Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

70.5°F

Measurement Time: Monday, June 8, 2026, 5:30 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

58.3°F
Partly Cloudy
Partly Cloudy
50.5°F
58.3°F
46%
S 2.2 mph
6.7 mph
58.6°F
37.1°F
0 in
54%
6 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 88°F
L: 55°F
Sunny
Wed
H: 92°F
L: 54°F
Sunny
Thu
H: 80°F
L: 49°F
Sunny
Fri
H: 88°F
L: 46°F
Sunny
Sat
H: 87°F
L: 54°F

Air Quality

AQI: 1 - Good
PM2.5: 4.3 μg/m3
PM10: 9.4 μg/m3
Carbon Monoxide: 125 μg/m3
Nitrogen Dioxide: 6.1 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:23 PM
Daylight: 14 hrs 47 mins
Moonrise: 1:38 AM
Moon Transit: 4:27 AM
Moonset: 2:23 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
3:57 AM - 6:27 AM

Minor Periods

1:53 PM - 3:23 PM
1:08 AM - 2:38 AM

Action Rating: 2 out of 5

Fire Weather Watch issued June 8 at 3:37PM MDT until June 10 at 8:00PM MDT by NWS Pueblo CO

Effective: Mon June 8, 2026, 3:37 PM
Expires: Tue June 9, 2026, 7:45 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 noon to 7 PM MDT Tuesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 222, 228 and 229. * TIMING...For the first Red Flag Warning, until 7 PM MDT this evening. For the second Red Flag Warning, from noon to 7 PM MDT Tuesday. For the Fire Weather Watch, from Wednesday afternoon through Wednesday evening. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 6 percent. * TEMPERATURES...Up to 101. * Lightning... * 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 June 8 at 3:37PM MDT until June 9 at 7:00PM MDT by NWS Pueblo CO

Effective: Mon June 8, 2026, 3:37 PM
Expires: Tue June 9, 2026, 7:45 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 noon to 7 PM MDT Tuesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 222, 228 and 229. * TIMING...For the first Red Flag Warning, until 7 PM MDT this evening. For the second Red Flag Warning, from noon to 7 PM MDT Tuesday. For the Fire Weather Watch, from Wednesday afternoon through Wednesday evening. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 6 percent. * TEMPERATURES...Up to 101. * Lightning... * 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 June 8 at 3:37PM MDT until June 8 at 7:00PM MDT by NWS Pueblo CO

Effective: Mon June 8, 2026, 3:37 PM
Expires: Tue June 9, 2026, 7:45 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 noon to 7 PM MDT Tuesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 222, 228 and 229. * TIMING...For the first Red Flag Warning, until 7 PM MDT this evening. For the second Red Flag Warning, from noon to 7 PM MDT Tuesday. For the Fire Weather Watch, from Wednesday afternoon through Wednesday evening. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 6 percent. * TEMPERATURES...Up to 101. * Lightning... * 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.
Tuesday, June 9, 2026

Weather Forecast

Sunny
87.8°F
55.1°F
72.2°F
26%
0 in
0%
0%
28 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 4.05 μg/m3
PM10: 6.73 μg/m3
Carbon Monoxide: 117.04 μg/m3
Nitrogen Dioxide: 3.5 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 86 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:23 PM
Daylight: 14 hrs 47 mins
Moonrise: 1:38 AM
Moon Transit: 4:27 AM
Moonset: 2:23 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
3:57 AM - 6:27 AM

Minor Periods

1:53 PM - 3:23 PM
1:08 AM - 2:38 AM

Action Rating: 2 out of 5

Wednesday, June 10, 2026

Weather Forecast

Sunny
92.1°F
54.3°F
73.1°F
17%
0 in
0%
0%
29.1 mph
11.6


Air Quality

AQI: 1 - Good
PM2.5: 2.89 μg/m3
PM10: 4.93 μg/m3
Carbon Monoxide: 116.29 μg/m3
Nitrogen Dioxide: 4.08 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 85.58 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:24 PM
Daylight: 14 hrs 48 mins
Moonrise: 2:03 AM
Moon Transit: 8:41 AM
Moonset: 3:32 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:11 AM - 10:41 AM
6:32 PM - 9:02 PM

Minor Periods

3:02 PM - 4:32 PM
1:33 AM - 3:03 AM

Action Rating: 2 out of 5

Thursday, June 11, 2026

Weather Forecast

Sunny
80.2°F
48.5°F
65.1°F
26%
0 in
0%
0%
17.9 mph
11.6


Air Quality

AQI: 1 - Good
PM2.5: 4.13 μg/m3
PM10: 10.49 μg/m3
Carbon Monoxide: 106.88 μg/m3
Nitrogen Dioxide: 3.88 μg/m3
Sulphur Dioxide: 0.32 μg/m3
Ozone: 82.96 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:24 PM
Daylight: 14 hrs 49 mins
Moonrise: 2:32 AM
Moon Transit: 9:32 AM
Moonset: 4:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

7:25 PM - 9:55 PM
9:02 AM - 11:32 AM

Minor Periods

4:17 PM - 5:47 PM
2:02 AM - 3:32 AM

Action Rating: 2 out of 5

Friday, June 12, 2026

Weather Forecast

Sunny
87.7°F
46.4°F
65.5°F
39%
0 in
1%
0%
13.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.1 μg/m3
PM10: 14.58 μg/m3
Carbon Monoxide: 115.51 μg/m3
Nitrogen Dioxide: 2.46 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 88.25 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:25 PM
Daylight: 14 hrs 49 mins
Moonrise: 3:05 AM
Moon Transit: 10:28 AM
Moonset: 6:05 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

8:23 PM - 10:53 PM
9:58 AM - 12:28 AM

Minor Periods

5:35 PM - 7:05 PM
2:35 AM - 4:05 AM

Action Rating: 3 out of 5

Saturday, June 13, 2026

Weather Forecast

Sunny
87.4°F
54.2°F
67.1°F
43%
0 in
0%
0%
8.9 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 4.27 μg/m3
PM10: 7.66 μg/m3
Carbon Monoxide: 158.71 μg/m3
Nitrogen Dioxide: 9.57 μg/m3
Sulphur Dioxide: 0.27 μg/m3
Ozone: 44.86 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:25 PM
Daylight: 14 hrs 50 mins
Moonrise: 3:47 AM
Moon Transit: 11:30 AM
Moonset: 7:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

9:27 PM - 11:57 PM
11:00 AM - 1:30 PM

Minor Periods

6:53 PM - 8:23 PM
3:17 AM - 4:47 AM

Action Rating: 3 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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