Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

41.4°F

Measurement Time: Sunday, February 8, 2026, 6:30 PM MST

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

38.3°F
Clear
Clear
31.9°F
32.9°F
35%
W 9.2 mph
19.3 mph
23.6°F
21.8°F
0 in
0%
9 mi
1021 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 66°F
L: 32°F
Partly Cloudy
Tue
H: 45°F
L: 28°F
Overcast
Wed
H: 64°F
L: 24°F
Sunny
Thu
H: 59°F
L: 35°F
Sunny
Fri
H: 48°F
L: 27°F

Air Quality

AQI: 1 - Good
PM2.5: 6.05 μg/m3
PM10: 7.15 μg/m3
Carbon Monoxide: 149.85 μg/m3
Nitrogen Dioxide: 4.65 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 92 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:14 AM
Sunset: 5:32 PM
Daylight: 10 hrs 34 mins
Moonrise: 12:56 AM
Moon Transit: 5:49 AM
Moonset: 10:37 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%

Best Times for Fishing or Hunting

Major Periods

5:19 AM - 7:49 AM
3:38 PM - 6:08 PM

Minor Periods

10:07 AM - 11:37 AM
12:26 AM - 1:56 AM

Action Rating: 2 out of 5

Red Flag Warning issued February 8 at 2:01PM MST until February 9 at 6:00PM MST by NWS Pueblo CO

Effective: Sun February 8, 2026, 2:01 PM
Expires: Mon February 9, 2026, 6:15 AM

The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 10 AM to 6 PM MST Monday. * AFFECTED AREA...Fire Weather Zones 221, 222 and 237. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 9 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 February 8 at 2:01PM MST until February 9 at 6:00PM MST by NWS Pueblo CO

Effective: Sun February 8, 2026, 2:01 PM
Expires: Mon February 9, 2026, 6:15 AM

The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 10 AM to 6 PM MST Monday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 228, 229, 230 and 233. * WINDS...West 5 to 15 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.
Monday, February 9, 2026

Weather Forecast

Sunny
65.5°F
31.8°F
44.9°F
43%
0 in
0%
0%
12.5 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 5.76 μg/m3
PM10: 6.81 μg/m3
Carbon Monoxide: 141.85 μg/m3
Nitrogen Dioxide: 5.12 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 92.88 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:14 AM
Sunset: 5:32 PM
Daylight: 10 hrs 34 mins
Moonrise: 12:56 AM
Moon Transit: 5:49 AM
Moonset: 10:37 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%

Best Times for Fishing or Hunting

Major Periods

5:19 AM - 7:49 AM
3:38 PM - 6:08 PM

Minor Periods

10:07 AM - 11:37 AM
12:26 AM - 1:56 AM

Action Rating: 2 out of 5

Tuesday, February 10, 2026

Weather Forecast

Partly Cloudy
44.8°F
27.5°F
35.4°F
64%
0 in
0%
0%
7.8 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 5.01 μg/m3
PM10: 5.51 μg/m3
Carbon Monoxide: 151.89 μg/m3
Nitrogen Dioxide: 6.51 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 79.64 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:14 AM
Sunset: 5:33 PM
Daylight: 10 hrs 36 mins
Moonrise: 1:57 AM
Moon Transit: 6:37 AM
Moonset: 11:13 AM
Moon Phase: Last Quarter
Moon Illumination: 30.3%

Best Times for Fishing or Hunting

Major Periods

6:07 AM - 8:37 AM
4:27 PM - 6:57 PM

Minor Periods

10:43 AM - 12:13 AM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Wednesday, February 11, 2026

Weather Forecast

Overcast
63.5°F
24.4°F
42.3°F
55%
0 in
0%
0%
6.9 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 5.84 μg/m3
PM10: 6.65 μg/m3
Carbon Monoxide: 165.09 μg/m3
Nitrogen Dioxide: 6.14 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 75.2 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:14 AM
Sunset: 5:34 PM
Daylight: 10 hrs 39 mins
Moonrise: 2:57 AM
Moon Transit: 7:27 AM
Moonset: 11:56 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

6:57 AM - 9:27 AM
5:18 PM - 7:48 PM

Minor Periods

11:26 AM - 12:56 AM
2:27 AM - 3:57 AM

Action Rating: 4 out of 5

Thursday, February 12, 2026

Weather Forecast

Sunny
58.5°F
34.5°F
44.9°F
37%
0 in
0%
0%
20.1 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 5.02 μg/m3
PM10: 7.01 μg/m3
Carbon Monoxide: 143.25 μg/m3
Nitrogen Dioxide: 4.49 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 86.6 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:14 AM
Sunset: 5:35 PM
Daylight: 10 hrs 41 mins
Moonrise: 3:52 AM
Moon Transit: 8:19 AM
Moonset: 12:47 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

7:49 AM - 10:19 AM
6:11 PM - 8:41 PM

Minor Periods

12:17 AM - 1:47 PM
3:22 AM - 4:52 AM

Action Rating: 2 out of 5

Friday, February 13, 2026

Weather Forecast

Sunny
47.6°F
27.2°F
35.8°F
52%
0 in
0%
0%
4.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.36 μg/m3
PM10: 6.45 μg/m3
Carbon Monoxide: 184.08 μg/m3
Nitrogen Dioxide: 8.52 μg/m3
Sulphur Dioxide: 2.2 μg/m3
Ozone: 83.85 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:14 AM
Sunset: 5:36 PM
Daylight: 10 hrs 43 mins
Moonrise: 4:42 AM
Moon Transit: 9:11 AM
Moonset: 1:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.8%

Best Times for Fishing or Hunting

Major Periods

8:41 AM - 11:11 AM
7:03 PM - 9:33 PM

Minor Periods

1:14 PM - 2:44 PM
4:12 AM - 5:42 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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