Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

77.0°F

Measurement Time: Saturday, July 11, 2026, 8:30 AM 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

92.7°F
Sunny
Sunny
76.1°F
89.1°F
18%
ESE 16.8 mph
19.3 mph
92.7°F
43.7°F
0 in
4%
6 mi
1011 mbar
9.1

Five Day Weather Forecast

Sunny
Sat
H: 93°F
L: 56°F
Sunny
Sun
H: 91°F
L: 59°F
Sunny
Mon
H: 93°F
L: 59°F
Sunny
Tue
H: 92°F
L: 58°F
Sunny
Wed
H: 90°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 8.2 μg/m3
PM10: 12.3 μg/m3
Carbon Monoxide: 135 μg/m3
Nitrogen Dioxide: 0.7 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 134 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:05 PM
Sunset: 8:25 PM
Daylight: 14 hrs 40 mins
Moonrise: 2:24 AM
Moon Transit: 10:15 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

8:12 PM - 10:42 PM
9:45 AM - 12:15 AM

Minor Periods

5:44 PM - 7:14 PM
1:54 AM - 3:24 AM

Action Rating: 3 out of 5

Saturday, July 11, 2026

Weather Forecast

Sunny
92.7°F
55.9°F
74.6°F
41%
0 in
1%
0%
18.6 mph
11.9


Air Quality

AQI: 1 - Good
PM2.5: 11.04 μg/m3
PM10: 15.54 μg/m3
Carbon Monoxide: 136.17 μg/m3
Nitrogen Dioxide: 3.97 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 104.08 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:05 PM
Sunset: 8:25 PM
Daylight: 14 hrs 40 mins
Moonrise: 2:24 AM
Moon Transit: 10:15 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

8:12 PM - 10:42 PM
9:45 AM - 12:15 AM

Minor Periods

5:44 PM - 7:14 PM
1:54 AM - 3:24 AM

Action Rating: 3 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
91°F
59.1°F
75.5°F
35%
0 in
17%
0%
17.4 mph
12.4


Air Quality

AQI: 1 - Good
PM2.5: 8.15 μg/m3
PM10: 11.06 μg/m3
Carbon Monoxide: 122.04 μg/m3
Nitrogen Dioxide: 3.63 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 98.21 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:05 PM
Sunset: 8:25 PM
Daylight: 14 hrs 39 mins
Moonrise: 3:22 AM
Moon Transit: 11:22 AM
Moonset: 7:21 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

9:20 PM - 11:50 PM
10:52 AM - 1:22 PM

Minor Periods

6:51 PM - 8:21 PM
2:52 AM - 4:22 AM

Action Rating: 3 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
93.4°F
59.1°F
76.3°F
32%
0 in
1%
0%
19.9 mph
12.2


Air Quality

AQI: 1 - Good
PM2.5: 8.49 μg/m3
PM10: 12.88 μg/m3
Carbon Monoxide: 120 μg/m3
Nitrogen Dioxide: 4.07 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 98.83 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:05 PM
Sunset: 8:25 PM
Daylight: 14 hrs 37 mins
Moonrise: 4:32 AM
Moon Transit: 12:28 AM
Moonset: 8:19 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:58 AM - 2:28 PM

Minor Periods

7:49 PM - 9:19 PM
4:02 AM - 5:32 AM

Action Rating: 4 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
91.7°F
58.3°F
75.4°F
34%
0 in
1%
0%
19.9 mph
12


Air Quality

AQI: 1 - Good
PM2.5: 7.1 μg/m3
PM10: 13.12 μg/m3
Carbon Monoxide: 113.08 μg/m3
Nitrogen Dioxide: 3.63 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 88.21 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:06 PM
Sunset: 8:24 PM
Daylight: 14 hrs 36 mins
Moonrise: 5:49 AM
Moon Transit: 1:32 PM
Moonset: 9:04 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:02 PM - 3:32 PM

Minor Periods

8:34 PM - 10:04 PM
5:19 AM - 6:49 AM

Action Rating: 5 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
90.4°F
57.6°F
74.9°F
34%
0 in
1%
0%
17.9 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 8.09 μg/m3
PM10: 13.5 μg/m3
Carbon Monoxide: 166.29 μg/m3
Nitrogen Dioxide: 9.3 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 56.43 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:06 PM
Sunset: 8:23 PM
Daylight: 14 hrs 35 mins
Moonrise: 7:08 AM
Moon Transit: 2:30 PM
Moonset: 9:40 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:00 PM - 4:30 PM

Minor Periods

9:10 PM - 10:40 PM
6:38 AM - 8:08 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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