Water Temperature of the Trinity River in Lewiston, CA

Current Water Temperature

49.3°F

Measurement Time: Thursday, April 16, 2026, 5:30 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

52.2°F
Sunny
Sunny
52.8°F
52.3°F
32%
ENE 2.2 mph
6.7 mph
51.9°F
30°F
0 in
0%
9 mi
1022 mbar
5.8

Five Day Weather Forecast

Sunny
Thu
H: 59°F
L: 34°F
Cloudy
Fri
H: 64°F
L: 35°F
Partly Cloudy
Sat
H: 66°F
L: 41°F
Overcast
Sun
H: 64°F
L: 44°F
Patchy rain nearby
Mon
H: 65°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 2.35 μg/m3
PM10: 3.35 μg/m3
Carbon Monoxide: 161.85 μg/m3
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 106 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:10 PM
Sunset: 7:52 PM
Daylight: 13 hrs 21 mins
Moonrise: 5:50 AM
Moon Transit: 12:30 AM
Moonset: 7:25 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

7:54 PM - 10:24 PM
12:00 AM - 2:30 PM

Minor Periods

6:55 PM - 8:25 PM
5:20 AM - 6:50 AM

Action Rating: 5 out of 5

Freeze Warning issued April 15 at 9:55PM PDT until April 16 at 9:00AM PDT by NWS Eureka CA

Effective: Wed April 15, 2026, 9:55 PM
Expires: Thu April 16, 2026, 6:00 AM

* WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Trinity County, Lake County, Humboldt Interior, Northern Mendocino Interior, Del Norte Interior, and Southeastern Mendocino Interior. * WHEN...Until 9 AM PDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.


Freeze Warning issued April 16 at 3:08AM PDT until April 16 at 9:00AM PDT by NWS Eureka CA

Effective: Thu April 16, 2026, 3:08 AM
Expires: Thu April 16, 2026, 9:00 AM

* WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Trinity County, Lake County, Humboldt Interior, Northern Mendocino Interior, and Del Norte Interior. * WHEN...For the first Freeze Warning, until 9 AM PDT this morning. For the second Freeze Warning, from midnight tonight to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.


Freeze Warning issued April 16 at 3:08AM PDT until April 17 at 9:00AM PDT by NWS Eureka CA

Effective: Thu April 16, 2026, 3:08 AM
Expires: Thu April 16, 2026, 9:00 AM

* WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Trinity County, Lake County, Humboldt Interior, Northern Mendocino Interior, and Del Norte Interior. * WHEN...For the first Freeze Warning, until 9 AM PDT this morning. For the second Freeze Warning, from midnight tonight to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.


Freeze Warning issued April 16 at 8:38AM PDT until April 17 at 9:00AM PDT by NWS Eureka CA

Effective: Thu April 16, 2026, 8:38 AM
Expires: Thu April 16, 2026, 4:45 PM

* WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Trinity County, Lake County, Humboldt Interior, Northern Mendocino Interior, and Del Norte Interior. * WHEN...From midnight tonight to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.


Wind Advisory issued April 15 at 11:54AM PDT until April 16 at 11:00PM PDT by NWS Sacramento CA

Effective: Wed April 15, 2026, 11:54 AM
Expires: Thu April 16, 2026, 4:00 PM

* WHAT...North winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Sacramento Valley and Carquinez Strait and Delta. * WHEN...From 5 AM to 11 PM PDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and weakened tree limbs could be blown down.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.


Thursday, April 16, 2026

Weather Forecast

Sunny
59.2°F
33.6°F
45.1°F
47%
0 in
0%
0%
6 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 2.04 μg/m3
PM10: 2.59 μg/m3
Carbon Monoxide: 162.13 μg/m3
Nitrogen Dioxide: 1.94 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 91.8 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:10 PM
Sunset: 7:52 PM
Daylight: 13 hrs 21 mins
Moonrise: 5:50 AM
Moon Transit: 12:30 AM
Moonset: 7:25 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

7:54 PM - 10:24 PM
12:00 AM - 2:30 PM

Minor Periods

6:55 PM - 8:25 PM
5:20 AM - 6:50 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Cloudy
63.9°F
34.7°F
48°F
30%
0 in
0%
0%
3.6 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 2.62 μg/m3
PM10: 3.91 μg/m3
Carbon Monoxide: 159.33 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 100.64 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 1:10 PM
Sunset: 7:53 PM
Daylight: 13 hrs 24 mins
Moonrise: 6:17 AM
Moon Transit: 1:23 PM
Moonset: 8:45 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

8:48 PM - 11:18 PM
12:53 AM - 3:23 PM

Minor Periods

8:15 PM - 9:45 PM
5:47 AM - 7:17 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Partly Cloudy
65.5°F
41°F
52.7°F
42%
0 in
0%
0%
6.7 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 3.35 μg/m3
PM10: 5.99 μg/m3
Carbon Monoxide: 165.85 μg/m3
Nitrogen Dioxide: 5.6 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 86.24 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:10 PM
Sunset: 7:54 PM
Daylight: 13 hrs 26 mins
Moonrise: 6:49 AM
Moon Transit: 2:20 PM
Moonset: 10:05 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:50 PM - 4:20 PM

Minor Periods

9:35 PM - 11:05 PM
6:19 AM - 7:49 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Overcast
63.6°F
43.8°F
53.3°F
56%
0 in
0%
0%
7.4 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 5.16 μg/m3
PM10: 7.97 μg/m3
Carbon Monoxide: 160.35 μg/m3
Nitrogen Dioxide: 4.87 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 92.16 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

Patchy rain nearby
65°F
40.7°F
50.8°F
58%
0.01 in
84%
0%
8.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.35 μg/m3
PM10: 2.91 μg/m3
Carbon Monoxide: 144.81 μg/m3
Nitrogen Dioxide: 2.87 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 66 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

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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