Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

52.9°F

Measurement Time: Thursday, February 26, 2026, 10:30 AM 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

63.1°F
Sunny
Sunny
63.1°F
61.7°F
12%
NW 11 mph
12.6 mph
61.7°F
23.6°F
0 in
0%
9 mi
1016 mbar
0.1

Five Day Weather Forecast

Sunny
Thu
H: 64°F
L: 36°F
Sunny
Fri
H: 70°F
L: 30°F
Partly Cloudy
Sat
H: 65°F
L: 29°F
Partly Cloudy
Sun
H: 62°F
L: 30°F
Sunny
Mon
H: 54°F
L: 32°F

Air Quality

AQI: 1 - Good
PM2.5: 3.35 μg/m3
PM10: 4.45 μg/m3
Carbon Monoxide: 155.85 μg/m3
Nitrogen Dioxide: 5.75 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 91 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:12 AM
Sunset: 5:50 PM
Daylight: 11 hrs 14 mins
Moonrise: 12:34 AM
Moon Transit: 8:30 PM
Moonset: 3:28 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

5:24 AM - 7:54 AM
8:00 PM - 10:30 PM

Minor Periods

12:04 AM - 1:34 PM
2:58 AM - 4:28 AM

Action Rating: 2 out of 5

Red Flag Warning issued February 26 at 1:50AM MST until February 26 at 6:00PM MST by NWS Pueblo CO

Effective: Thu February 26, 2026, 1:50 AM
Expires: Thu February 26, 2026, 6:00 PM

* AFFECTED AREA...Fire Weather Zones 222, 227, 228, 229 and 230. * WINDS...West-Northwest 15 to 25 mph with gusts up to 45 mph. The strongest winds will occur today. * RELATIVE HUMIDITY...As low as 9 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Fire Weather Watch issued February 26 at 1:50AM MST until February 27 at 5:00PM MST by NWS Pueblo CO

Effective: Thu February 26, 2026, 1:50 AM
Expires: Thu February 26, 2026, 6:00 PM

* AFFECTED AREA...Fire Weather Zone 221. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution with any outdoor burning.

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Fire Weather Watch issued February 26 at 1:50AM MST until February 27 at 5:00PM MST by NWS Pueblo CO

Effective: Thu February 26, 2026, 1:50 AM
Expires: Thu February 26, 2026, 6:00 PM

* AFFECTED AREA...Fire Weather Zones 222, 227, 228, 229 and 230. * WINDS...West-Northwest 15 to 25 mph with gusts up to 45 mph. The strongest winds will occur today. * RELATIVE HUMIDITY...As low as 9 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Red Flag Warning issued February 26 at 11:34AM MST until February 26 at 6:00PM MST by NWS Pueblo CO

Effective: Thu February 26, 2026, 11:34 AM
Expires: Fri February 27, 2026, 3:45 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 11 AM to 6 PM MST Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 222, 227, 228, 229 and 230. * WINDS...Northwest 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...5 to 10 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.


Red Flag Warning issued February 26 at 11:34AM MST until February 27 at 6:00PM MST by NWS Pueblo CO

Effective: Thu February 26, 2026, 11:34 AM
Expires: Fri February 27, 2026, 3:45 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 11 AM to 6 PM MST Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 222, 227, 228, 229 and 230. * WINDS...Northwest 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...5 to 10 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.
Thursday, February 26, 2026

Weather Forecast

Sunny
64.2°F
35.6°F
48.9°F
45%
0 in
0%
0%
24.6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 3.51 μg/m3
PM10: 4.21 μg/m3
Carbon Monoxide: 127.61 μg/m3
Nitrogen Dioxide: 2.3 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 84.96 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:12 AM
Sunset: 5:50 PM
Daylight: 11 hrs 14 mins
Moonrise: 12:34 AM
Moon Transit: 8:30 PM
Moonset: 3:28 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

5:24 AM - 7:54 AM
8:00 PM - 10:30 PM

Minor Periods

12:04 AM - 1:34 PM
2:58 AM - 4:28 AM

Action Rating: 2 out of 5

Friday, February 27, 2026

Weather Forecast

Sunny
70.3°F
29.7°F
46.6°F
43%
0 in
0%
0%
10.5 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.92 μg/m3
PM10: 4.05 μg/m3
Carbon Monoxide: 138.01 μg/m3
Nitrogen Dioxide: 3.41 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 104.8 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:12 AM
Sunset: 5:51 PM
Daylight: 11 hrs 16 mins
Moonrise: 1:46 PM
Moon Transit: 9:30 PM
Moonset: 4:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

6:26 AM - 8:56 AM
9:00 PM - 11:30 PM

Minor Periods

1:16 PM - 2:46 PM
3:52 AM - 5:22 AM

Action Rating: 3 out of 5

Saturday, February 28, 2026

Weather Forecast

Partly Cloudy
65.1°F
29.1°F
47.6°F
35%
0 in
0%
0%
8.7 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 2.97 μg/m3
PM10: 4.21 μg/m3
Carbon Monoxide: 143.01 μg/m3
Nitrogen Dioxide: 4.34 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 105.76 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:12 AM
Sunset: 5:52 PM
Daylight: 11 hrs 19 mins
Moonrise: 3:00 PM
Moon Transit: 10:25 PM
Moonset: 5:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

2:30 PM - 4:00 PM
4:34 AM - 6:04 AM

Action Rating: 3 out of 5

Sunday, March 1, 2026

Weather Forecast

Partly Cloudy
61.5°F
30.2°F
45°F
51%
0 in
0%
0%
10.3 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 3.84 μg/m3
Carbon Monoxide: 141.9 μg/m3
Nitrogen Dioxide: 6.01 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 86.36 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 12:12 AM
Sunset: 5:53 PM
Daylight: 11 hrs 21 mins
Moonrise: 4:12 PM
Moon Transit: 11:16 PM
Moonset: 5:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

8:16 AM - 10:46 AM
12:00 AM - 12:00 AM

Minor Periods

3:42 PM - 5:12 PM
5:09 AM - 6:39 AM

Action Rating: 3 out of 5

Monday, March 2, 2026

Weather Forecast

Sunny
53.8°F
32°F
42.1°F
67%
0 in
0%
0%
6 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 6 μg/m3
PM10: 6.32 μg/m3
Carbon Monoxide: 171 μg/m3
Nitrogen Dioxide: 9.9 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 73.23 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 12:12 AM
Sunset: 5:54 PM
Daylight: 11 hrs 24 mins
Moonrise: 5:21 PM
Moon Transit: 12:00 AM
Moonset: 6:08 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:05 AM - 11:35 AM

Minor Periods

4:51 PM - 6:21 PM
5:38 AM - 7:08 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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