Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

76.1°F

Measurement Time: Friday, July 10, 2026, 7:30 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

93.1°F
Sunny
Sunny
78.8°F
89.5°F
12%
ESE 12.5 mph
14.4 mph
93.1°F
32.4°F
0 in
18%
6 mi
1007 mbar
7.2

Five Day Weather Forecast

Sunny
Fri
H: 93°F
L: 54°F
Sunny
Sat
H: 93°F
L: 55°F
Sunny
Sun
H: 92°F
L: 60°F
Sunny
Mon
H: 93°F
L: 58°F
Sunny
Tue
H: 92°F
L: 57°F

Air Quality

AQI: 2 - Moderate
PM2.5: 24.1 μg/m3
PM10: 27.9 μg/m3
Carbon Monoxide: 171 μg/m3
Nitrogen Dioxide: 1.9 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 154 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:05 PM
Sunset: 8:26 PM
Daylight: 14 hrs 41 mins
Moonrise: 1:37 AM
Moon Transit: 9:12 AM
Moonset: 4:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

8:42 AM - 11:12 AM
7:08 PM - 9:38 PM

Minor Periods

4:29 PM - 5:59 PM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Flash Flood Watch issued July 10 at 1:54AM MDT until July 10 at 8:00PM MDT by NWS Pueblo CO

Effective: Fri July 10, 2026, 1:54 AM
Expires: Fri July 10, 2026, 10:00 AM

* WHAT...Flash flooding and debris flows caused by excessive rainfall will be possible over the Aspen Acres burn scar. * WHERE...The Aspen Acres Burn Scar in Pueblo County. * WHEN...From noon MDT today through 8 PM this evening. * IMPACTS...Heavy rainfall over the Aspen Acres burn scar will be possible during the period of the watch. Residents near the Aspen Acres burn scar should prepare for potential debris flow. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting the potential for heavy rainfall over the burn scar, which may lead to flash flooding and debris flows. - Some locations that may experience flash flooding include... Locations near Wetmore and Colorado City. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


Flash Flood Watch issued July 10 at 9:32AM MDT until July 10 at 8:00PM MDT by NWS Pueblo CO

Effective: Fri July 10, 2026, 9:32 AM
Expires: Fri July 10, 2026, 8:00 PM

* WHAT...Flash flooding and debris flows caused by excessive rainfall will be possible over the Aspen Acres burn scar. * WHERE...The Aspen Acres Burn Scar in Pueblo County. * WHEN...Until 8 PM MDT this evening. * IMPACTS...Heavy rainfall over the Aspen Acres burn scar will be possible during the period of the watch. Residents near the Aspen Acres burn scar should prepare for potential debris flow. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting the potential for heavy rainfall over the burn scar, which may lead to flash flooding and debris flows. - Some locations that may experience flash flooding include... Locations near Wetmore and Colorado City. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


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

Effective: Fri July 10, 2026, 9:10 AM
Expires: Sat July 11, 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...Pueblo and Custer Counties. Locations include, but are not limited to Pueblo and Westcliffe. WHEN...900 AM Friday July 10 to 900 AM Saturday July 11 IMPACTS...Moderate to heavy smoke from the Aspen Acres wildfire will be possible within the advisory area through at least Saturday 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.


Flash Flood Watch issued July 10 at 1:54AM MDT until July 10 at 8:00PM MDT by NWS Pueblo CO

Effective: Fri July 10, 2026, 1:54 AM
Expires: Fri July 10, 2026, 10:00 AM

* WHAT...Flash flooding and debris flows caused by excessive rainfall will be possible over the Aspen Acres burn scar. * WHERE...The Aspen Acres Burn Scar including the Wet Mountains Above 6300 Feet. * WHEN...From noon MDT today through 8 PM this evening. * IMPACTS...Heavy rainfall over the Aspen Acres burn scar could occur during the period of the watch. Residents near the Aspen Acres burn scar should prepare for potential debris flow. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting the potential for heavy rainfall over the burn scar, which may lead to flash flooding and debris flows. - Some locations that may experience flash flooding include... Rye, San Isabel, and Beulah. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


Flash Flood Watch issued July 10 at 9:32AM MDT until July 10 at 8:00PM MDT by NWS Pueblo CO

Effective: Fri July 10, 2026, 9:32 AM
Expires: Fri July 10, 2026, 8:00 PM

* WHAT...Flash flooding and debris flows caused by excessive rainfall will be possible over the Aspen Acres burn scar. * WHERE...The Aspen Acres Burn Scar including the Wet Mountains Above 6300 Feet. * WHEN...Until 8 PM MDT this evening. * IMPACTS...Heavy rainfall over the Aspen Acres burn scar could occur during the period of the watch. Residents near the Aspen Acres burn scar should prepare for potential debris flow. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding of low-lying areas, street flooding, and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting the potential for heavy rainfall over the burn scar, which may lead to flash flooding and debris flows. - Some locations that may experience flash flooding include... Rye, San Isabel, and Beulah. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Friday, July 10, 2026

Weather Forecast

Sunny
93.2°F
53.9°F
72.6°F
38%
0.05 in
57%
0%
19.7 mph
11


Air Quality

AQI: 2 - Moderate
PM2.5: 27.62 μg/m3
PM10: 30.62 μg/m3
Carbon Monoxide: 197.38 μg/m3
Nitrogen Dioxide: 8.69 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 106.83 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:05 PM
Sunset: 8:26 PM
Daylight: 14 hrs 41 mins
Moonrise: 1:37 AM
Moon Transit: 9:12 AM
Moonset: 4:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

8:42 AM - 11:12 AM
7:08 PM - 9:38 PM

Minor Periods

4:29 PM - 5:59 PM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Saturday, July 11, 2026

Weather Forecast

Sunny
93.3°F
54.8°F
74.1°F
43%
0 in
1%
0%
19 mph
11.8


Air Quality

AQI: 2 - Moderate
PM2.5: 30.29 μg/m3
PM10: 33.49 μg/m3
Carbon Monoxide: 151.04 μg/m3
Nitrogen Dioxide: 7.37 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 113.08 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:05 PM
Sunset: 8:25 PM
Daylight: 14 hrs 40 mins
Moonrise: 2:24 AM
Moon Transit: 10:15 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

8:12 PM - 10:42 PM
9:45 AM - 12:15 AM

Minor Periods

5:44 PM - 7:14 PM
1:54 AM - 3:24 AM

Action Rating: 3 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
92.3°F
59.9°F
76.5°F
33%
0 in
1%
0%
18.8 mph
12.2


Air Quality

AQI: 2 - Moderate
PM2.5: 25.84 μg/m3
PM10: 29.45 μg/m3
Carbon Monoxide: 127.92 μg/m3
Nitrogen Dioxide: 7.88 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 109.67 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:05 PM
Sunset: 8:25 PM
Daylight: 14 hrs 39 mins
Moonrise: 3:22 AM
Moon Transit: 11:22 AM
Moonset: 7:21 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

9:20 PM - 11:50 PM
10:52 AM - 1:22 PM

Minor Periods

6:51 PM - 8:21 PM
2:52 AM - 4:22 AM

Action Rating: 3 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
92.6°F
57.7°F
75.7°F
31%
0 in
0%
0%
17.7 mph
12


Air Quality

AQI: 2 - Moderate
PM2.5: 22.9 μg/m3
PM10: 28.38 μg/m3
Carbon Monoxide: 151.01 μg/m3
Nitrogen Dioxide: 7.37 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 101.63 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:05 PM
Sunset: 8:25 PM
Daylight: 14 hrs 37 mins
Moonrise: 4:32 AM
Moon Transit: 12:28 AM
Moonset: 8:19 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:58 AM - 2:28 PM

Minor Periods

7:49 PM - 9:19 PM
4:02 AM - 5:32 AM

Action Rating: 4 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
91.9°F
56.7°F
74.8°F
34%
0 in
1%
0%
19 mph
8


Air Quality

AQI: 2 - Moderate
PM2.5: 24.47 μg/m3
PM10: 32.57 μg/m3
Carbon Monoxide: 303.57 μg/m3
Nitrogen Dioxide: 13.99 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 48.14 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:06 PM
Sunset: 8:24 PM
Daylight: 14 hrs 36 mins
Moonrise: 5:49 AM
Moon Transit: 1:32 PM
Moonset: 9:04 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:02 PM - 3:32 PM

Minor Periods

8:34 PM - 10:04 PM
5:19 AM - 6:49 AM

Action Rating: 5 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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