Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

70.7°F

Measurement Time: Saturday, September 19, 2026, 1:30 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

71°F
Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms
34%
N 5 mph
41°F

Weather Forecast

Slight Chance Showers And Thunderstorms then Mostly Clear
Tonight
52°F - Slight Chance Showers And Thunderstorms then Mostly Clear
Sunny then Slight Chance Showers And Thunderstorms
Sunday
79°F - Sunny then Slight Chance Showers And Thunderstorms
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Sunday Night
52°F - Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Slight Chance Rain Showers then Mostly Sunny
Monday
74°F - Slight Chance Rain Showers then Mostly Sunny
Chance Showers And Thunderstorms
Monday Night
52°F - Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And Thunderstorms
Tuesday
75°F - Mostly Sunny then Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Mostly Cloudy
Tuesday Night
54°F - Slight Chance Showers And Thunderstorms then Mostly Cloudy
Partly Sunny
Wednesday
78°F - Partly Sunny
Slight Chance Showers And Thunderstorms then Mostly Cloudy
Wednesday Night
55°F - Slight Chance Showers And Thunderstorms then Mostly Cloudy
Mostly Sunny then Slight Chance Showers And Thunderstorms
Thursday
79°F - Mostly Sunny then Slight Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Thursday Night
56°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Friday
76°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Friday Night
55°F - Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And Thunderstorms
Saturday
81°F - Sunny then Slight Chance Showers And Thunderstorms

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

°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: 6:46 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

°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: 6:46 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

°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: 6:46 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

°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: 6:47 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

°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: 6:47 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

°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: 6:48 AM
Sun Transit: 12:52 AM
Sunset: 6:57 PM
Daylight: 12 hrs 9 mins
Moonrise: 5:04 PM
Moon Transit: 10:14 PM
Moonset: 2:29 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
12:00 AM - 12:00 AM

Minor Periods

4:34 PM - 6:04 PM
1:59 AM - 3:29 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: 6:48 AM
Sun Transit: 12:52 AM
Sunset: 6:57 PM
Daylight: 12 hrs 9 mins
Moonrise: 5:04 PM
Moon Transit: 10:14 PM
Moonset: 2:29 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
12:00 AM - 12:00 AM

Minor Periods

4:34 PM - 6:04 PM
1:59 AM - 3:29 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: 6:49 AM
Sun Transit: 12:52 AM
Sunset: 6:55 PM
Daylight: 12 hrs 6 mins
Moonrise: 5:30 PM
Moon Transit: 11:00 PM
Moonset: 3:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
12:00 AM - 12:00 AM

Minor Periods

5:00 PM - 6:30 PM
3:03 AM - 4:33 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: 6:49 AM
Sun Transit: 12:52 AM
Sunset: 6:55 PM
Daylight: 12 hrs 6 mins
Moonrise: 5:30 PM
Moon Transit: 11:00 PM
Moonset: 3:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
12:00 AM - 12:00 AM

Minor Periods

5:00 PM - 6:30 PM
3:03 AM - 4:33 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: 6:50 AM
Sun Transit: 12:51 AM
Sunset: 6:54 PM
Daylight: 12 hrs 4 mins
Moonrise: 5:54 PM
Moon Transit: 11:43 PM
Moonset: 4:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

8:47 AM - 11:17 AM
12:00 AM - 12:00 AM

Minor Periods

5:24 PM - 6:54 PM
4:07 AM - 5:37 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: 6:50 AM
Sun Transit: 12:51 AM
Sunset: 6:54 PM
Daylight: 12 hrs 4 mins
Moonrise: 5:54 PM
Moon Transit: 11:43 PM
Moonset: 4:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

8:47 AM - 11:17 AM
12:00 AM - 12:00 AM

Minor Periods

5:24 PM - 6:54 PM
4:07 AM - 5:37 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: 6:51 AM
Sun Transit: 12:51 AM
Sunset: 6:52 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:18 PM
Moon Transit: 12:00 AM
Moonset: 5:42 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:48 PM - 7:18 PM
5:12 AM - 6:42 AM

Action Rating: 5 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: 6:51 AM
Sun Transit: 12:51 AM
Sunset: 6:52 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:18 PM
Moon Transit: 12:00 AM
Moonset: 5:42 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:48 PM - 7:18 PM
5:12 AM - 6:42 AM

Action Rating: 5 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: 6:52 AM
Sun Transit: 12:51 AM
Sunset: 6:51 PM
Daylight: 11 hrs 59 mins
Moonrise: 6:42 PM
Moon Transit: 6:33 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

6:03 AM - 8:33 AM
6:03 AM - 8:33 AM

Minor Periods

6:12 PM - 7:42 PM
6:18 AM - 7:48 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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