Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

32.0°F

Measurement Time: Thursday, July 23, 2026, 5:59 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

87.8°F
Sunny
Sunny
76.5°F
85.4°F
27%
W 7.2 mph
8.2 mph
87.8°F
50.1°F
0 in
19%
6 mi
1012 mbar
9.1

Five Day Weather Forecast

Sunny
Thu
H: 91°F
L: 60°F
Sunny
Fri
H: 97°F
L: 60°F
Sunny
Sat
H: 99°F
L: 66°F
Sunny
Sun
H: 100°F
L: 65°F
Sunny
Mon
H: 101°F
L: 65°F

Air Quality

AQI: 1 - Good
PM2.5: 3.3 μg/m3
PM10: 3.6 μg/m3
Carbon Monoxide: 92 μg/m3
Nitrogen Dioxide: 0.6 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 101 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:06 PM
Sunset: 8:18 PM
Daylight: 14 hrs 23 mins
Moonrise: 4:00 PM
Moon Transit: 8:42 PM
Moonset: 12:45 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

5:43 AM - 8:13 AM
8:12 PM - 10:42 PM

Minor Periods

3:30 PM - 5:00 PM
12:15 AM - 1:45 AM

Action Rating: 4 out of 5

Flash Flood Watch issued July 23 at 5:14AM MDT until July 24 at 12:00AM MDT by NWS Pueblo CO

Effective: Thu July 23, 2026, 5:14 AM
Expires: Thu July 23, 2026, 1:15 PM

* WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Aspen Acres burn scar. * WHERE...A portion of southeast Colorado, including the following areas, Pueblo County in the vicinity of the Aspen Acres burn scar, and the Wet Mountains Above 6300 Feet. * WHEN...From 2 PM MDT this afternoon through this evening. * IMPACTS...Heavy rainfall over the Aspen Acres burn scar is expected during the time period of the watch. Residents near the Aspen Acres burn scar should prepare for flash flooding and potential debris flows. Be sure to stay up to date with information from local authorities. * ADDITIONAL DETAILS... - Heavy rainfall is forecast over the burn scar, which may lead to flash flooding and debris flows. - Some locations that may experience flash flooding include... Greenhorn Mountain, Silver Cliff, Rye, Colorado City, Beulah, San Isabel and Rosita. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Thursday, July 23, 2026

Weather Forecast

Sunny
91.2°F
60°F
75.7°F
43%
0.01 in
17%
0%
8.5 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 9.87 μg/m3
PM10: 10.23 μg/m3
Carbon Monoxide: 140.46 μg/m3
Nitrogen Dioxide: 6.77 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 71.71 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:06 PM
Sunset: 8:18 PM
Daylight: 14 hrs 23 mins
Moonrise: 4:00 PM
Moon Transit: 8:42 PM
Moonset: 12:45 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

5:43 AM - 8:13 AM
8:12 PM - 10:42 PM

Minor Periods

3:30 PM - 5:00 PM
12:15 AM - 1:45 AM

Action Rating: 4 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
96.7°F
60.1°F
79.3°F
40%
0.06 in
57%
0%
10.7 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 11.76 μg/m3
PM10: 12.22 μg/m3
Carbon Monoxide: 123.29 μg/m3
Nitrogen Dioxide: 6.27 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 83.33 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:06 PM
Sunset: 8:17 PM
Daylight: 14 hrs 22 mins
Moonrise: 5:00 PM
Moon Transit: 9:32 PM
Moonset: 1:20 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

6:32 AM - 9:02 AM
9:02 PM - 11:32 PM

Minor Periods

4:30 PM - 6:00 PM
12:50 AM - 2:20 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
99.4°F
66.1°F
81.7°F
30%
0 in
17%
0%
13.9 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 10.83 μg/m3
PM10: 11.85 μg/m3
Carbon Monoxide: 183.63 μg/m3
Nitrogen Dioxide: 4.31 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 92.88 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:06 PM
Sunset: 8:17 PM
Daylight: 14 hrs 20 mins
Moonrise: 5:55 PM
Moon Transit: 10:23 PM
Moonset: 2:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:25 PM - 6:55 PM
1:33 AM - 3:03 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
100.2°F
65.2°F
80.3°F
34%
0.06 in
57%
0%
13.6 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 9.95 μg/m3
PM10: 10.7 μg/m3
Carbon Monoxide: 144.88 μg/m3
Nitrogen Dioxide: 4.78 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:06 PM
Sunset: 8:16 PM
Daylight: 14 hrs 18 mins
Moonrise: 6:45 PM
Moon Transit: 11:15 PM
Moonset: 2:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

8:14 AM - 10:44 AM
12:00 AM - 12:00 AM

Minor Periods

6:15 PM - 7:45 PM
2:22 AM - 3:52 AM

Action Rating: 2 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
100.8°F
64.8°F
80.7°F
39%
0.18 in
57%
0%
14.5 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 6.87 μg/m3
PM10: 7.4 μg/m3
Carbon Monoxide: 150.71 μg/m3
Nitrogen Dioxide: 6.56 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 67.71 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:06 PM
Sunset: 8:15 PM
Daylight: 14 hrs 17 mins
Moonrise: 7:27 PM
Moon Transit: 12:00 AM
Moonset: 3:48 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:06 AM - 11:36 AM

Minor Periods

6:57 PM - 8:27 PM
3:18 AM - 4:48 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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