Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

63.5°F

Measurement Time: Friday, April 24, 2026, 2:30 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

51.8°F
Clear
Clear
48.1°F
51.8°F
14%
W 10.3 mph
21.6 mph
48.1°F
2.6°F
0 in
12%
6 mi
1003 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 70°F
L: 34°F
Partly Cloudy
Sat
H: 70°F
L: 33°F
Patchy rain nearby
Sun
H: 69°F
L: 39°F
Patchy rain nearby
Mon
H: 65°F
L: 35°F
Patchy rain nearby
Tue
H: 67°F
L: 38°F

Air Quality

AQI: 1 - Good
PM2.5: 3.25 μg/m3
PM10: 4.95 μg/m3
Carbon Monoxide: 147.85 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:58 AM
Sunset: 7:45 PM
Daylight: 13 hrs 33 mins
Moonrise: 12:52 AM
Moon Transit: 8:08 PM
Moonset: 2:42 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

5:08 AM - 7:38 AM
7:38 PM - 10:08 PM

Minor Periods

12:22 AM - 1:52 PM
2:12 AM - 3:42 AM

Action Rating: 3 out of 5

Red Flag Warning issued April 24 at 12:36AM MDT until April 24 at 9:00PM MDT by NWS Pueblo CO

Effective: Fri April 24, 2026, 12:36 AM
Expires: Fri April 24, 2026, 4:45 PM

* AFFECTED AREA...Fire Weather Zones 220, 221, 222, 225, 226, 227, 228, 231, 232, 233, 234, 235, 236 and 237. * TIMING...From 11 AM this morning to 9 PM MDT this evening. * WINDS...Southwest 10 to 20 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 6 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.


Red Flag Warning issued April 24 at 10:31AM MDT until April 24 at 9:00PM MDT by NWS Pueblo CO

Effective: Fri April 24, 2026, 10:31 AM
Expires: Fri April 24, 2026, 9:00 PM

* AFFECTED AREA...Fire Weather Zones 221, 222, 225, 226, 227, 228, 231, 232, 233, 234, 235, 236 and 237. * TIMING...Until 9 PM MDT this evening. * WINDS...South 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 6 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically.

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.
Friday, April 24, 2026

Weather Forecast

Sunny
69.6°F
33.7°F
52°F
17%
0 in
0%
0%
16.3 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 2.85 μg/m3
PM10: 8.02 μg/m3
Carbon Monoxide: 146.89 μg/m3
Nitrogen Dioxide: 3.48 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 107.12 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:58 AM
Sunset: 7:45 PM
Daylight: 13 hrs 33 mins
Moonrise: 12:52 AM
Moon Transit: 8:08 PM
Moonset: 2:42 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

5:08 AM - 7:38 AM
7:38 PM - 10:08 PM

Minor Periods

12:22 AM - 1:52 PM
2:12 AM - 3:42 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Partly Cloudy
69.8°F
33.1°F
52.8°F
30%
0 in
0%
0%
15.2 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 2.86 μg/m3
PM10: 4.79 μg/m3
Carbon Monoxide: 151.81 μg/m3
Nitrogen Dioxide: 4.7 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 105.12 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 12:58 AM
Sunset: 7:46 PM
Daylight: 13 hrs 36 mins
Moonrise: 2:01 PM
Moon Transit: 8:56 PM
Moonset: 3:14 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

5:59 AM - 8:29 AM
8:26 PM - 10:56 PM

Minor Periods

1:31 PM - 3:01 PM
2:44 AM - 4:14 AM

Action Rating: 3 out of 5

Sunday, April 26, 2026

Weather Forecast

Patchy rain nearby
68.7°F
38.9°F
50.6°F
52%
0.02 in
86%
0%
31.5 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 4.77 μg/m3
PM10: 12.53 μg/m3
Carbon Monoxide: 155.05 μg/m3
Nitrogen Dioxide: 3.63 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 12:57 AM
Sunset: 7:47 PM
Daylight: 13 hrs 38 mins
Moonrise: 3:07 PM
Moon Transit: 9:41 PM
Moonset: 3:40 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

6:45 AM - 9:15 AM
9:11 PM - 11:41 PM

Minor Periods

2:37 PM - 4:07 PM
3:10 AM - 4:40 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Patchy rain nearby
64.8°F
34.5°F
49.1°F
50%
0.19 in
76%
0%
13.9 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 2.17 μg/m3
PM10: 4.37 μg/m3
Carbon Monoxide: 128.36 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 107.12 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 12:57 AM
Sunset: 7:48 PM
Daylight: 13 hrs 40 mins
Moonrise: 4:11 PM
Moon Transit: 10:23 PM
Moonset: 4:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

7:28 AM - 9:58 AM
12:00 AM - 12:00 AM

Minor Periods

3:41 PM - 5:11 PM
3:34 AM - 5:04 AM

Action Rating: 2 out of 5

Tuesday, April 28, 2026

Weather Forecast

Patchy rain nearby
66.7°F
37.7°F
51.4°F
48%
0.01 in
83%
0%
24.4 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 3.28 μg/m3
PM10: 5.88 μg/m3
Carbon Monoxide: 146.18 μg/m3
Nitrogen Dioxide: 4.83 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 81.31 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 12:57 AM
Sunset: 7:49 PM
Daylight: 13 hrs 42 mins
Moonrise: 5:13 PM
Moon Transit: 11:05 PM
Moonset: 4:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

8:10 AM - 10:40 AM
12:00 AM - 12:00 AM

Minor Periods

4:43 PM - 6:13 PM
3:57 AM - 5:27 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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