Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

59.4°F

Measurement Time: Wednesday, September 30, 2026, 7:30 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

54°F
Rain Showers Likely
Rain Showers Likely
83%
W 10 mph
49°F

Weather Forecast

Rain Showers Likely
Overnight
50°F - Rain Showers Likely
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Thursday
68°F - Chance Rain Showers then Slight Chance Showers And Thunderstorms
Mostly Clear
Thursday Night
44°F - Mostly Clear
Sunny
Friday
71°F - Sunny
Mostly Clear
Friday Night
47°F - Mostly Clear
Sunny
Saturday
81°F - Sunny
Mostly Clear
Saturday Night
51°F - Mostly Clear
Sunny
Sunday
74°F - Sunny
Mostly Clear
Sunday Night
50°F - Mostly Clear
Sunny
Monday
81°F - Sunny
Partly Cloudy
Monday Night
54°F - Partly Cloudy
Mostly Sunny
Tuesday
82°F - Mostly Sunny
Partly Cloudy
Tuesday Night
53°F - Partly Cloudy
Sunny
Wednesday
79°F - Sunny

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:49 AM
Sunset: 6:43 PM
Daylight: 11 hrs 47 mins
Moonrise: 9:55 PM
Moon Transit: 4:51 AM
Moonset: 12:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:21 AM - 6:51 AM
2:46 PM - 5:16 PM

Minor Periods

9:25 PM - 10:55 PM
12:18 AM - 1:48 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:56 AM
Sun Transit: 12:49 AM
Sunset: 6:43 PM
Daylight: 11 hrs 47 mins
Moonrise: 9:55 PM
Moon Transit: 4:51 AM
Moonset: 12:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:21 AM - 6:51 AM
2:46 PM - 5:16 PM

Minor Periods

9:25 PM - 10:55 PM
12:18 AM - 1:48 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:56 AM
Sun Transit: 12:49 AM
Sunset: 6:43 PM
Daylight: 11 hrs 47 mins
Moonrise: 9:55 PM
Moon Transit: 4:51 AM
Moonset: 12:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:21 AM - 6:51 AM
2:46 PM - 5:16 PM

Minor Periods

9:25 PM - 10:55 PM
12:18 AM - 1:48 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:56 AM
Sun Transit: 12:49 AM
Sunset: 6:43 PM
Daylight: 11 hrs 47 mins
Moonrise: 9:55 PM
Moon Transit: 4:51 AM
Moonset: 12:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:21 AM - 6:51 AM
2:46 PM - 5:16 PM

Minor Periods

9:25 PM - 10:55 PM
12:18 AM - 1:48 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:57 AM
Sun Transit: 12:49 AM
Sunset: 6:41 PM
Daylight: 11 hrs 44 mins
Moonrise: 11:00 PM
Moon Transit: 5:53 AM
Moonset: 1:52 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:23 AM - 7:53 AM
3:49 PM - 6:19 PM

Minor Periods

10:30 PM - 12:00 PM
1:22 PM - 2:52 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:57 AM
Sun Transit: 12:49 AM
Sunset: 6:41 PM
Daylight: 11 hrs 44 mins
Moonrise: 11:00 PM
Moon Transit: 5:53 AM
Moonset: 1:52 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:23 AM - 7:53 AM
3:49 PM - 6:19 PM

Minor Periods

10:30 PM - 12:00 PM
1:22 PM - 2:52 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:58 AM
Sun Transit: 12:49 AM
Sunset: 6:40 PM
Daylight: 11 hrs 42 mins
Moonrise: 12:11 PM
Moon Transit: 6:56 AM
Moonset: 2:47 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:26 AM - 8:56 AM
4:51 PM - 7:21 PM

Minor Periods

12:00 AM - 12:00 AM
2:17 PM - 3:47 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:58 AM
Sun Transit: 12:49 AM
Sunset: 6:40 PM
Daylight: 11 hrs 42 mins
Moonrise: 12:11 PM
Moon Transit: 6:56 AM
Moonset: 2:47 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:26 AM - 8:56 AM
4:51 PM - 7:21 PM

Minor Periods

12:00 AM - 12:00 AM
2:17 PM - 3:47 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:59 AM
Sun Transit: 12:48 AM
Sunset: 6:38 PM
Daylight: 11 hrs 40 mins
Moonrise: 12:11 AM
Moon Transit: 7:55 AM
Moonset: 3:30 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:25 AM - 9:55 AM
5:49 PM - 8:19 PM

Minor Periods

3:00 PM - 4:30 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:59 AM
Sun Transit: 12:48 AM
Sunset: 6:38 PM
Daylight: 11 hrs 40 mins
Moonrise: 12:11 AM
Moon Transit: 7:55 AM
Moonset: 3:30 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:25 AM - 9:55 AM
5:49 PM - 8:19 PM

Minor Periods

3:00 PM - 4:30 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:00 AM
Sun Transit: 12:48 AM
Sunset: 6:37 PM
Daylight: 11 hrs 37 mins
Moonrise: 1:25 AM
Moon Transit: 8:51 AM
Moonset: 4:06 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:21 AM - 10:51 AM
6:43 PM - 9:13 PM

Minor Periods

3:36 PM - 5:06 PM
12:55 AM - 2:25 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:00 AM
Sun Transit: 12:48 AM
Sunset: 6:37 PM
Daylight: 11 hrs 37 mins
Moonrise: 1:25 AM
Moon Transit: 8:51 AM
Moonset: 4:06 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:21 AM - 10:51 AM
6:43 PM - 9:13 PM

Minor Periods

3:36 PM - 5:06 PM
12:55 AM - 2:25 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:01 AM
Sun Transit: 12:48 AM
Sunset: 6:35 PM
Daylight: 11 hrs 35 mins
Moonrise: 2:38 AM
Moon Transit: 9:43 AM
Moonset: 4:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

7:33 PM - 10:03 PM
9:13 AM - 11:43 AM

Minor Periods

4:07 PM - 5:37 PM
2:08 AM - 3:38 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:01 AM
Sun Transit: 12:48 AM
Sunset: 6:35 PM
Daylight: 11 hrs 35 mins
Moonrise: 2:38 AM
Moon Transit: 9:43 AM
Moonset: 4:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

7:33 PM - 10:03 PM
9:13 AM - 11:43 AM

Minor Periods

4:07 PM - 5:37 PM
2:08 AM - 3:38 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:02 AM
Sun Transit: 12:47 AM
Sunset: 6:34 PM
Daylight: 11 hrs 32 mins
Moonrise: 3:48 AM
Moon Transit: 10:31 AM
Moonset: 5:03 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

8:20 PM - 10:50 PM
10:01 AM - 12:31 AM

Minor Periods

4:33 PM - 6:03 PM
3:18 AM - 4:48 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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