Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

41.7°F

Measurement Time: Saturday, December 27, 2025, 6:30 PM MST

Temperature Locations

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Local Points of Interest

Florence, CO; Penrose, CO

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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

41.3°F
Clear with periodic clouds
Conditions: Clear with periodic clouds
Humidity: 55%
Heat Index: 41.3°F
Feels Like: 33.8°F
Wind: W 7.5 mph
Wind Gusts: 18 mph
Wind Chill: 33.8°F
Air Pressure: 1008.09 millibars
Dew Point: 33.8°F
Chance of Precipitation: 0%
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 10 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Sun
H: 42°F
L: 19°F
Sunny
Mon
H: 44°F
L: 15°F
Sunny
Tue
H: 54°F
L: 23°F
Sunny
Wed
H: 58°F
L: 27°F
Sunny
Thu
H: 62°F
L: 35°F

Air Quality

PM2.5: 2.15 μg/m3
PM10: 2.35 μg/m3
Carbon Monoxide: 161.85 μg/m3
Nitrogen Dioxide: 3.65 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 88 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:01 AM
Sunset: 4:48 PM
Daylight: 9 hrs 31 mins
Moonrise: 12:05 AM
Moon Transit: 6:52 PM
Moonset: 12:42 AM
Moon Phase: First Quarter
Moon Illumination: 63.0%

Best Times for Fishing or Hunting

Major Periods

3:54 AM - 6:24 AM
6:22 PM - 8:52 PM

Minor Periods

11:35 AM - 1:05 PM
12:12 AM - 1:42 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued December 27 at 6:05PM MST until December 28 at 8:00PM MST by NWS Pueblo CO

Effective: Sat December 27, 2025, 6:05 PM
Expires: Sun December 28, 2025, 2:15 AM

* WHAT...Snow expected. Total snow accumulations between 3 and 6 inches. Winds gusting as high as 50 mph. * WHERE...Northern Sangre de Cristo Mountains Above 11000 Feet and Southern Sangre de Cristo Mountains Above 11000 Feet. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Travel could be very difficult with snow, blowing snow, and degraded visibilities, especially over mountain passes. Gusty winds could bring down tree branches and power lines.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
Sunday, December 28, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 33.2°F
Average Humidity: 39%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 1.95 μg/m3
PM10: 2.22 μg/m3
Carbon Monoxide: 155.05 μg/m3
Nitrogen Dioxide: 3.06 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 96.56 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:01 AM
Sunset: 4:48 PM
Daylight: 9 hrs 31 mins
Moonrise: 12:05 AM
Moon Transit: 6:52 PM
Moonset: 12:42 AM
Moon Phase: First Quarter
Moon Illumination: 63.0%

Best Times for Fishing or Hunting

Major Periods

3:54 AM - 6:24 AM
6:22 PM - 8:52 PM

Minor Periods

11:35 AM - 1:05 PM
12:12 AM - 1:42 AM

Action Rating: 2 out of 5

Monday, December 29, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 26°F
Average Humidity: 30%
Chance of Rain: 0%
Wind: 5.4 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 3 μg/m3
PM10: 3.23 μg/m3
Carbon Monoxide: 177.09 μg/m3
Nitrogen Dioxide: 6.94 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 89.12 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:02 AM
Sunset: 4:48 PM
Daylight: 9 hrs 32 mins
Moonrise: 12:35 AM
Moon Transit: 7:45 PM
Moonset: 1:53 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%

Best Times for Fishing or Hunting

Major Periods

4:43 AM - 7:13 AM
7:15 PM - 9:45 PM

Minor Periods

12:05 AM - 1:35 PM
1:23 AM - 2:53 AM

Action Rating: 3 out of 5

Tuesday, December 30, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 33.5°F
Average Humidity: 34%
Chance of Rain: 0%
Wind: 7.8 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 3.1 μg/m3
PM10: 3.36 μg/m3
Carbon Monoxide: 186.57 μg/m3
Nitrogen Dioxide: 8.17 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 73.64 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:02 AM
Sunset: 4:49 PM
Daylight: 9 hrs 32 mins
Moonrise: 1:10 PM
Moon Transit: 8:42 PM
Moonset: 3:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.8%

Best Times for Fishing or Hunting

Major Periods

5:38 AM - 8:08 AM
8:12 PM - 10:42 PM

Minor Periods

12:40 AM - 2:10 PM
2:38 AM - 4:08 AM

Action Rating: 2 out of 5

Wednesday, December 31, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 37.7°F
Average Humidity: 33%
Chance of Rain: 0%
Wind: 6.9 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 3.9 μg/m3
PM10: 4.27 μg/m3
Carbon Monoxide: 204.21 μg/m3
Nitrogen Dioxide: 9.62 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 67.85 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:03 AM
Sunset: 4:50 PM
Daylight: 9 hrs 33 mins
Moonrise: 1:55 PM
Moon Transit: 9:45 PM
Moonset: 4:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.5%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
9:15 PM - 11:45 PM

Minor Periods

1:25 PM - 2:55 PM
3:57 AM - 5:27 AM

Action Rating: 2 out of 5

Thursday, January 1, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 40.5°F
Average Humidity: 35%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 0

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 12:03 AM
Sunset: 4:51 PM
Daylight: 9 hrs 34 mins
Moonrise: 2:51 PM
Moon Transit: 10:51 PM
Moonset: 5:43 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

7:42 AM - 10:12 AM
12:00 AM - 12:00 AM

Minor Periods

2:21 PM - 3:51 PM
5:13 AM - 6:43 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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