Water Temperature of the Trinity River in Lewiston, CA

Current Water Temperature

50.4°F

Measurement Time: Thursday, May 14, 2026, 5:45 PM 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

46.9°F
Clear
Clear
44.2°F
55.5°F
66%
WNW 5.6 mph
11.7 mph
54.3°F
32.2°F
0 in
0%
9 mi
1020 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 76°F
L: 39°F
Sunny
Sat
H: 72°F
L: 31°F
Sunny
Sun
H: 75°F
L: 33°F
Sunny
Mon
H: 81°F
L: 38°F
Sunny
Tue
H: 84°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 3.75 μg/m3
PM10: 5.05 μg/m3
Carbon Monoxide: 123.85 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:07 PM
Sunset: 8:22 PM
Daylight: 14 hrs 28 mins
Moonrise: 4:44 AM
Moon Transit: 12:02 AM
Moonset: 7:35 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:28 PM - 9:58 PM
11:32 AM - 2:02 PM

Minor Periods

7:05 PM - 8:35 PM
4:14 AM - 5:44 AM

Action Rating: 5 out of 5

Fire Weather Watch issued May 14 at 10:24AM PDT until May 18 at 8:00PM PDT by NWS Sacramento CA

Effective: Thu May 14, 2026, 10:24 AM
Expires: Fri May 15, 2026, 5:00 PM

The National Weather Service in Sacramento has issued a Fire Weather Watch for gusty winds and low humidity, which is in effect from late Friday night through Monday evening. * Winds...North winds 15 to 25 mph. Gusts 35 to 45 mph, locally up to 50 mph around the Delta. * Humidity...Daytime minimum humidities of 9 to 15%. * Highest Threat...Along the Interstate 5 corridor in the Sacramento Valley. Strongest winds are expected Sunday into Monday. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity. Outdoor burning is not recommended

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Friday, May 15, 2026

Weather Forecast

Sunny
76.1°F
39.4°F
59.8°F
37%
0 in
0%
0%
11.6 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 3.48 μg/m3
PM10: 4.87 μg/m3
Carbon Monoxide: 123.97 μg/m3
Nitrogen Dioxide: 2.32 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 86.12 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:07 PM
Sunset: 8:22 PM
Daylight: 14 hrs 28 mins
Moonrise: 4:44 AM
Moon Transit: 12:02 AM
Moonset: 7:35 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:28 PM - 9:58 PM
11:32 AM - 2:02 PM

Minor Periods

7:05 PM - 8:35 PM
4:14 AM - 5:44 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Sunny
71.5°F
30.7°F
50.3°F
55%
0 in
0%
0%
7.2 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 5.06 μg/m3
PM10: 7.33 μg/m3
Carbon Monoxide: 130.49 μg/m3
Nitrogen Dioxide: 1.68 μg/m3
Sulphur Dioxide: 1.44 μg/m3
Ozone: 84.2 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:07 PM
Sunset: 8:23 PM
Daylight: 14 hrs 30 mins
Moonrise: 5:20 AM
Moon Transit: 1:02 PM
Moonset: 8:58 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

8:30 PM - 11:00 PM
12:32 AM - 3:02 PM

Minor Periods

8:28 PM - 9:58 PM
4:50 AM - 6:20 AM

Action Rating: 6 out of 5

Sunday, May 17, 2026

Weather Forecast

Sunny
74.7°F
33.4°F
53.1°F
52%
0 in
0%
0%
5.4 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 3.27 μg/m3
PM10: 4.37 μg/m3
Carbon Monoxide: 126.57 μg/m3
Nitrogen Dioxide: 1.89 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 81.08 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:07 PM
Sunset: 8:24 PM
Daylight: 14 hrs 32 mins
Moonrise: 6:06 AM
Moon Transit: 2:07 PM
Moonset: 10:16 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:37 PM - 4:07 PM

Minor Periods

9:46 PM - 11:16 PM
5:36 AM - 7:06 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Sunny
80.8°F
37.8°F
58.5°F
44%
0 in
0%
0%
5.4 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 2.24 μg/m3
PM10: 2.75 μg/m3
Carbon Monoxide: 132.02 μg/m3
Nitrogen Dioxide: 2.61 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 82.96 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:07 PM
Sunset: 8:25 PM
Daylight: 14 hrs 34 mins
Moonrise: 7:04 AM
Moon Transit: 3:14 PM
Moonset: 11:23 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:44 PM - 5:14 PM

Minor Periods

12:00 AM - 12:00 AM
6:34 AM - 8:04 AM

Action Rating: 3 out of 5

Tuesday, May 19, 2026

Weather Forecast

Sunny
83.5°F
40.5°F
55.7°F
53%
0 in
0%
0%
4.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.01 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 140.71 μg/m3
Nitrogen Dioxide: 5.62 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 76.15 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:07 PM
Sunset: 8:26 PM
Daylight: 14 hrs 36 mins
Moonrise: 8:15 AM
Moon Transit: 4:20 PM
Moonset: 12:23 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:50 PM - 6:20 PM

Minor Periods

7:45 AM - 9:15 AM
12:00 AM - 12:00 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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