Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

72.3°F

Measurement Time: Tuesday, July 21, 2026, 3:30 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

86.6°F
Sunny
Sunny
72.1°F
84.6°F
30%
E 12.8 mph
14.7 mph
86.6°F
51.2°F
0 in
5%
6 mi
1015 mbar
6.3

Five Day Weather Forecast

Sunny
Tue
H: 95°F
L: 63°F
Sunny
Wed
H: 93°F
L: 62°F
Sunny
Thu
H: 94°F
L: 61°F
Sunny
Fri
H: 99°F
L: 61°F
Sunny
Sat
H: 99°F
L: 66°F

Air Quality

AQI: 2 - Moderate
PM2.5: 7.1 μg/m3
PM10: 9.1 μg/m3
Carbon Monoxide: 108 μg/m3
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 105 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:06 PM
Sunset: 8:20 PM
Daylight: 14 hrs 27 mins
Moonrise: 1:56 PM
Moon Transit: 7:08 PM
Moonset: 12:47 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
6:38 PM - 9:08 PM

Minor Periods

1:26 PM - 2:56 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Air Quality Alert issued July 21 at 9:10AM MDT by NWS Pueblo CO

Effective: Tue July 21, 2026, 9:10 AM
Expires: Wed July 22, 2026, 9:00 AM

The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Custer and southwestern Pueblo Counties. Locations include, but are not limited to Westcliffe, Rye, Beulah, and Colorado City. WHEN...900 AM Tuesday July 21 to 900 AM Wednesday July 22 IMPACTS...Moderate to heavy smoke from the Aspen Acres Fire is possible throughout the advisory area through at least Wednesday morning. HEALTH INFORMATION...Public Health Recommendations: If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. If visibility is less than 5 miles in smoke in your neighborhood, smoke has reached levels that are unhealthy.


Tuesday, July 21, 2026

Weather Forecast

Sunny
94.9°F
62.8°F
80.1°F
29%
0 in
1%
0%
19.2 mph
12.1


Air Quality

AQI: 1 - Good
PM2.5: 9.08 μg/m3
PM10: 12.85 μg/m3
Carbon Monoxide: 110.04 μg/m3
Nitrogen Dioxide: 4.64 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 90.21 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:06 PM
Sunset: 8:20 PM
Daylight: 14 hrs 27 mins
Moonrise: 1:56 PM
Moon Transit: 7:08 PM
Moonset: 12:47 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
6:38 PM - 9:08 PM

Minor Periods

1:26 PM - 2:56 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
93.2°F
62.1°F
78.8°F
36%
0.05 in
57%
0%
8.3 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 11 μg/m3
PM10: 15.24 μg/m3
Carbon Monoxide: 127.29 μg/m3
Nitrogen Dioxide: 5.43 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 85.42 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:06 PM
Sunset: 8:19 PM
Daylight: 14 hrs 25 mins
Moonrise: 2:58 PM
Moon Transit: 7:54 PM
Moonset: 12:14 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
7:24 PM - 9:54 PM

Minor Periods

2:28 PM - 3:58 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
94.1°F
60.7°F
75.5°F
49%
0.04 in
57%
0%
8.7 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 9.8 μg/m3
PM10: 10.09 μg/m3
Carbon Monoxide: 115.29 μg/m3
Nitrogen Dioxide: 7.41 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 75.21 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:06 PM
Sunset: 8:18 PM
Daylight: 14 hrs 23 mins
Moonrise: 4:00 PM
Moon Transit: 8:42 PM
Moonset: 12:45 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

5:43 AM - 8:13 AM
8:12 PM - 10:42 PM

Minor Periods

3:30 PM - 5:00 PM
12:15 AM - 1:45 AM

Action Rating: 4 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
99.1°F
60.5°F
78.4°F
42%
0.02 in
36%
0%
17.2 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 11.35 μg/m3
PM10: 11.84 μg/m3
Carbon Monoxide: 139.67 μg/m3
Nitrogen Dioxide: 6.06 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 87.75 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:06 PM
Sunset: 8:17 PM
Daylight: 14 hrs 22 mins
Moonrise: 5:00 PM
Moon Transit: 9:32 PM
Moonset: 1:20 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

6:32 AM - 9:02 AM
9:02 PM - 11:32 PM

Minor Periods

4:30 PM - 6:00 PM
12:50 AM - 2:20 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
99.3°F
65.6°F
79°F
37%
0.02 in
36%
0%
18.3 mph
9


Air Quality

AQI: 2 - Moderate
PM2.5: 15.63 μg/m3
PM10: 16.03 μg/m3
Carbon Monoxide: 275 μg/m3
Nitrogen Dioxide: 11.63 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 55.14 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:06 PM
Sunset: 8:17 PM
Daylight: 14 hrs 20 mins
Moonrise: 5:55 PM
Moon Transit: 10:23 PM
Moonset: 2:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

7:23 AM - 9:53 AM
12:00 AM - 12:00 AM

Minor Periods

5:25 PM - 6:55 PM
1:33 AM - 3:03 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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