Water Temperature of Maxwell Creek in Saint Helena, CA

Current Water Temperature

57.6°F

Measurement Time: Wednesday, March 30, 2022, 6:00 AM PDT

Temperature Locations

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Local Points of Interest

Pope Valley, CA

Maxwell Creek

Station Name: MAXWELL C NR POPE VALLEY CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 551 feet

Nearest Address:
2458 Dollarhide Rd
Saint Helena, CA 94574
Napa County

GPS Coordinates: 38.61460278, -122.3459917

Nearby Water Temperatures

Pope Creek, Saint Helena, CA (2.5 mi)
Russian River, Jimtown, CA (26.3 mi)
Russian River, Healdsburg, CA (27.5 mi)
Mark West Creek, Forestville, CA (28.6 mi)
Cache Creek, Yolo, CA (30.1 mi)
Dry Creek, Healdsburg, CA (31.5 mi)
Russian River, Forestville, CA (32.3 mi)
Sacramento River, Meridian, CA (39.2 mi)
Carquinez Strait, Martinez, CA (41.8 mi)
Suisun Bay, Concord, CA (42 mi)
Russian River, Hopland, CA (42.3 mi)
Sacramento River Deep Water Ship Chennel, Rio Vista, CA (44.7 mi)
San Francisco Bay, San Rafael, CA (47.2 mi)
San Francisco Bay, Richmond, CA (47.5 mi)
Russian River, Hopland, CA (50.9 mi)

Weather for Saint Helena, California

Current Weather

35.1°F
Partly cloudy
Partly cloudy
33.2°F
37.1°F
92%
E 2.7 mph
5.6 mph
33°F
30.2°F
0 in
50%
9 mi
1019 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Sat
H: 56°F
L: 37°F
Overcast
Sun
H: 53°F
L: 43°F
Partly Cloudy
Mon
H: 64°F
L: 50°F
Heavy rain
Tue
H: 54°F
L: 52°F
Partly Cloudy
Wed
H: 67°F
L: 50°F

Air Quality

AQI: 1 - Good
PM2.5: 9.35 μg/m3
PM10: 12.45 μg/m3
Carbon Monoxide: 162.85 μg/m3
Nitrogen Dioxide: 4.75 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 91 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:22 AM
Sunset: 5:54 PM
Daylight: 11 hrs 2 mins
Moonrise: 8:50 AM
Moon Transit: 3:48 PM
Moonset: 10:59 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:18 PM - 5:48 PM

Minor Periods

10:29 PM - 11:59 PM
8:20 AM - 9:50 AM

Action Rating: 3 out of 5

Cold Weather Advisory issued February 20 at 12:00PM PST until February 21 at 9:00AM PST by NWS San Francisco CA

Effective: Fri February 20, 2026, 12:00 PM
Expires: Sat February 21, 2026, 4:00 AM

* WHAT...Cold conditions with temperatures as low as 33 expected. Slightly warmer conditions will be found across portions of the northern Salinas Valley and Carmel Valley where low temperatures range from 36 to 40 degrees. * WHERE...The Santa Clara Valley, North Bay Interior Valleys and Mountains, East Bay Interior Valleys, and Northern Salinas Valley and Hollister Valley. * WHEN...From 1 AM to 9 AM PST Saturday. * IMPACTS...Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Prolonged exposure to the cold conditions will lead to hypothermia for people, pets, and livestock. Cold conditions may damage or kill sensitive crops, plants, and vegetation if appropriate precautions are not taken.

Make frequent checks on older family, friends, and neighbors and ensure that they have adequate shelter and/or warmth. Check with your local, city, or county officials for information on available warming centers. Be sure to dress in layers if outdoors. Make sure that pets and livestock have adequate food, unfrozen water, and warmth. Cover or tend to sensitive crops, plants, and vegetation.


Cold Weather Advisory issued February 21 at 3:06AM PST until February 21 at 9:00AM PST by NWS San Francisco CA

Effective: Sat February 21, 2026, 3:06 AM
Expires: Sat February 21, 2026, 9:00 AM

* WHAT...Cold conditions with temperatures in the low-to-mid 30s expected. * WHERE...The East Bay Hills and Valleys, The Santa Clara Valley, North Bay Interior Mountains, North Bay Interior Valleys, and Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...Until 9 AM PST this morning. * IMPACTS...Cold conditions will be hazardous to sensitive populations such as unhoused individuals. Prolonged exposure to the cold conditions will lead to hypothermia for people, pets, and livestock. Cold conditions may damage or kill sensitive crops, plants, and vegetation if appropriate precautions are not taken.

Make frequent checks on older family, friends, and neighbors and ensure that they have adequate shelter and/or warmth. Check with your local, city, or county officials for information on available warming centers. Be sure to dress in layers if outdoors. Make sure that pets and livestock have adequate food, unfrozen water, and warmth. Cover or tend to sensitive crops, plants, and vegetation.


Saturday, February 21, 2026

Weather Forecast

Patchy rain nearby
56.1°F
36.9°F
45.2°F
77%
0.01 in
88%
0%
7.8 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 10.85 μg/m3
PM10: 13.22 μg/m3
Carbon Monoxide: 181.73 μg/m3
Nitrogen Dioxide: 18.03 μg/m3
Sulphur Dioxide: 4.98 μg/m3
Ozone: 52.24 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:22 AM
Sunset: 5:54 PM
Daylight: 11 hrs 2 mins
Moonrise: 8:50 AM
Moon Transit: 3:48 PM
Moonset: 10:59 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:18 PM - 5:48 PM

Minor Periods

10:29 PM - 11:59 PM
8:20 AM - 9:50 AM

Action Rating: 3 out of 5

Sunday, February 22, 2026

Weather Forecast

Overcast
53.2°F
43.3°F
48°F
88%
0 in
0%
0%
5.8 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 10.62 μg/m3
PM10: 14.61 μg/m3
Carbon Monoxide: 155.61 μg/m3
Nitrogen Dioxide: 9.55 μg/m3
Sulphur Dioxide: 3.23 μg/m3
Ozone: 73.44 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 12:22 AM
Sunset: 5:55 PM
Daylight: 11 hrs 4 mins
Moonrise: 9:20 AM
Moon Transit: 4:40 PM
Moonset: 12:14 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:10 PM - 6:40 PM

Minor Periods

12:00 AM - 12:00 AM
8:50 AM - 10:20 AM

Action Rating: 2 out of 5

Monday, February 23, 2026

Weather Forecast

Partly Cloudy
63.7°F
49.8°F
55.9°F
84%
0 in
0%
0%
4.9 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 12.12 μg/m3
PM10: 14.78 μg/m3
Carbon Monoxide: 143.29 μg/m3
Nitrogen Dioxide: 16.17 μg/m3
Sulphur Dioxide: 3.16 μg/m3
Ozone: 54.16 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 12:22 AM
Sunset: 5:56 PM
Daylight: 11 hrs 6 mins
Moonrise: 9:57 AM
Moon Transit: 5:37 PM
Moonset: 12:14 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
5:07 PM - 7:37 PM

Minor Periods

9:27 AM - 10:57 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, February 24, 2026

Weather Forecast

Heavy rain
53.7°F
51.6°F
53.2°F
97%
1.25 in
87%
0%
6.7 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 14.89 μg/m3
PM10: 16.62 μg/m3
Carbon Monoxide: 160.04 μg/m3
Nitrogen Dioxide: 26.11 μg/m3
Sulphur Dioxide: 4.89 μg/m3
Ozone: 42.84 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:22 AM
Sunset: 5:57 PM
Daylight: 11 hrs 9 mins
Moonrise: 10:43 AM
Moon Transit: 6:38 PM
Moonset: 1:28 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

1:08 AM - 3:38 AM
6:08 PM - 8:38 PM

Minor Periods

10:13 AM - 11:43 AM
12:58 AM - 2:28 AM

Action Rating: 3 out of 5

Wednesday, February 25, 2026

Weather Forecast

Partly Cloudy
66.8°F
50°F
56.7°F
85%
0 in
0%
0%
2.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.45 μg/m3
PM10: 2.65 μg/m3
Carbon Monoxide: 149.33 μg/m3
Nitrogen Dioxide: 9.28 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 39.62 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:22 AM
Sunset: 5:58 PM
Daylight: 11 hrs 11 mins
Moonrise: 11:39 AM
Moon Transit: 7:41 PM
Moonset: 2:39 AM
Moon Phase: First Quarter
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
7:11 PM - 9:41 PM

Minor Periods

11:09 AM - 12:39 AM
2:09 AM - 3:39 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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