Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

32.0°F

Measurement Time: Saturday, June 20, 2026, 12:46 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

91.4°F
Sunny
Sunny
70.9°F
87.6°F
7%
WSW 23.7 mph
27.3 mph
91.4°F
19.7°F
0 in
0%
6 mi
998 mbar
1.7

Five Day Weather Forecast

Sunny
Sat
H: 95°F
L: 54°F
Patchy rain nearby
Sun
H: 92°F
L: 53°F
Patchy rain nearby
Mon
H: 89°F
L: 49°F
Patchy rain nearby
Tue
H: 92°F
L: 52°F
Patchy rain nearby
Wed
H: 90°F
L: 55°F

Air Quality

AQI: 1 - Good
PM2.5: 2.2 μg/m3
PM10: 3.5 μg/m3
Carbon Monoxide: 105 μg/m3
Nitrogen Dioxide: 0.4 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 120 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:01 PM
Sunset: 8:27 PM
Daylight: 14 hrs 51 mins
Moonrise: 11:54 AM
Moon Transit: 6:19 PM
Moonset: 12:11 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

3:23 AM - 5:53 AM
5:49 PM - 8:19 PM

Minor Periods

11:24 AM - 12:54 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Red Flag Warning issued June 20 at 12:30AM MDT until June 20 at 10:00PM MDT by NWS Pueblo CO

Effective: Sat June 20, 2026, 12:30 AM
Expires: Sat June 20, 2026, 4:30 PM

* AFFECTED AREA...Fire Weather Zones 221, 225, 227, 228, 229, 230, 231, 232 and 233. * TIMING...From 11 AM this morning to 10 PM MDT this evening. * WINDS...Southwest 15 to 25 mph with gusts up to 40 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.


Red Flag Warning issued June 20 at 11:03AM MDT until June 20 at 10:00PM MDT by NWS Pueblo CO

Effective: Sat June 20, 2026, 11:03 AM
Expires: Sat June 20, 2026, 10:00 PM

* AFFECTED AREA...Fire Weather Zones 221, 225, 227, 228, 229, 230, 231, 232 and 233. * TIMING...Until 10 PM MDT this evening. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 7 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.
Saturday, June 20, 2026

Weather Forecast

Sunny
94.8°F
54°F
74.9°F
25%
0 in
1%
0%
28.6 mph
11.5


Air Quality

AQI: 1 - Good
PM2.5: 4.13 μg/m3
PM10: 6.91 μg/m3
Carbon Monoxide: 116.75 μg/m3
Nitrogen Dioxide: 3.35 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 95.25 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:01 PM
Sunset: 8:27 PM
Daylight: 14 hrs 51 mins
Moonrise: 11:54 AM
Moon Transit: 6:19 PM
Moonset: 12:11 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

3:23 AM - 5:53 AM
5:49 PM - 8:19 PM

Minor Periods

11:24 AM - 12:54 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Sunday, June 21, 2026

Weather Forecast

Patchy rain nearby
92.4°F
53°F
72.4°F
17%
0.01 in
17%
0%
15.7 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 2.9 μg/m3
PM10: 4.98 μg/m3
Carbon Monoxide: 109.5 μg/m3
Nitrogen Dioxide: 3.06 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 97.92 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

Patchy rain nearby
89.4°F
48.8°F
67.2°F
50%
0.01 in
36%
0%
19.5 mph
11.3


Air Quality

AQI: 1 - Good
PM2.5: 4.83 μg/m3
PM10: 10.22 μg/m3
Carbon Monoxide: 116.25 μg/m3
Nitrogen Dioxide: 2.66 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 101.63 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
91.6°F
51.7°F
72.4°F
36%
0.01 in
17%
0%
17.9 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 2.62 μg/m3
PM10: 3.83 μg/m3
Carbon Monoxide: 123.08 μg/m3
Nitrogen Dioxide: 2.13 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 91.75 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
90.1°F
55.4°F
72.3°F
54%
0.1 in
57%
0%
19 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 2.66 μg/m3
PM10: 4.43 μg/m3
Carbon Monoxide: 142.86 μg/m3
Nitrogen Dioxide: 3.1 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 74.14 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

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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