Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

70.2°F

Measurement Time: Wednesday, July 1, 2026, 7:30 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

56.8°F
Clear
Clear
46.8°F
56.8°F
14%
WNW 5.8 mph
12.2 mph
55.9°F
8.5°F
0 in
0%
6 mi
1011 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 93°F
L: 54°F
Sunny
Fri
H: 94°F
L: 56°F
Sunny
Sat
H: 95°F
L: 59°F
Smoky haze
Sun
H: 93°F
L: 58°F
Smoky haze
Mon
H: 89°F
L: 53°F

Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 23.5 μg/m3
PM10: 24.3 μg/m3
Carbon Monoxide: 118 μg/m3
Nitrogen Dioxide: 15.3 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 51 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:04 PM
Sunset: 8:28 PM
Daylight: 14 hrs 48 mins
Moonrise: 10:30 PM
Moon Transit: 2:57 AM
Moonset: 8:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
12:46 AM - 3:16 PM

Minor Periods

10:00 PM - 11:30 PM
7:30 AM - 9:00 AM

Action Rating: 2 out of 5

Air Quality Alert issued July 1 at 9:10AM MDT by NWS Pueblo CO

Effective: Wed July 1, 2026, 9:10 AM
Expires: Thu July 2, 2026, 9:00 AM

The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Fremont, Teller, Huerfano, Pueblo, El Paso, Elbert, and eastern Custer Counties. Locations include, but are not limited to Canon City, Cripple Creek, Walsenburg, Beulah, Rye, Pueblo, Colorado Springs, and Kiowa. WHEN...900 AM Wednesday July 01 to 900 AM Thursday July 02 IMPACTS...Areas downwind of the Aspen Acres and Sheep Head Fires could have periods of moderate to heavy smoke through at least Thursday morning. HEALTH INFORMATION...Public Health Recommendations: If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. If visibility is less than 5 miles in smoke in your neighborhood, smoke has reached levels that are unhealthy.


Red Flag Warning issued July 1 at 9:54PM MDT until July 3 at 12:00AM MDT by NWS Pueblo CO

Effective: Wed July 1, 2026, 9:54 PM
Expires: Thu July 2, 2026, 2:00 PM

* AFFECTED AREA...Fire Weather Zones 226, 227, 228 and 230. * WINDS...Southwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 5 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution and avoid 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 July 1 at 9:54PM MDT until July 1 at 10:00PM MDT by NWS Pueblo CO

Effective: Wed July 1, 2026, 9:54 PM
Expires: Thu July 2, 2026, 2:00 PM

* AFFECTED AREA...Fire Weather Zones 226, 227, 228 and 230. * WINDS...Southwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 5 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution and avoid 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 July 2 at 12:40AM MDT until July 3 at 12:00AM MDT by NWS Pueblo CO

Effective: Thu July 2, 2026, 12:40 AM
Expires: Thu July 2, 2026, 4:45 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 10 AM Friday to midnight MDT Friday night. * AFFECTED AREA...Fire Weather Zones 226, 227, 228 and 230. * WINDS...Southwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 4 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution and avoid any activities which could start a wildfire.

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 July 2 at 12:40AM MDT until July 4 at 12:00AM MDT by NWS Pueblo CO

Effective: Thu July 2, 2026, 12:40 AM
Expires: Thu July 2, 2026, 4:45 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 10 AM Friday to midnight MDT Friday night. * AFFECTED AREA...Fire Weather Zones 226, 227, 228 and 230. * WINDS...Southwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 4 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution and avoid any activities which could start a wildfire.

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.
Thursday, July 2, 2026

Weather Forecast

Sunny
93.4°F
53.5°F
74°F
10%
0 in
0%
0%
21.9 mph
10.6


Air Quality

AQI: 2 - Moderate
PM2.5: 17.41 μg/m3
PM10: 18.37 μg/m3
Carbon Monoxide: 113.04 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 94.88 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:04 PM
Sunset: 8:28 PM
Daylight: 14 hrs 48 mins
Moonrise: 10:30 PM
Moon Transit: 2:57 AM
Moonset: 8:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
12:46 AM - 3:16 PM

Minor Periods

10:00 PM - 11:30 PM
7:30 AM - 9:00 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
93.7°F
56.1°F
75.5°F
9%
0 in
1%
0%
10.7 mph
9.8


Air Quality

AQI: 2 - Moderate
PM2.5: 20.01 μg/m3
PM10: 21.44 μg/m3
Carbon Monoxide: 123.75 μg/m3
Nitrogen Dioxide: 8.99 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 92.58 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:04 PM
Sunset: 8:28 PM
Daylight: 14 hrs 47 mins
Moonrise: 10:56 PM
Moon Transit: 3:42 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
1:30 PM - 4:00 PM

Minor Periods

10:26 PM - 11:56 PM
8:33 AM - 10:03 AM

Action Rating: 3 out of 5

Saturday, July 4, 2026

Weather Forecast

Sunny
95.4°F
58.6°F
75.7°F
13%
0 in
2%
0%
13 mph
7.5


Air Quality

AQI: 2 - Moderate
PM2.5: 31.99 μg/m3
PM10: 34.25 μg/m3
Carbon Monoxide: 152 μg/m3
Nitrogen Dioxide: 10.45 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 114.25 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:04 PM
Sunset: 8:28 PM
Daylight: 14 hrs 46 mins
Moonrise: 11:19 PM
Moon Transit: 4:26 AM
Moonset: 10:05 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
2:13 PM - 4:43 PM

Minor Periods

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

Action Rating: 2 out of 5

Sunday, July 5, 2026

Weather Forecast

Smoky haze
92.7°F
57.7°F
74.4°F
30%
0.02 in
36%
0%
18.8 mph
5.3


Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 40.66 μg/m3
PM10: 46.06 μg/m3
Carbon Monoxide: 222.18 μg/m3
Nitrogen Dioxide: 13.13 μg/m3
Sulphur Dioxide: 2.21 μg/m3
Ozone: 110.46 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:04 PM
Sunset: 8:27 PM
Daylight: 14 hrs 45 mins
Moonrise: 12:19 AM
Moon Transit: 5:08 AM
Moonset: 11:08 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

4:38 AM - 7:08 AM
2:56 PM - 5:26 PM

Minor Periods

10:38 AM - 12:08 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 6, 2026

Weather Forecast

Smoky haze
89.3°F
52.5°F
71.3°F
45%
0.02 in
36%
0%
15.7 mph
8


Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 48.39 μg/m3
PM10: 55.07 μg/m3
Carbon Monoxide: 563.14 μg/m3
Nitrogen Dioxide: 19.57 μg/m3
Sulphur Dioxide: 2.61 μg/m3
Ozone: 54.14 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:04 PM
Sunset: 8:27 PM
Daylight: 14 hrs 45 mins
Moonrise: 12:42 AM
Moon Transit: 5:51 AM
Moonset: 12:12 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

5:21 AM - 7:51 AM
10:45 AM - 1:15 PM

Minor Periods

11:42 AM - 1:12 PM
12:00 AM - 12:00 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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