Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

46.0°F

Measurement Time: Monday, March 2, 2026, 3:30 AM MST

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

55.2°F
Partly cloudy
Partly cloudy
55.1°F
59.8°F
29%
WSW 3.6 mph
4.1 mph
58.7°F
29.3°F
0 in
75%
9 mi
1014 mbar
4.7

Five Day Weather Forecast

Sunny
Mon
H: 71°F
L: 30°F
Sunny
Tue
H: 60°F
L: 36°F
Sunny
Wed
H: 64°F
L: 25°F
Sunny
Thu
H: 64°F
L: 27°F
Sunny
Fri
H: 56°F
L: 34°F

Air Quality

AQI: 1 - Good
PM2.5: 4.15 μg/m3
PM10: 5.05 μg/m3
Carbon Monoxide: 126.85 μg/m3
Nitrogen Dioxide: 4.35 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 12:12 AM
Sunset: 5:54 PM
Daylight: 11 hrs 24 mins
Moonrise: 5:21 PM
Moon Transit: 12:00 AM
Moonset: 6:08 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:05 AM - 11:35 AM

Minor Periods

4:51 PM - 6:21 PM
5:38 AM - 7:08 AM

Action Rating: 4 out of 5

Red Flag Warning issued March 2 at 5:15AM MST until March 2 at 7:00PM MST by NWS Pueblo CO

Effective: Mon March 2, 2026, 5:15 AM
Expires: Mon March 2, 2026, 7:00 PM

The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 11 AM this morning to 7 PM MST this evening. * AFFECTED AREA...Fire Weather Zone 222. * TIMING...From 11 AM this morning to 7 PM MST this evening. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 13 percent. * TEMPERATURES...Up to 71. * 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.
Monday, March 2, 2026

Weather Forecast

Sunny
70.9°F
29.5°F
49.8°F
45%
0 in
0%
0%
18.6 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 6.42 μg/m3
PM10: 10.47 μg/m3
Carbon Monoxide: 158.33 μg/m3
Nitrogen Dioxide: 6.19 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 78.88 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 12:12 AM
Sunset: 5:54 PM
Daylight: 11 hrs 24 mins
Moonrise: 5:21 PM
Moon Transit: 12:00 AM
Moonset: 6:08 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:05 AM - 11:35 AM

Minor Periods

4:51 PM - 6:21 PM
5:38 AM - 7:08 AM

Action Rating: 4 out of 5

Tuesday, March 3, 2026

Weather Forecast

Sunny
59.9°F
36°F
46.1°F
52%
0 in
0%
0%
18.1 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 4.69 μg/m3
PM10: 5.72 μg/m3
Carbon Monoxide: 133.21 μg/m3
Nitrogen Dioxide: 4.99 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 92.44 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 12:11 AM
Sunset: 5:55 PM
Daylight: 11 hrs 26 mins
Moonrise: 6:28 PM
Moon Transit: 12:03 AM
Moonset: 6:33 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:51 AM - 12:21 AM

Minor Periods

5:58 PM - 7:28 PM
6:03 AM - 7:33 AM

Action Rating: 5 out of 5

Wednesday, March 4, 2026

Weather Forecast

Sunny
64.2°F
25.3°F
44.7°F
55%
0 in
0%
0%
6.7 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 3.81 μg/m3
PM10: 4.21 μg/m3
Carbon Monoxide: 147.77 μg/m3
Nitrogen Dioxide: 3.59 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 96.56 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 12:11 AM
Sunset: 5:56 PM
Daylight: 11 hrs 29 mins
Moonrise: 7:32 PM
Moon Transit: 12:47 AM
Moonset: 6:56 AM
Moon Phase: Full
Moon Illumination: 98.2%

Best Times for Fishing or Hunting

Major Periods

12:17 AM - 2:47 AM
10:35 AM - 1:05 PM

Minor Periods

7:02 PM - 8:32 PM
6:26 AM - 7:56 AM

Action Rating: 4 out of 5

Thursday, March 5, 2026

Weather Forecast

Sunny
63.9°F
27.3°F
45°F
35%
0 in
0%
0%
10.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.49 μg/m3
PM10: 5.28 μg/m3
Carbon Monoxide: 139.95 μg/m3
Nitrogen Dioxide: 5.81 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 102.4 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 12:11 AM
Sunset: 5:57 PM
Daylight: 11 hrs 31 mins
Moonrise: 8:36 PM
Moon Transit: 1:30 AM
Moonset: 7:18 AM
Moon Phase: Full
Moon Illumination: 94.0%

Best Times for Fishing or Hunting

Major Periods

1:00 AM - 3:30 AM
11:18 AM - 1:48 PM

Minor Periods

8:06 PM - 9:36 PM
6:48 AM - 8:18 AM

Action Rating: 4 out of 5

Friday, March 6, 2026

Weather Forecast

Sunny
56.4°F
34.4°F
45.7°F
28%
0 in
0%
0%
21.5 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 9.35 μg/m3
Carbon Monoxide: 151.33 μg/m3
Nitrogen Dioxide: 5.14 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 101.77 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 12:11 AM
Sunset: 5:58 PM
Daylight: 11 hrs 34 mins
Moonrise: 9:38 PM
Moon Transit: 2:13 AM
Moonset: 7:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.6%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
12:00 AM - 2:30 PM

Minor Periods

9:08 PM - 10:38 PM
7:12 AM - 8:42 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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