Water Temperature of the Trinity River in Lewiston, CA

Current Water Temperature

46.8°F

Measurement Time: Monday, October 13, 2025, 4:15 PM PDT

Temperature Locations

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Local Points of Interest

Lewiston Dam

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Trinity River

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

Elevation Above Sea Level: 1,860 feet / 567 meters

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

48.4°F
Overcast
Conditions: Overcast
Humidity: 100%
Feels Like: 48.1°F
Wind: ENE 2.7 mph
Wind Gusts: 5.6 mph
Pressure: 29.74 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 8 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Mon
H: 50°F
L: 43°F
Partly Cloudy
Tue
H: 63°F
L: 38°F
Mist
Wed
H: 54°F
L: 42°F
Sunny
Thu
H: 69°F
L: 36°F
Sunny
Fri
H: 79°F
L: 43°F

Air Quality

AQI: 1 - Good
PM2.5: 2.45 μg/m3
PM10: 2.65 μg/m3
Carbon Monoxide: 137.85 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:57 AM
Sunset: 6:34 PM
Daylight: 11 hrs 13 mins
Moonrise: 12:11 PM
Moon Transit: 7:03 AM
Moonset: 2:59 PM
Moon Phase: Last Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

6:33 AM - 9:03 AM
2:30 PM - 5:00 PM

Minor Periods

12:00 AM - 12:00 AM
2:29 PM - 3:59 PM

Action Rating: 2 out of 5

Winter Storm Warning issued October 13 at 6:04AM PDT until October 15 at 5:00AM PDT by NWS Sacramento CA

Effective: Mon October 13, 2025, 6:04 AM
Expires: Mon October 13, 2025, 5:15 PM

* WHAT...Snow expected above 6500 feet. Total snow accumulations between 12 and 18 inches, up to 2 feet along the highest peaks. * WHERE...Western Plumas County/Lassen Park County. * WHEN...Until 5 AM PDT Wednesday. * IMPACTS...Plan for slippery road conditions. Hazardous road conditions are expected to impact the Monday and Tuesday commutes. * ADDITIONAL DETAILS...Snow levels will be 5500 to 6500 feet, decreasing after Monday night to 5000 to 6000 feet with heaviest snow accumulation expected Monday afternoon to late evening, highest in the Lassen Park Area. Snow accumulations may be affected by diurnal trends and sun angle.

Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1.


Winter Storm Warning issued October 13 at 1:22PM PDT until October 15 at 5:00AM PDT by NWS Sacramento CA

Effective: Mon October 13, 2025, 1:22 PM
Expires: Tue October 14, 2025, 4:00 PM

* WHAT...Snow expected above 6500 feet. Total snow accumulations between 4 and 8 inches. * WHERE...Western Plumas County/Lassen Park. * WHEN...Until 5 AM PDT Wednesday. * IMPACTS...Plan for slippery road conditions. Hazardous road conditions are expected to impact the Monday and Tuesday commutes. * ADDITIONAL DETAILS...Snow levels will be 5500 to 6500 feet, with heaviest snow accumulation expected this afternoon to late evening, highest in the Lassen Park Area. Snow accumulations may be affected by diurnal trends and sun angle.

Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1.
Monday, October 13, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 46.1°F
Average Humidity: 80%
Chance of Rain: 80%
Wind: 4.7 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 3.02 μg/m3
PM10: 3.43 μg/m3
Carbon Monoxide: 134.05 μg/m3
Nitrogen Dioxide: 3.03 μg/m3
Sulphur Dioxide: 2.23 μg/m3
Ozone: 75.36 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:57 AM
Sunset: 6:34 PM
Daylight: 11 hrs 13 mins
Moonrise: 12:11 PM
Moon Transit: 7:03 AM
Moonset: 2:59 PM
Moon Phase: Last Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

6:33 AM - 9:03 AM
2:30 PM - 5:00 PM

Minor Periods

12:00 AM - 12:00 AM
2:29 PM - 3:59 PM

Action Rating: 2 out of 5

Tuesday, October 14, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 49.1°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 3.8 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 2.21 μg/m3
PM10: 2.53 μg/m3
Carbon Monoxide: 139.45 μg/m3
Nitrogen Dioxide: 4.32 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 75.8 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:57 AM
Sunset: 6:32 PM
Daylight: 11 hrs 10 mins
Moonrise: 12:11 AM
Moon Transit: 8:00 AM
Moonset: 3:36 PM
Moon Phase: Last Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

7:30 AM - 10:00 AM
3:24 PM - 5:54 PM

Minor Periods

3:06 PM - 4:36 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, October 15, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 46.8°F
Average Humidity: 91%
Chance of Rain: 0%
Wind: 4.3 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 4.46 μg/m3
PM10: 5 μg/m3
Carbon Monoxide: 158.37 μg/m3
Nitrogen Dioxide: 3.61 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 71.56 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:56 AM
Sunset: 6:30 PM
Daylight: 11 hrs 8 mins
Moonrise: 1:23 AM
Moon Transit: 8:50 AM
Moonset: 4:06 PM
Moon Phase: Last Quarter
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

8:20 AM - 10:50 AM
4:13 PM - 6:43 PM

Minor Periods

3:36 PM - 5:06 PM
12:53 AM - 2:23 AM

Action Rating: 3 out of 5

Thursday, October 16, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 52.8°F
Average Humidity: 55%
Chance of Rain: 0%
Wind: 3.8 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 3.82 μg/m3
PM10: 4.19 μg/m3
Carbon Monoxide: 154.93 μg/m3
Nitrogen Dioxide: 5.05 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 76.12 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:56 AM
Sunset: 6:29 PM
Daylight: 11 hrs 5 mins
Moonrise: 2:32 AM
Moon Transit: 9:37 AM
Moonset: 4:30 PM
Moon Phase: Last Quarter
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

4:58 PM - 7:28 PM
9:07 AM - 11:37 AM

Minor Periods

4:00 PM - 5:30 PM
2:02 AM - 3:32 AM

Action Rating: 2 out of 5

Friday, October 17, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 56.8°F
Average Humidity: 49%
Chance of Rain: 0%
Wind: 3.4 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 2.87 μg/m3
PM10: 3.03 μg/m3
Carbon Monoxide: 163.54 μg/m3
Nitrogen Dioxide: 7.13 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 68.54 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:56 AM
Sunset: 6:27 PM
Daylight: 11 hrs 3 mins
Moonrise: 3:38 AM
Moon Transit: 10:20 AM
Moonset: 4:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

5:41 PM - 8:11 PM
9:50 AM - 12:20 AM

Minor Periods

4:21 PM - 5:51 PM
3:08 AM - 4:38 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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