9:13 PM
Moonset: 1:47 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

4:14 AM - 6:44 AM
8:43 PM - 11:13 PM

Minor Periods

3:36 PM - 5:06 PM
1:17 AM - 2:47 AM

Action Rating: 3 out of 5

Thursday, June 25, 2026

Weather Forecast

Sunny
88.2°F
56.6°F
73.5°F
26%
0 in
0%
0%
10.5 mph
10.2


Air Quality

AQI: 1 - Good
PM2.5: 8.21 μg/m3
PM10: 12.54 μg/m3
Carbon Monoxide: 102.38 μg/m3
Nitrogen Dioxide: 3.52 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 89.96 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:02 PM
Sunset: 8:26 PM
Daylight: 14 hrs 48 mins
Moonrise: 5:08 PM
Moon Transit: 10:00 PM
Moonset: 2:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

4:59 AM - 7:29 AM
9:30 PM - 12:00 PM

Minor Periods

4:38 PM - 6:08 PM
1:45 AM - 3:15 AM

Action Rating: 2 out of 5

Friday, June 26, 2026

Weather Forecast

Sunny
75.1°F
50.6°F
64.5°F
43%
0 in
3%
0%
7.6 mph
5.9


Air Quality

AQI: 1 - Good
PM2.5: 6.22 μg/m3
PM10: 8.51 μg/m3
Carbon Monoxide: 99.75 μg/m3
Nitrogen Dioxide: 3.43 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 75.96 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:02 PM
Sunset: 8:26 PM
Daylight: 14 hrs 47 mins
Moonrise: 6:08 PM
Moon Transit: 10:48 PM
Moonset: 2:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%

Best Times for Fishing or Hunting

Major Periods

5:46 AM - 8:16 AM
12:00 AM - 12:00 AM

Minor Periods

5:38 PM - 7:08 PM
2:17 AM - 3:47 AM

Action Rating: 3 out of 5

Saturday, June 27, 2026

Weather Forecast

Sunny
72.9°F
42.5°F
58.8°F
58%
0 in
4%
0%
11.6 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 3.29 μg/m3
PM10: 4.43 μg/m3
Carbon Monoxide: 102.38 μg/m3
Nitrogen Dioxide: 3.18 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 62.21 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:02 PM
Sunset: 8:26 PM
Daylight: 14 hrs 47 mins
Moonrise: 7:06 PM
Moon Transit: 11:39 PM
Moonset: 3:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

6:35 AM - 9:05 AM
12:00 AM - 12:00 AM

Minor Periods

6:36 PM - 8:06 PM
2:55 AM - 4:25 AM

Action Rating: 3 out of 5

Sunday, June 28, 2026

Weather Forecast

Sunny
74.4°F
40.1°F
57.6°F
40%
0 in
1%
0%
10.5 mph
9.9


Air Quality

AQI: 1 - Good
PM2.5: 4.05 μg/m3
PM10: 5.42 μg/m3
Carbon Monoxide: 109 μg/m3
Nitrogen Dioxide: 7.52 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:03 PM
Sunset: 8:26 PM
Daylight: 14 hrs 47 mins
Moonrise: 8:00 PM
Moon Transit: 12:00 AM
Moonset: 4:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:26 AM - 9:56 AM

Minor Periods

7:30 PM - 9:00 PM
3:41 AM - 5:11 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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