Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

62.6°F

Measurement Time: Wednesday, April 15, 2026, 10:30 AM 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

68.1°F
Sunny
Sunny
68.1°F
68.1°F
15%
WSW 15.4 mph
17.8 mph
68.1°F
20.1°F
0 in
1%
6 mi
1007 mbar
3.7

Five Day Weather Forecast

Sunny
Wed
H: 69°F
L: 31°F
Sunny
Thu
H: 77°F
L: 35°F
Sunny
Fri
H: 53°F
L: 28°F
Sunny
Sat
H: 55°F
L: 20°F
Sunny
Sun
H: 71°F
L: 33°F

Air Quality

AQI: 1 - Good
PM2.5: 4.05 μg/m3
PM10: 7.95 μg/m3
Carbon Monoxide: 145.85 μg/m3
Nitrogen Dioxide: 5.05 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 1:00 PM
Sunset: 7:37 PM
Daylight: 13 hrs 12 mins
Moonrise: 5:14 AM
Moon Transit: 9:33 AM
Moonset: 5:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
9:03 AM - 11:33 AM

Minor Periods

5:24 PM - 6:54 PM
4:44 AM - 6:14 AM

Action Rating: 3 out of 5

Fire Weather Watch issued April 15 at 12:07AM MDT until April 16 at 9:00PM MDT by NWS Pueblo CO

Effective: Wed April 15, 2026, 12:07 AM
Expires: Wed April 15, 2026, 4:15 PM

* AFFECTED AREA...Fire Weather Zones 220, 221, 222, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236 and 237. * TIMING...From Thursday morning through Thursday evening. * WINDS...Southwest 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically.

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Wednesday, April 15, 2026

Weather Forecast

Sunny
68.9°F
31.3°F
50.7°F
38%
0 in
0%
0%
16.3 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 3.07 μg/m3
PM10: 5.01 μg/m3
Carbon Monoxide: 137.05 μg/m3
Nitrogen Dioxide: 2.69 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 113.32 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 1:00 PM
Sunset: 7:37 PM
Daylight: 13 hrs 12 mins
Moonrise: 5:14 AM
Moon Transit: 9:33 AM
Moonset: 5:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
9:03 AM - 11:33 AM

Minor Periods

5:24 PM - 6:54 PM
4:44 AM - 6:14 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Sunny
77.2°F
34.7°F
55.7°F
31%
0 in
0%
0%
26.2 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 3.85 μg/m3
PM10: 7.5 μg/m3
Carbon Monoxide: 140.89 μg/m3
Nitrogen Dioxide: 3.76 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 99.96 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 1:00 PM
Sunset: 7:37 PM
Daylight: 13 hrs 15 mins
Moonrise: 5:40 AM
Moon Transit: 12:17 AM
Moonset: 7:07 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:47 AM - 2:17 PM

Minor Periods

6:37 PM - 8:07 PM
5:10 AM - 6:40 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Sunny
52.7°F
27.7°F
39.7°F
44%
0 in
0%
0%
16.8 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 4.05 μg/m3
PM10: 7.88 μg/m3
Carbon Monoxide: 148.53 μg/m3
Nitrogen Dioxide: 3.56 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 110.84 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:00 PM
Sunset: 7:38 PM
Daylight: 13 hrs 17 mins
Moonrise: 6:09 AM
Moon Transit: 1:09 PM
Moonset: 8:24 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:39 AM - 3:09 PM

Minor Periods

7:54 PM - 9:24 PM
5:39 AM - 7:09 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Sunny
55.2°F
19.6°F
37.9°F
41%
0 in
0%
0%
11.2 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 2.9 μg/m3
PM10: 4.27 μg/m3
Carbon Monoxide: 149.45 μg/m3
Nitrogen Dioxide: 3.25 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 127.64 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 1:00 PM
Sunset: 7:39 PM
Daylight: 13 hrs 19 mins
Moonrise: 6:43 AM
Moon Transit: 2:06 PM
Moonset: 9:42 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:36 PM - 4:06 PM

Minor Periods

9:12 PM - 10:42 PM
6:13 AM - 7:43 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Sunny
70.7°F
33.3°F
51.3°F
18%
0 in
0%
0%
7.8 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 3.53 μg/m3
PM10: 5.77 μg/m3
Carbon Monoxide: 178.12 μg/m3
Nitrogen Dioxide: 6.43 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 97.31 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 1:00 PM
Sunset: 7:40 PM
Daylight: 13 hrs 22 mins
Moonrise: 7:23 AM
Moon Transit: 3:07 PM
Moonset: 11:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
6:53 AM - 8:23 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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