Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

65.1°F

Measurement Time: Monday, September 14, 2026, 11:30 PM MDT

Temperature Locations

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Local Points of Interest

Florence, CO; Penrose, CO

Arkansas River

Station Name: ARKANSAS RIVER AT PORTLAND, CO.
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 5,043 feet

Nearest Address:
State Hwy 120
Portland, CO 81226
Fremont County

GPS Coordinates: 38.38833418, -105.0160961

Nearby Water Temperatures

Arkansas River, Cañon City, CO (13.4 mi)
Fountain Creek, Pueblo, CO (23.5 mi)
Fountain Creek, Fountain, CO (23.8 mi)
Arkansas River, Pueblo, CO (24.1 mi)
Arkansas River, Pueblo, CO (24.3 mi)
Arkansas River, Avondale, CO (34.8 mi)
Arkansas River, Manzanola, CO (62.6 mi)
South Platte River, Roxborough Park, CO (71.4 mi)
Arkansas River, Rocky Ford, CO (75.6 mi)
Arkansas River, Granite, CO (81.1 mi)
South Platte River, Englewood, CO (88.2 mi)
Halfmoon Creek, Twin Lakes, CO (91.7 mi)
Purgatoire River, Trinchera, CO (93.7 mi)
Purgatoire River, Kim, CO (94 mi)
South Platte River, Denver, CO (98.4 mi)

Weather for Portland, Colorado

Current Weather

59°F

Conditions: Mostly Sunny

Humidity: 55%

Wind: NNW 5 mph

Dew Point: 43°F

Weather Forecast

Today
76°F - Partly Sunny then Slight Chance Showers And Thunderstorms

Tonight
53°F - Slight Chance Showers And Thunderstorms then Mostly Cloudy

Wednesday
81°F - Partly Sunny then Chance Showers And Thunderstorms

Wednesday Night
58°F - Showers And Thunderstorms Likely

Thursday
80°F - Showers And Thunderstorms Likely

Thursday Night
56°F - Slight Chance Showers And Thunderstorms then Mostly Cloudy

Friday
83°F - Partly Sunny then Slight Chance Showers And Thunderstorms

Friday Night
56°F - Chance Showers And Thunderstorms then Partly Cloudy

Saturday
79°F - Mostly Sunny then Chance Showers And Thunderstorms

Saturday Night
52°F - Showers And Thunderstorms Likely

Sunday
75°F - Chance Rain Showers then Chance Showers And Thunderstorms

Sunday Night
50°F - Chance Showers And Thunderstorms

Monday
76°F - Mostly Sunny then Chance Showers And Thunderstorms

Monday Night
50°F - Chance Showers And Thunderstorms then Partly Cloudy

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:55 AM
Sunset: 7:08 PM
Daylight: 12 hrs 26 mins

Moonrise: 11:34 AM
Moon Transit: 4:27 PM
Moonset: 9:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

1:30 AM - 4:00 AM
3:57 PM - 6:27 PM

Minor Periods

8:45 PM - 10:15 PM
11:04 AM - 12:34 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:55 AM
Sunset: 7:08 PM
Daylight: 12 hrs 26 mins

Moonrise: 11:34 AM
Moon Transit: 4:27 PM
Moonset: 9:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

1:30 AM - 4:00 AM
3:57 PM - 6:27 PM

Minor Periods

8:45 PM - 10:15 PM
11:04 AM - 12:34 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:55 AM
Sunset: 7:08 PM
Daylight: 12 hrs 26 mins

Moonrise: 11:34 AM
Moon Transit: 4:27 PM
Moonset: 9:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

1:30 AM - 4:00 AM
3:57 PM - 6:27 PM

Minor Periods

8:45 PM - 10:15 PM
11:04 AM - 12:34 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 12:54 AM
Sunset: 7:06 PM
Daylight: 12 hrs 23 mins

Moonrise: 12:37 AM
Moon Transit: 5:17 PM
Moonset: 9:53 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

2:17 AM - 4:47 AM
4:47 PM - 7:17 PM

Minor Periods

9:23 PM - 10:53 PM
12:07 AM - 1:37 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 12:54 AM
Sunset: 7:06 PM
Daylight: 12 hrs 23 mins

Moonrise: 12:37 AM
Moon Transit: 5:17 PM
Moonset: 9:53 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

2:17 AM - 4:47 AM
4:47 PM - 7:17 PM

Minor Periods

9:23 PM - 10:53 PM
12:07 AM - 1:37 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 12:54 AM
Sunset: 7:05 PM
Daylight: 12 hrs 21 mins

Moonrise: 1:36 PM
Moon Transit: 6:07 PM
Moonset: 10:38 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

3:07 AM - 5:37 AM
5:37 PM - 8:07 PM

Minor Periods

10:08 PM - 11:38 PM
1:06 PM - 2:36 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 12:54 AM
Sunset: 7:05 PM
Daylight: 12 hrs 21 mins

Moonrise: 1:36 PM
Moon Transit: 6:07 PM
Moonset: 10:38 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

3:07 AM - 5:37 AM
5:37 PM - 8:07 PM

Minor Periods

10:08 PM - 11:38 PM
1:06 PM - 2:36 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 12:54 AM
Sunset: 7:03 PM
Daylight: 12 hrs 18 mins

Moonrise: 2:31 PM
Moon Transit: 7:00 PM
Moonset: 11:28 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

3:59 AM - 6:29 AM
6:30 PM - 9:00 PM

Minor Periods

12:00 AM - 12:00 AM
2:01 PM - 3:31 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 12:54 AM
Sunset: 7:03 PM
Daylight: 12 hrs 18 mins

Moonrise: 2:31 PM
Moon Transit: 7:00 PM
Moonset: 11:28 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

3:59 AM - 6:29 AM
6:30 PM - 9:00 PM

Minor Periods

12:00 AM - 12:00 AM
2:01 PM - 3:31 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:53 AM
Sunset: 7:02 PM
Daylight: 12 hrs 16 mins

Moonrise: 3:18 PM
Moon Transit: 7:50 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

4:50 AM - 7:20 AM
7:20 PM - 9:50 PM

Minor Periods

2:48 PM - 4:18 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:53 AM
Sunset: 7:02 PM
Daylight: 12 hrs 16 mins

Moonrise: 3:18 PM
Moon Transit: 7:50 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

4:50 AM - 7:20 AM
7:20 PM - 9:50 PM

Minor Periods

2:48 PM - 4:18 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:53 AM
Sunset: 7:00 PM
Daylight: 12 hrs 14 mins

Moonrise: 3:59 PM
Moon Transit: 8:40 PM
Moonset: 12:26 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

5:41 AM - 8:11 AM
8:10 PM - 10:40 PM

Minor Periods

3:29 PM - 4:59 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:53 AM
Sunset: 7:00 PM
Daylight: 12 hrs 14 mins

Moonrise: 3:59 PM
Moon Transit: 8:40 PM
Moonset: 12:26 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

5:41 AM - 8:11 AM
8:10 PM - 10:40 PM

Minor Periods

3:29 PM - 4:59 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:53 AM
Sunset: 6:58 PM
Daylight: 12 hrs 11 mins

Moonrise: 4:34 PM
Moon Transit: 9:28 PM
Moonset: 1:26 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
8:58 PM - 11:28 PM

Minor Periods

4:04 PM - 5:34 PM
12:56 AM - 2:26 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

Air Quality

AQI: 0 -

PM2.5: 0 μg/m3

PM10: 0 μg/m3

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:53 AM
Sunset: 6:58 PM
Daylight: 12 hrs 11 mins

Moonrise: 4:34 PM
Moon Transit: 9:28 PM
Moonset: 1:26 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
8:58 PM - 11:28 PM

Minor Periods

4:04 PM - 5:34 PM
12:56 AM - 2:26 AM

Action Rating: 3 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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