Water Temperature of the Trinity River in Lewiston, CA

Current Water Temperature

48.9°F

Measurement Time: Sunday, April 19, 2026, 9:15 AM PDT

Temperature Locations

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Local Points of Interest

Lewiston Dam

Trinity River

Station Name: TRINITY R A LEWISTON CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,860 feet

Nearest Address:
165 Trinity River Hatchery Rd
Lewiston, CA 96052
Trinity County

GPS Coordinates: 40.7247222, -122.801111

Nearby Water Temperatures

Trinity River, Douglas City, CA (9.8 mi)
Trinity River, Helena, CA (16.7 mi)
Trinity River, Hoopa, CA (50.8 mi)
Klamath River, Orleans, CA (55.3 mi)
Mill Creek, Los Milinos, CA (61.8 mi)
Deer Creek, Vina, CA (66.5 mi)
Hat Creek, Old Station, CA (72.2 mi)
Humboldt Bay, Eureka, CA (74.2 mi)
Elder Creek, Branscomb, CA (81.9 mi)
Klamath River, Klamath, CA (81.9 mi)
Pacific Ocean, Manila, CA (82.2 mi)
Butte Creek, Chico, CA (89.9 mi)
Pacific Ocean, Eureka, CA (90.4 mi)
Crescent Harbor, Crescent City, CA (100.7 mi)
Klamath River, Keno, OR (101.2 mi)

Weather for Lewiston, California

Current Weather

70°F
Sunny
Sunny
70°F
72.9°F
28%
ESE 8.1 mph
9.3 mph
70.9°F
37.2°F
0 in
0%
9 mi
1010 mbar
3.4

Five Day Weather Forecast

Sunny
Sun
H: 71°F
L: 49°F
Heavy rain
Mon
H: 42°F
L: 38°F
Moderate rain
Tue
H: 51°F
L: 41°F
Patchy rain nearby
Wed
H: 50°F
L: 33°F
Sunny
Thu
H: 67°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 4.75 μg/m3
PM10: 10.55 μg/m3
Carbon Monoxide: 184.85 μg/m3
Nitrogen Dioxide: 4.35 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 116 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:10 PM
Sunset: 7:55 PM
Daylight: 13 hrs 29 mins
Moonrise: 7:29 AM
Moon Transit: 3:21 PM
Moonset: 11:24 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:51 PM - 5:21 PM

Minor Periods

12:00 AM - 12:00 AM
6:59 AM - 8:29 AM

Action Rating: 2 out of 5

Winter Storm Watch issued April 19 at 9:11AM PDT until April 22 at 5:00PM PDT by NWS Sacramento CA

Effective: Sun April 19, 2026, 9:11 AM
Expires: Mon April 20, 2026, 5:00 PM

* WHAT...Heavy snow possible above 5000 feet. Total snow accumulations of up to 12 to 18 inches, with up to 2 feet at the highest peaks. Minor accumulations of up to 2 inches possible down to 4500 feet. Southwest winds could gust as high as 50 mph. * WHERE...Sierra Nevada and southern Cascades above 5000 feet, including Highway 50, Interstate 80 and Lassen National Park. * WHEN...From late Monday night through Wednesday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Tuesday and Wednesday commutes. * ADDITIONAL DETAILS...Snow levels initially 6000 to 7000 feet Monday night, lowering to 5500 to 6500 feet Tuesday, and down to 4500 to 5500 feet Wednesday. Heaviest snowfall expected Tuesday afternoon and evening.

Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1.
Sunday, April 19, 2026

Weather Forecast

Sunny
71.2°F
48.7°F
59.6°F
37%
0 in
0%
0%
8.7 mph
5.1


Air Quality

AQI: 1 - Good
PM2.5: 4.12 μg/m3
PM10: 8.34 μg/m3
Carbon Monoxide: 170.13 μg/m3
Nitrogen Dioxide: 3.69 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 127.32 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:10 PM
Sunset: 7:55 PM
Daylight: 13 hrs 29 mins
Moonrise: 7:29 AM
Moon Transit: 3:21 PM
Moonset: 11:24 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:51 PM - 5:21 PM

Minor Periods

12:00 AM - 12:00 AM
6:59 AM - 8:29 AM

Action Rating: 2 out of 5

Monday, April 20, 2026

Weather Forecast

Heavy rain
42.4°F
37.6°F
42.2°F
82%
0.85 in
91%
0%
4.9 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 5.26 μg/m3
PM10: 11.3 μg/m3
Carbon Monoxide: 156.89 μg/m3
Nitrogen Dioxide: 4 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 106.84 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 1:10 PM
Sunset: 7:56 PM
Daylight: 13 hrs 31 mins
Moonrise: 8:20 AM
Moon Transit: 4:26 PM
Moonset: 12:24 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:56 PM - 6:26 PM

Minor Periods

7:50 AM - 9:20 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, April 21, 2026

Weather Forecast

Moderate rain
50.9°F
41°F
44.5°F
95%
0.3 in
88%
0%
3.1 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 1.86 μg/m3
PM10: 2.45 μg/m3
Carbon Monoxide: 156.09 μg/m3
Nitrogen Dioxide: 3.6 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 79.72 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 1:09 PM
Sunset: 7:57 PM
Daylight: 13 hrs 34 mins
Moonrise: 9:21 AM
Moon Transit: 5:31 PM
Moonset: 12:37 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
5:01 PM - 7:31 PM

Minor Periods

8:51 AM - 10:21 AM
12:07 AM - 1:37 AM

Action Rating: 3 out of 5

Wednesday, April 22, 2026

Weather Forecast

Patchy rain nearby
50°F
32.5°F
43.9°F
88%
0.19 in
82%
0%
5.8 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 1.12 μg/m3
PM10: 1.18 μg/m3
Carbon Monoxide: 152.39 μg/m3
Nitrogen Dioxide: 2.49 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 88.44 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 1:09 PM
Sunset: 7:58 PM
Daylight: 13 hrs 36 mins
Moonrise: 10:32 AM
Moon Transit: 6:33 PM
Moonset: 1:37 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

12:58 AM - 3:28 AM
6:03 PM - 8:33 PM

Minor Periods

10:02 AM - 11:32 AM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Thursday, April 23, 2026

Weather Forecast

Sunny
67°F
28.7°F
46.5°F
67%
0 in
0%
0%
4.3 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 3.03 μg/m3
PM10: 3.97 μg/m3
Carbon Monoxide: 157.89 μg/m3
Nitrogen Dioxide: 3.84 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 77.46 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:09 PM
Sunset: 7:59 PM
Daylight: 13 hrs 39 mins
Moonrise: 11:47 AM
Moon Transit: 7:30 PM
Moonset: 2:25 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
7:00 PM - 9:30 PM

Minor Periods

11:17 AM - 12:47 AM
1:55 AM - 3:25 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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