Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

53.2°F

Measurement Time: Thursday, May 7, 2026, 6:30 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

59°F
Sunny
Sunny
58.1°F
59°F
31%
W 9.2 mph
10.6 mph
58.1°F
29°F
0 in
20%
6 mi
1013 mbar
8.2

Five Day Weather Forecast

Sunny
Thu
H: 69°F
L: 26°F
Patchy rain nearby
Fri
H: 75°F
L: 41°F
Patchy rain nearby
Sat
H: 77°F
L: 45°F
Patchy rain nearby
Sun
H: 70°F
L: 50°F
Sunny
Mon
H: 86°F
L: 46°F

Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 7.25 μg/m3
Carbon Monoxide: 122.85 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 123 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:56 AM
Sunset: 7:57 PM
Daylight: 14 hrs 1 mins
Moonrise: 12:50 AM
Moon Transit: 5:27 AM
Moonset: 10:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
3:18 PM - 5:48 PM

Minor Periods

9:40 AM - 11:10 AM
12:20 AM - 1:50 AM

Action Rating: 2 out of 5

Freeze Warning issued May 7 at 5:12AM MDT until May 7 at 8:00AM MDT by NWS Pueblo CO

Effective: Thu May 7, 2026, 5:12 AM
Expires: Thu May 7, 2026, 8:00 AM

* WHAT...Sub-freezing temperatures in the mid 20s are expected across a large portion of the southeast plains of Colorado. * WHERE...Portions of central, east central, and southeast Colorado. * WHEN...Until 8 AM MDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.
Thursday, May 7, 2026

Weather Forecast

Sunny
68.6°F
26°F
46.7°F
48%
0 in
0%
0%
11 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 4.03 μg/m3
PM10: 4.93 μg/m3
Carbon Monoxide: 138.69 μg/m3
Nitrogen Dioxide: 4.22 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 114.4 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:56 AM
Sunset: 7:57 PM
Daylight: 14 hrs 1 mins
Moonrise: 12:50 AM
Moon Transit: 5:27 AM
Moonset: 10:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
3:18 PM - 5:48 PM

Minor Periods

9:40 AM - 11:10 AM
12:20 AM - 1:50 AM

Action Rating: 2 out of 5

Friday, May 8, 2026

Weather Forecast

Patchy rain nearby
74.7°F
41°F
57.4°F
40%
0.01 in
76%
0%
12.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.49 μg/m3
PM10: 11.91 μg/m3
Carbon Monoxide: 135.89 μg/m3
Nitrogen Dioxide: 4.23 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 99.88 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 12:56 AM
Sunset: 7:58 PM
Daylight: 14 hrs 3 mins
Moonrise: 1:26 AM
Moon Transit: 6:16 AM
Moonset: 11:12 AM
Moon Phase: Last Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

5:46 AM - 8:16 AM
4:05 PM - 6:35 PM

Minor Periods

10:42 AM - 12:12 AM
12:56 AM - 2:26 AM

Action Rating: 3 out of 5

Saturday, May 9, 2026

Weather Forecast

Patchy rain nearby
76.6°F
45.3°F
59.6°F
41%
0.02 in
88%
0%
10.5 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 5.33 μg/m3
PM10: 12.52 μg/m3
Carbon Monoxide: 143.57 μg/m3
Nitrogen Dioxide: 5.05 μg/m3
Sulphur Dioxide: 1.44 μg/m3
Ozone: 101.92 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 12:56 AM
Sunset: 7:59 PM
Daylight: 14 hrs 5 mins
Moonrise: 1:58 AM
Moon Transit: 7:02 AM
Moonset: 12:16 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:32 AM - 9:02 AM
4:51 PM - 7:21 PM

Minor Periods

11:46 AM - 1:16 PM
1:28 AM - 2:58 AM

Action Rating: 2 out of 5

Sunday, May 10, 2026

Weather Forecast

Patchy rain nearby
70.4°F
49.8°F
57.9°F
61%
0.14 in
89%
0%
12.5 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 4.49 μg/m3
PM10: 7.93 μg/m3
Carbon Monoxide: 138 μg/m3
Nitrogen Dioxide: 5.06 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 110.72 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 12:56 AM
Sunset: 8:00 PM
Daylight: 14 hrs 7 mins
Moonrise: 2:25 AM
Moon Transit: 7:47 AM
Moonset: 1:20 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
5:36 PM - 8:06 PM

Minor Periods

12:50 AM - 2:20 PM
1:55 AM - 3:25 AM

Action Rating: 3 out of 5

Monday, May 11, 2026

Weather Forecast

Sunny
85.9°F
46.1°F
65°F
33%
0 in
0%
0%
15.4 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 5.4 μg/m3
PM10: 11.54 μg/m3
Carbon Monoxide: 172.89 μg/m3
Nitrogen Dioxide: 7.36 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 90.31 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 12:56 AM
Sunset: 8:01 PM
Daylight: 14 hrs 9 mins
Moonrise: 2:50 AM
Moon Transit: 8:32 AM
Moonset: 2:25 PM
Moon Phase: Last Quarter
Moon Illumination: 16.9%

Best Times for Fishing or Hunting

Major Periods

8:02 AM - 10:32 AM
6:20 PM - 8:50 PM

Minor Periods

1:55 PM - 3:25 PM
2:20 AM - 3:50 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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