Water Temperature of the Big Thompson River in Estes Park, CO

Current Water Temperature

43.7°F

Measurement Time: Wednesday, May 13, 2026, 6:05 PM MDT

Temperature Locations

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Big Thompson River

Station Name: BIG THOMPSON BL MORAINE PARK NR ESTES PARK, CO
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 8,025 feet

Nearest Address:
Moraine Park Rd
Estes Park, CO 80517
Larimer County

GPS Coordinates: 40.3538611, -105.5841389

Nearby Water Temperatures

Fraser River, Tabernash, CO (27.7 mi)
Fraser River, Tabernash, CO (28.3 mi)
South Boulder Creek, Eldorado Springs, CO (32.5 mi)
South Platte River, Denver, CO (49.9 mi)
South Platte River, Englewood, CO (56.6 mi)
Yampa River, Steamboat Springs, CO (66.3 mi)
South Platte River, Roxborough Park, CO (68.7 mi)
Colorado River, Burns, CO (73.3 mi)
Eagle River, Edwards, CO (75.2 mi)
Encampment River, Encampment, WY (79.8 mi)
Eagle River, Gypsum, CO (87.7 mi)
Halfmoon Creek, Twin Lakes, CO (92.2 mi)
Arkansas River, Granite, CO (97.6 mi)
Roaring Fork River, Aspen, CO (103.3 mi)
Roaring Fork River, Basalt, CO (104.5 mi)

Weather for Estes Park, Colorado

Current Weather

57.7°F
Clear
Clear
56.3°F
45.1°F
36%
WSW 7.6 mph
16 mph
40.5°F
29.4°F
0 in
0%
9 mi
1022 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 65°F
L: 39°F
Sunny
Fri
H: 67°F
L: 35°F
Patchy rain nearby
Sat
H: 62°F
L: 36°F
Moderate rain
Sun
H: 53°F
L: 34°F
Patchy rain nearby
Mon
H: 51°F
L: 18°F

Air Quality

PM2.5: 3.65 μg/m3
PM10: 6.55 μg/m3
Carbon Monoxide: 130.85 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 108 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 12:58 AM
Sunset: 8:11 PM
Daylight: 14 hrs 24 mins
Moonrise: 4:05 AM
Moon Transit: 10:56 AM
Moonset: 6:02 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

8:43 PM - 11:13 PM
10:26 AM - 12:56 AM

Minor Periods

5:32 PM - 7:02 PM
3:35 AM - 5:05 AM

Action Rating: 2 out of 5

Red Flag Warning issued May 13 at 11:43AM MDT until May 14 at 9:00PM MDT by NWS Denver CO

Effective: Wed May 13, 2026, 11:43 AM
Expires: Thu May 14, 2026, 6:00 AM

The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM to 9 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 238, 242, 248, 250 and 251. * TIMING...From 11 AM to 9 PM MDT Thursday. * WINDS...Northwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and 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, May 14, 2026

Weather Forecast

Sunny
65.4°F
39°F
53.6°F
33%
0 in
0%
0%
23.7 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 3.63 μg/m3
PM10: 6.73 μg/m3
Carbon Monoxide: 141.89 μg/m3
Nitrogen Dioxide: 3.11 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 121.04 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 12:58 AM
Sunset: 8:11 PM
Daylight: 14 hrs 24 mins
Moonrise: 4:05 AM
Moon Transit: 10:56 AM
Moonset: 6:02 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

8:43 PM - 11:13 PM
10:26 AM - 12:56 AM

Minor Periods

5:32 PM - 7:02 PM
3:35 AM - 5:05 AM

Action Rating: 2 out of 5

Friday, May 15, 2026

Weather Forecast

Sunny
66.6°F
34.6°F
50.5°F
27%
0 in
0%
0%
18.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.59 μg/m3
PM10: 6.47 μg/m3
Carbon Monoxide: 133.13 μg/m3
Nitrogen Dioxide: 3.6 μg/m3
Sulphur Dioxide: 1.86 μg/m3
Ozone: 126.16 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 12:58 AM
Sunset: 8:12 PM
Daylight: 14 hrs 26 mins
Moonrise: 4:34 AM
Moon Transit: 11:50 AM
Moonset: 7:22 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:20 AM - 1:50 PM

Minor Periods

6:52 PM - 8:22 PM
4:04 AM - 5:34 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Patchy rain nearby
61.6°F
36.1°F
47.8°F
52%
0.09 in
88%
0%
8.3 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 4.63 μg/m3
PM10: 8.09 μg/m3
Carbon Monoxide: 139.37 μg/m3
Nitrogen Dioxide: 4.27 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 115.92 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:58 AM
Sunset: 8:13 PM
Daylight: 14 hrs 28 mins
Moonrise: 5:10 AM
Moon Transit: 12:50 AM
Moonset: 8:44 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:20 AM - 2:50 PM

Minor Periods

8:14 PM - 9:44 PM
4:40 AM - 6:10 AM

Action Rating: 5 out of 5

Sunday, May 17, 2026

Weather Forecast

Moderate rain
53.3°F
33.8°F
43.2°F
73%
0.35 in
89%
4%
10.7 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 7.55 μg/m3
PM10: 10.55 μg/m3
Carbon Monoxide: 134.85 μg/m3
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 136 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 12:58 AM
Sunset: 8:14 PM
Daylight: 14 hrs 30 mins
Moonrise: 5:56 AM
Moon Transit: 1:55 PM
Moonset: 10:02 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:25 PM - 3:55 PM

Minor Periods

9:32 PM - 11:02 PM
5:26 AM - 6:56 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Patchy rain nearby
51.2°F
18°F
34.8°F
66%
0.18 in
62%
13%
7.8 mph
1


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: 5:43 AM
Sun Transit: 12:58 AM
Sunset: 8:15 PM
Daylight: 14 hrs 32 mins
Moonrise: 6:54 AM
Moon Transit: 3:02 PM
Moonset: 11:10 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:32 PM - 5:02 PM

Minor Periods

12:00 AM - 12:00 AM
6:24 AM - 7:54 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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