Water Temperature of the Trinity River in Lewiston, CA

Current Water Temperature

51.1°F

Measurement Time: Thursday, July 23, 2026, 7:00 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

61.3°F
Clear
Clear
61.3°F
67.5°F
55%
WNW 2.7 mph
5.6 mph
67.5°F
44.2°F
0 in
0%
9 mi
1017 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 95°F
L: 56°F
Sunny
Sat
H: 93°F
L: 46°F
Sunny
Sun
H: 93°F
L: 46°F
Sunny
Mon
H: 93°F
L: 45°F
Sunny
Tue
H: 94°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 5.2 μg/m3
PM10: 6.1 μg/m3
Carbon Monoxide: 100 μg/m3
Nitrogen Dioxide: 9.2 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:17 PM
Sunset: 8:35 PM
Daylight: 14 hrs 34 mins
Moonrise: 5:23 PM
Moon Transit: 9:45 PM
Moonset: 1:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
9:15 PM - 11:45 PM

Minor Periods

4:53 PM - 6:23 PM
12:55 AM - 2:25 AM

Action Rating: 2 out of 5

Red Flag Warning issued July 23 at 11:38AM PDT until July 24 at 8:00PM PDT by NWS Medford OR

Effective: Thu July 23, 2026, 11:38 AM
Expires: Thu July 23, 2026, 11:45 PM

The National Weather Service in Medford has issued a Red Flag Warning, which is in effect from 1 PM to 8 PM PDT Friday. The Fire Weather Watch is no longer in effect. * IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...Mostly the Shasta and Scott valleys of Fire Weather Zones 280 and 281, but also portions of the Klamath National Forest. * WINDS...Southwest to west 10 to 20 mph with gusts up to 40 mph. * MINIMUM HUMIDITY...10 to 15 percent. * DURATION...3 to 7 hours Friday afternoon. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr

Follow all fire restrictions. You can find your county's emergency sign up form as well as links to fire restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Be sure you're signed up for your county's emergency alert system. Familiarize yourself with your emergency plan and make sure you listen to emergency services. Visit ready.gov/plan for more information. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities.


Red Flag Warning issued July 23 at 11:38AM PDT until July 25 at 9:00PM PDT by NWS Medford OR

Effective: Thu July 23, 2026, 11:38 AM
Expires: Thu July 23, 2026, 11:45 PM

The National Weather Service in Medford has issued a Red Flag Warning, which is in effect from 1 PM Friday to 9 PM PDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In northern California in Fire Weather Zones 284 and 285, including the Klamath, Shasta and Modoc National Forests. In Oregon, nearly all areas east of the Cascades, including the Klamath Basin, Fremont-Winema National Forest and the south central Oregon Desert including BLM land in Fire Weather Zones 624 and 625. * WINDS...Southwest to west 10 to 20 mph with gusts up to 45 mph both Friday and Saturday afternoon and evening. * MINIMUM HUMIDITY...5 to 15 percent. * DURATION...3 to 8 hours Friday and Saturday afternoon and evening. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr * ADDITIONAL DETAILS...The fire weather threat will decrease overnight with increasing humidities and lighter winds.

Follow all fire restrictions. You can find your county's emergency sign up form as well as links to fire restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Be sure you're signed up for your county's emergency alert system. Familiarize yourself with your emergency plan and make sure you listen to emergency services. Visit ready.gov/plan for more information. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities.


Red Flag Warning issued July 23 at 10:49PM PDT until July 25 at 9:00PM PDT by NWS Medford OR

Effective: Thu July 23, 2026, 10:49 PM
Expires: Fri July 24, 2026, 3:00 PM

* AFFECTED AREA...In northern California in Fire Weather Zones 284 and 285, including the Klamath, Shasta and Modoc National Forests. In Oregon, nearly all areas east of the Cascades, including the Klamath Basin, Fremont-Winema National Forest and the south central Oregon Desert including BLM land in Fire Weather Zones 624 and 625. * WINDS...Southwest to west 10 to 20 mph with gusts up to 45 mph both Friday and Saturday afternoon and evening. * MINIMUM HUMIDITY...5 to 15 percent. * DURATION...3 to 8 hours Friday and Saturday afternoon and evening. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr * ADDITIONAL DETAILS...The fire weather threat will decrease overnight with increasing humidities and lighter winds.

Follow all fire restrictions. You can find your county's emergency sign up form as well as links to fire restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Be sure you're signed up for your county's emergency alert system. Familiarize yourself with your emergency plan and make sure you listen to emergency services. Visit ready.gov/plan for more information. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities.


Red Flag Warning issued July 23 at 10:49PM PDT until July 24 at 8:00PM PDT by NWS Medford OR

Effective: Thu July 23, 2026, 10:49 PM
Expires: Fri July 24, 2026, 3:00 PM

* IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...Mostly the Shasta and Scott valleys of Fire Weather Zones 280 and 281, but also portions of the Klamath National Forest. * WINDS...Southwest to west 10 to 20 mph with gusts up to 40 mph. * MINIMUM HUMIDITY...10 to 15 percent. * DURATION...3 to 7 hours Friday afternoon. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr

Follow all fire restrictions. You can find your county's emergency sign up form as well as links to fire restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Be sure you're signed up for your county's emergency alert system. Familiarize yourself with your emergency plan and make sure you listen to emergency services. Visit ready.gov/plan for more information. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities.


Friday, July 24, 2026

Weather Forecast

Sunny
94.6°F
56.2°F
76.3°F
31%
0 in
0%
0%
8.7 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 3.79 μg/m3
PM10: 4.44 μg/m3
Carbon Monoxide: 97.71 μg/m3
Nitrogen Dioxide: 3.78 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 96 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:17 PM
Sunset: 8:35 PM
Daylight: 14 hrs 34 mins
Moonrise: 5:23 PM
Moon Transit: 9:45 PM
Moonset: 1:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
9:15 PM - 11:45 PM

Minor Periods

4:53 PM - 6:23 PM
12:55 AM - 2:25 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
92.5°F
45.7°F
68.9°F
43%
0 in
1%
0%
10.5 mph
10.5


Air Quality

AQI: 1 - Good
PM2.5: 3.96 μg/m3
PM10: 4.77 μg/m3
Carbon Monoxide: 93.63 μg/m3
Nitrogen Dioxide: 2.88 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 72.79 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 1:17 PM
Sunset: 8:34 PM
Daylight: 14 hrs 32 mins
Moonrise: 6:19 PM
Moon Transit: 10:37 PM
Moonset: 2:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

5:09 AM - 7:39 AM
12:00 AM - 12:00 AM

Minor Periods

5:49 PM - 7:19 PM
1:37 AM - 3:07 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
93.4°F
46.3°F
69.1°F
43%
0 in
1%
0%
11.4 mph
10.3


Air Quality

AQI: 1 - Good
PM2.5: 4.51 μg/m3
PM10: 5.75 μg/m3
Carbon Monoxide: 91.42 μg/m3
Nitrogen Dioxide: 2.69 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 1:17 PM
Sunset: 8:33 PM
Daylight: 14 hrs 30 mins
Moonrise: 7:07 PM
Moon Transit: 11:28 PM
Moonset: 2:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
12:00 AM - 12:00 AM

Minor Periods

6:37 PM - 8:07 PM
2:26 AM - 3:56 AM

Action Rating: 4 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
93.1°F
45.4°F
69°F
41%
0 in
1%
0%
8.5 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 3.66 μg/m3
PM10: 4.71 μg/m3
Carbon Monoxide: 95.74 μg/m3
Nitrogen Dioxide: 2.69 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 77.5 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 1:17 PM
Sunset: 8:32 PM
Daylight: 14 hrs 28 mins
Moonrise: 7:48 PM
Moon Transit: 12:00 AM
Moonset: 3:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:52 AM - 9:22 AM

Minor Periods

7:18 PM - 8:48 PM
3:23 AM - 4:53 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
94.1°F
46.9°F
70°F
41%
0 in
1%
0%
7.8 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 4.7 μg/m3
PM10: 6.45 μg/m3
Carbon Monoxide: 103.83 μg/m3
Nitrogen Dioxide: 4.87 μg/m3
Sulphur Dioxide: 0.52 μg/m3
Ozone: 47.5 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:17 PM
Sunset: 8:31 PM
Daylight: 14 hrs 27 mins
Moonrise: 8:23 PM
Moon Transit: 12:19 AM
Moonset: 4:55 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:42 AM - 10:12 AM

Minor Periods

7:53 PM - 9:23 PM
4:25 AM - 5:55 AM

Action Rating: 4 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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