Water Temperature of Trinity River in Helena, CA

Current Water Temperature

41.0°F

Measurement Time: Wednesday, February 18, 2026, 1:45 AM PST

Temperature Locations

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Local Points of Interest

Junction City, CA; Shasta Trinity National Forest

Trinity River

Station Name: TRINITY R AB NF TRINITY R NR HELENA CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,404 feet

Nearest Address:
State Rte 299
Helena, CA 96052
Trinity County

GPS Coordinates: 40.76653148, -123.1144757

Nearby Water Temperatures

Trinity River, Douglas City, CA (11.8 mi)
Trinity River, Lewiston, CA (16.7 mi)
Trinity River, Hoopa, CA (35.2 mi)
Klamath River, Orleans, CA (43.1 mi)
Humboldt Bay, Eureka, CA (57.7 mi)
Pacific Ocean, Manila, CA (65.6 mi)
Klamath River, Klamath, CA (68.3 mi)
Pacific Ocean, Eureka, CA (73.9 mi)
Mill Creek, Los Milinos, CA (75.6 mi)
Elder Creek, Branscomb, CA (76.9 mi)
Deer Creek, Vina, CA (80.4 mi)
Crescent Harbor, Crescent City, CA (87.5 mi)
Hat Creek, Old Station, CA (88.7 mi)
Pacific Ocean, Petrolia, CA (91 mi)
Butte Creek, Chico, CA (103.3 mi)

Weather for Helena, California

Current Weather

34°F
Partly cloudy
Partly cloudy
32.7°F
28.6°F
86%
W 2.2 mph
2.6 mph
27.4°F
26.3°F
0.01 in
75%
9 mi
1010 mbar
1.6

Five Day Weather Forecast

Moderate or heavy snow showers
Wed
H: 37°F
L: 23°F
Moderate or heavy snow showers
Thu
H: 34°F
L: 8°F
Overcast
Fri
H: 30°F
L: 17°F
Moderate or heavy snow showers
Sat
H: 36°F
L: 27°F
Heavy snow
Sun
H: 36°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 5.05 μg/m3
Carbon Monoxide: 169.85 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 88 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:26 AM
Sunset: 5:51 PM
Daylight: 10 hrs 49 mins
Moonrise: 7:39 AM
Moon Transit: 1:29 PM
Moonset: 7:31 PM
Moon Phase: New
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

7:01 PM - 8:31 PM
7:09 AM - 8:39 AM

Action Rating: 4 out of 5

Special Weather Statement issued February 18 at 4:20AM PST by NWS Eureka CA

Effective: Wed February 18, 2026, 4:20 AM
Expires: Wed February 18, 2026, 4:45 AM

At 420 AM PST, Doppler radar was tracking a shower 10 miles northwest of Fortuna, or 10 miles southwest of Eureka, moving southeast at 35 mph. HAZARD...Accumulating small hail over roadways and hazardous conditions to motorists. Wind gusts up to 30 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Hazardous conditions to motorists. Locations impacted include... Fortuna, Loleta and Fernbridge.

Monitor the weather situation closely and be alert for threatening weather conditions.
Wednesday, February 18, 2026

Weather Forecast

Moderate or heavy snow showers
37°F
22.6°F
28.9°F
76%
0.09 in
72%
24%
4.3 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 1.82 μg/m3
PM10: 2.32 μg/m3
Carbon Monoxide: 161.01 μg/m3
Nitrogen Dioxide: 1.85 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:26 AM
Sunset: 5:51 PM
Daylight: 10 hrs 49 mins
Moonrise: 7:39 AM
Moon Transit: 1:29 PM
Moonset: 7:31 PM
Moon Phase: New
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

7:01 PM - 8:31 PM
7:09 AM - 8:39 AM

Action Rating: 4 out of 5

Thursday, February 19, 2026

Weather Forecast

Moderate or heavy snow showers
33.6°F
8.2°F
29°F
87%
0.21 in
73%
6%
6.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 2.78 μg/m3
PM10: 3.58 μg/m3
Carbon Monoxide: 163.33 μg/m3
Nitrogen Dioxide: 2.63 μg/m3
Sulphur Dioxide: 2.69 μg/m3
Ozone: 84.56 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:26 AM
Sunset: 5:52 PM
Daylight: 10 hrs 51 mins
Moonrise: 8:02 AM
Moon Transit: 1:07 PM
Moonset: 8:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 PM
12:37 AM - 3:07 PM

Minor Periods

8:11 PM - 9:41 PM
7:32 AM - 9:02 AM

Action Rating: 2 out of 5

Friday, February 20, 2026

Weather Forecast

Overcast
29.5°F
17.2°F
24.6°F
93%
0 in
0%
0%
4.7 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.93 μg/m3
PM10: 2.36 μg/m3
Carbon Monoxide: 160.73 μg/m3
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 2.13 μg/m3
Ozone: 85.16 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:26 AM
Sunset: 5:53 PM
Daylight: 10 hrs 54 mins
Moonrise: 8:25 AM
Moon Transit: 3:02 PM
Moonset: 9:53 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:32 PM - 5:02 PM

Minor Periods

9:23 PM - 10:53 PM
7:55 AM - 9:25 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Moderate or heavy snow showers
36.4°F
27.1°F
32.2°F
94%
0.19 in
89%
24%
7.6 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 4.41 μg/m3
PM10: 5.77 μg/m3
Carbon Monoxide: 173.03 μg/m3
Nitrogen Dioxide: 2.91 μg/m3
Sulphur Dioxide: 2.04 μg/m3
Ozone: 83.6 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:26 AM
Sunset: 5:55 PM
Daylight: 10 hrs 57 mins
Moonrise: 8:49 AM
Moon Transit: 3:51 PM
Moonset: 11:07 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:21 PM - 5:51 PM

Minor Periods

12:00 AM - 12:00 AM
8:19 AM - 9:49 AM

Action Rating: 3 out of 5

Sunday, February 22, 2026

Weather Forecast

Heavy snow
35.5°F
28.9°F
33°F
100%
2.13 in
83%
29%
8.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 7 μg/m3
PM10: 9.96 μg/m3
Carbon Monoxide: 185.21 μg/m3
Nitrogen Dioxide: 3.9 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 86.85 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:25 AM
Sunset: 5:56 PM
Daylight: 10 hrs 59 mins
Moonrise: 9:18 AM
Moon Transit: 4:44 PM
Moonset: 12:07 AM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:14 PM - 6:44 PM

Minor Periods

8:48 AM - 10:18 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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