Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

79.7°F

Measurement Time: Thursday, July 16, 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

86.9°F
Sunny
Sunny
72°F
83.9°F
25%
E 13.9 mph
15.9 mph
86.9°F
47°F
0 in
2%
6 mi
1010 mbar
6.3

Five Day Weather Forecast

Sunny
Thu
H: 89°F
L: 57°F
Sunny
Fri
H: 90°F
L: 57°F
Sunny
Sat
H: 93°F
L: 60°F
Sunny
Sun
H: 95°F
L: 62°F
Sunny
Mon
H: 98°F
L: 63°F

Air Quality

AQI: 1 - Good
PM2.5: 9.5 μg/m3
PM10: 12.5 μg/m3
Carbon Monoxide: 106 μg/m3
Nitrogen Dioxide: 0.9 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 123 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:06 PM
Sunset: 8:23 PM
Daylight: 14 hrs 34 mins
Moonrise: 8:25 AM
Moon Transit: 3:23 PM
Moonset: 10:10 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:23 AM - 2:53 AM
2:53 PM - 5:23 PM

Minor Periods

9:40 PM - 11:10 PM
7:55 AM - 9:25 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
89°F
56.7°F
73.2°F
42%
0 in
17%
0%
17.7 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 10.43 μg/m3
PM10: 14.97 μg/m3
Carbon Monoxide: 109.54 μg/m3
Nitrogen Dioxide: 5.27 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 88.08 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:06 PM
Sunset: 8:23 PM
Daylight: 14 hrs 34 mins
Moonrise: 8:25 AM
Moon Transit: 3:23 PM
Moonset: 10:10 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:23 AM - 2:53 AM
2:53 PM - 5:23 PM

Minor Periods

9:40 PM - 11:10 PM
7:55 AM - 9:25 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
89.9°F
57°F
73.7°F
38%
0.01 in
17%
0%
12.1 mph
11.7


Air Quality

AQI: 1 - Good
PM2.5: 8.63 μg/m3
PM10: 13.53 μg/m3
Carbon Monoxide: 109 μg/m3
Nitrogen Dioxide: 4.7 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 86.5 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:06 PM
Sunset: 8:22 PM
Daylight: 14 hrs 32 mins
Moonrise: 9:36 AM
Moon Transit: 4:11 PM
Moonset: 10:36 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
3:41 PM - 6:11 PM

Minor Periods

10:06 PM - 11:36 PM
9:06 AM - 10:36 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
92.5°F
60.2°F
77.4°F
33%
0 in
1%
0%
13.4 mph
11.7


Air Quality

AQI: 1 - Good
PM2.5: 5.72 μg/m3
PM10: 8.47 μg/m3
Carbon Monoxide: 112.58 μg/m3
Nitrogen Dioxide: 4.62 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 87.92 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:06 PM
Sunset: 8:22 PM
Daylight: 14 hrs 31 mins
Moonrise: 10:44 AM
Moon Transit: 4:57 PM
Moonset: 11:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

2:00 AM - 4:30 AM
4:27 PM - 6:57 PM

Minor Periods

10:30 PM - 12:00 PM
10:14 AM - 11:44 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
95°F
62°F
78.7°F
30%
0 in
0%
0%
12.8 mph
12


Air Quality

AQI: 1 - Good
PM2.5: 5.96 μg/m3
PM10: 8.23 μg/m3
Carbon Monoxide: 116.9 μg/m3
Nitrogen Dioxide: 4.48 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 93.75 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:06 PM
Sunset: 8:21 PM
Daylight: 14 hrs 30 mins
Moonrise: 11:49 AM
Moon Transit: 5:40 PM
Moonset: 11:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

2:45 AM - 5:15 AM
5:10 PM - 7:40 PM

Minor Periods

12:00 AM - 12:00 AM
11:19 AM - 12:49 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
97.8°F
63.1°F
81.3°F
27%
0 in
0%
0%
17.2 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 8.04 μg/m3
PM10: 12.07 μg/m3
Carbon Monoxide: 163.29 μg/m3
Nitrogen Dioxide: 9.74 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 59.71 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:06 PM
Sunset: 8:20 PM
Daylight: 14 hrs 28 mins
Moonrise: 12:53 AM
Moon Transit: 6:24 PM
Moonset: 12:23 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

3:28 AM - 5:58 AM
5:54 PM - 8:24 PM

Minor Periods

12:23 AM - 1:53 PM
12:00 AM - 12:00 AM

Action Rating: 4 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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