Water Temperature of the Arkansas River in Portland, CO

Current Water Temperature

56.8°F

Measurement Time: Tuesday, March 24, 2026, 8:30 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

49.3°F
Clear
Clear
44.3°F
49.3°F
54%
W 6.7 mph
14.1 mph
44.3°F
33.2°F
0 in
1%
6 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 87°F
L: 46°F
Sunny
Thu
H: 84°F
L: 46°F
Partly Cloudy
Fri
H: 48°F
L: 35°F
Partly Cloudy
Sat
H: 78°F
L: 34°F
Sunny
Sun
H: 76°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 4.45 μg/m3
PM10: 5.85 μg/m3
Carbon Monoxide: 133.85 μg/m3
Nitrogen Dioxide: 4.45 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 51 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:05 PM
Sunset: 7:17 PM
Daylight: 12 hrs 21 mins
Moonrise: 11:26 AM
Moon Transit: 7:25 PM
Moonset: 2:23 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
6:55 PM - 9:25 PM

Minor Periods

10:56 AM - 12:26 AM
1:53 AM - 3:23 AM

Action Rating: 4 out of 5

Fire Weather Watch issued March 24 at 2:08PM MDT until March 25 at 7:00PM MDT by NWS Pueblo CO

Effective: Tue March 24, 2026, 2:08 PM
Expires: Wed March 25, 2026, 6:15 AM

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 221 AND 225... * AFFECTED AREA...Fire Weather Zones 221 and 225. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically.

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Red Flag Warning issued March 24 at 2:08PM MDT until March 25 at 7:00PM MDT by NWS Pueblo CO

Effective: Tue March 24, 2026, 2:08 PM
Expires: Wed March 25, 2026, 6:15 AM

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 222 AND 224... * AFFECTED AREA...Fire Weather Zones 222 and 224. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 7 percent. * 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Fire Weather Watch issued March 24 at 2:08PM MDT until March 26 at 8:00PM MDT by NWS Pueblo CO

Effective: Tue March 24, 2026, 2:08 PM
Expires: Wed March 25, 2026, 6:15 AM

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 221 AND 225... * AFFECTED AREA...Fire Weather Zones 221 and 225. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Elevated fire danger is expected. Fires will catch and spread rapidly and erratically.

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Fire Weather Watch issued March 24 at 2:08PM MDT until March 26 at 8:00PM MDT by NWS Pueblo CO

Effective: Tue March 24, 2026, 2:08 PM
Expires: Wed March 25, 2026, 6:15 AM

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 222 AND 224... * AFFECTED AREA...Fire Weather Zones 222 and 224. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 7 percent. * 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Red Flag Warning issued March 24 at 11:40PM MDT until March 25 at 7:00PM MDT by NWS Pueblo CO

Effective: Tue March 24, 2026, 11:40 PM
Expires: Wed March 25, 2026, 3:45 PM

* AFFECTED AREA...Fire Weather Zones 222 and 224. * WINDS...Southwest 15 to 25 mph on Wednesday. West winds 15 to 30 mph with gusts up to 40 mph on Thursday. * RELATIVE HUMIDITY...As low as 8 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Wednesday, March 25, 2026

Weather Forecast

Sunny
86.5°F
45.9°F
65.9°F
32%
0 in
0%
0%
8.1 mph
2.3


Air Quality

AQI: 1 - Good
PM2.5: 4.2 μg/m3
PM10: 5.89 μg/m3
Carbon Monoxide: 133.33 μg/m3
Nitrogen Dioxide: 3.8 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 68.32 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:05 PM
Sunset: 7:17 PM
Daylight: 12 hrs 21 mins
Moonrise: 11:26 AM
Moon Transit: 7:25 PM
Moonset: 2:23 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
6:55 PM - 9:25 PM

Minor Periods

10:56 AM - 12:26 AM
1:53 AM - 3:23 AM

Action Rating: 4 out of 5

Thursday, March 26, 2026

Weather Forecast

Sunny
83.5°F
46.2°F
64°F
33%
0 in
0%
0%
20.4 mph
2.1


Air Quality

AQI: 1 - Good
PM2.5: 3.92 μg/m3
PM10: 5.32 μg/m3
Carbon Monoxide: 136.81 μg/m3
Nitrogen Dioxide: 5.06 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 66.12 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:05 PM
Sunset: 7:18 PM
Daylight: 12 hrs 23 mins
Moonrise: 12:36 AM
Moon Transit: 8:24 PM
Moonset: 3:19 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

5:20 AM - 7:50 AM
7:54 PM - 10:24 PM

Minor Periods

12:06 AM - 1:36 PM
2:49 AM - 4:19 AM

Action Rating: 2 out of 5

Friday, March 27, 2026

Weather Forecast

Partly Cloudy
47.5°F
35.3°F
43.3°F
60%
0 in
0%
0%
13.4 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 6.23 μg/m3
PM10: 9.47 μg/m3
Carbon Monoxide: 141.21 μg/m3
Nitrogen Dioxide: 3.5 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 84.04 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:05 PM
Sunset: 7:19 PM
Daylight: 12 hrs 26 mins
Moonrise: 1:48 PM
Moon Transit: 9:20 PM
Moonset: 4:04 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

6:18 AM - 8:48 AM
8:50 PM - 11:20 PM

Minor Periods

1:18 PM - 2:48 PM
3:34 AM - 5:04 AM

Action Rating: 2 out of 5

Saturday, March 28, 2026

Weather Forecast

Partly Cloudy
78.4°F
34.3°F
56.4°F
31%
0 in
0%
0%
19.9 mph
1.8


Air Quality

AQI: 1 - Good
PM2.5: 9.47 μg/m3
PM10: 18.75 μg/m3
Carbon Monoxide: 140.92 μg/m3
Nitrogen Dioxide: 4.23 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 82.88 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:05 PM
Sunset: 7:20 PM
Daylight: 12 hrs 28 mins
Moonrise: 3:00 PM
Moon Transit: 10:11 PM
Moonset: 4:41 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

7:11 AM - 9:41 AM
12:00 AM - 12:00 AM

Minor Periods

2:30 PM - 4:00 PM
4:11 AM - 5:41 AM

Action Rating: 3 out of 5

Sunday, March 29, 2026

Weather Forecast

Sunny
75.5°F
48.3°F
58.7°F
30%
0 in
0%
0%
8.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 7.09 μg/m3
PM10: 9.7 μg/m3
Carbon Monoxide: 165.8 μg/m3
Nitrogen Dioxide: 7.16 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 66.77 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:04 PM
Sunset: 7:20 PM
Daylight: 12 hrs 31 mins
Moonrise: 4:09 PM
Moon Transit: 10:58 PM
Moonset: 5:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

8:00 AM - 10:30 AM
12:00 AM - 12:00 AM

Minor Periods

3:39 PM - 5:09 PM
4:40 AM - 6:10 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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