Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

66.7°F

Measurement Time: Sunday, June 21, 2026, 2:30 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

76.6°F
Sunny
Sunny
66.9°F
74.2°F
12%
W 4.5 mph
5.1 mph
76.5°F
21.2°F
0 in
0%
6 mi
1007 mbar
3.5

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 93°F
L: 54°F
Sunny
Mon
H: 89°F
L: 50°F
Patchy rain nearby
Tue
H: 87°F
L: 50°F
Patchy rain nearby
Wed
H: 93°F
L: 55°F
Patchy rain nearby
Thu
H: 81°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 1.9 μg/m3
PM10: 3.2 μg/m3
Carbon Monoxide: 109 μg/m3
Nitrogen Dioxide: 2.1 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:01 PM
Sunset: 8:28 PM
Daylight: 14 hrs 51 mins
Moonrise: 12:59 AM
Moon Transit: 7:03 PM
Moonset: 12:35 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
6:33 PM - 9:03 PM

Minor Periods

12:29 AM - 1:59 PM
12:05 AM - 1:35 AM

Action Rating: 2 out of 5

Red Flag Warning issued June 21 at 12:46AM MDT until June 21 at 10:00PM MDT by NWS Pueblo CO

Effective: Sun June 21, 2026, 12:46 AM
Expires: Sun June 21, 2026, 5:00 PM

* AFFECTED AREA...Fire Weather Zone 222. * TIMING...From 11 AM this morning to 10 PM MDT this evening. * WINDS...Northwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution with any outdoor burning.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
Sunday, June 21, 2026

Weather Forecast

Patchy rain nearby
92.8°F
54°F
72.4°F
16%
0.01 in
17%
0%
16.8 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 3.08 μg/m3
PM10: 5.38 μg/m3
Carbon Monoxide: 109.5 μg/m3
Nitrogen Dioxide: 3.03 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 97.58 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:01 PM
Sunset: 8:28 PM
Daylight: 14 hrs 51 mins
Moonrise: 12:59 AM
Moon Transit: 7:03 PM
Moonset: 12:35 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
6:33 PM - 9:03 PM

Minor Periods

12:29 AM - 1:59 PM
12:05 AM - 1:35 AM

Action Rating: 2 out of 5

Monday, June 22, 2026

Weather Forecast

Sunny
88.7°F
50.2°F
67.4°F
46%
0 in
2%
0%
18.3 mph
11.3


Air Quality

AQI: 1 - Good
PM2.5: 4.82 μg/m3
PM10: 10.23 μg/m3
Carbon Monoxide: 116.25 μg/m3
Nitrogen Dioxide: 2.48 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 93.21 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:02 PM
Sunset: 8:28 PM
Daylight: 14 hrs 51 mins
Moonrise: 2:01 PM
Moon Transit: 7:45 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

4:50 AM - 7:20 AM
7:15 PM - 9:45 PM

Minor Periods

1:31 PM - 3:01 PM
12:28 AM - 1:58 AM

Action Rating: 2 out of 5

Tuesday, June 23, 2026

Weather Forecast

Patchy rain nearby
86.8°F
49.9°F
69.2°F
52%
0.15 in
57%
0%
20.8 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 3.5 μg/m3
PM10: 8.15 μg/m3
Carbon Monoxide: 124.69 μg/m3
Nitrogen Dioxide: 3.4 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 87.08 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:02 PM
Sunset: 8:28 PM
Daylight: 14 hrs 51 mins
Moonrise: 3:03 PM
Moon Transit: 8:28 PM
Moonset: 1:20 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%

Best Times for Fishing or Hunting

Major Periods

5:32 AM - 8:02 AM
7:58 PM - 10:28 PM

Minor Periods

2:33 PM - 4:03 PM
12:50 AM - 2:20 AM

Action Rating: 4 out of 5

Wednesday, June 24, 2026

Weather Forecast

Patchy rain nearby
92.5°F
55.2°F
73.4°F
51%
0.04 in
57%
0%
16.3 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 4.2 μg/m3
PM10: 8.53 μg/m3
Carbon Monoxide: 150.83 μg/m3
Nitrogen Dioxide: 2.98 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 91.17 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:02 PM
Sunset: 8:28 PM
Daylight: 14 hrs 51 mins
Moonrise: 4:05 PM
Moon Transit: 9:12 PM
Moonset: 1:45 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

6:16 AM - 8:46 AM
8:42 PM - 11:12 PM

Minor Periods

3:35 PM - 5:05 PM
1:15 AM - 2:45 AM

Action Rating: 3 out of 5

Thursday, June 25, 2026

Weather Forecast

Patchy rain nearby
81.4°F
51.7°F
64.4°F
65%
0.06 in
57%
0%
12.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.9 μg/m3
PM10: 3.74 μg/m3
Carbon Monoxide: 154.43 μg/m3
Nitrogen Dioxide: 3.66 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 74.71 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:02 PM
Sunset: 8:28 PM
Daylight: 14 hrs 51 mins
Moonrise: 5:07 PM
Moon Transit: 9:58 PM
Moonset: 2:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
9:28 PM - 11:58 PM

Minor Periods

4:37 PM - 6:07 PM
1:43 AM - 3:13 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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