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

Current Water Temperature

39.0°F

Measurement Time: Thursday, April 23, 2026, 4:35 AM 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

34.2°F
Overcast
Overcast
20.4°F
39.1°F
51%
W 30.4 mph
35 mph
27.5°F
8.5°F
0 in
100%
9 mi
1013 mbar
4.1

Five Day Weather Forecast

Sunny
Thu
H: 45°F
L: 30°F
Sunny
Fri
H: 53°F
L: 22°F
Moderate rain
Sat
H: 48°F
L: 20°F
Moderate rain
Sun
H: 43°F
L: 27°F
Patchy rain nearby
Mon
H: 44°F
L: 22°F

Air Quality

AQI: 1 - Good
PM2.5: 2.15 μg/m3
PM10: 6.05 μg/m3
Carbon Monoxide: 144.85 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 120 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 1:00 PM
Sunset: 7:50 PM
Daylight: 13 hrs 37 mins
Moonrise: 11:35 AM
Moon Transit: 7:18 PM
Moonset: 2:12 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

4:11 AM - 6:41 AM
6:48 PM - 9:18 PM

Minor Periods

11:05 AM - 12:35 AM
1:42 AM - 3:12 AM

Action Rating: 3 out of 5

Red Flag Warning issued April 22 at 11:51PM MDT until April 23 at 7:00PM MDT by NWS Denver CO

Effective: Wed April 22, 2026, 11:51 PM
Expires: Thu April 23, 2026, 1:30 PM

* AFFECTED AREA...Fire Weather Zones 216, 238, 239, 240, 241, 242, 243, 244, 245, 246, 248, 249, 250 and 251. * TIMING...From 11 AM to 7 PM MDT Thursday. * WINDS...Northwest 15 to 25 mph with gusts up to 40 mph, with gusts up to 50 mph across the southern Front Range Foothills and South Park through early Thursday afternoon.. * RELATIVE HUMIDITY...As low as 12 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.


Red Flag Warning issued April 23 at 5:33AM MDT until April 23 at 7:00PM MDT by NWS Denver CO

Effective: Thu April 23, 2026, 5:33 AM
Expires: Thu April 23, 2026, 1:45 PM

The National Weather Service in Denver has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Friday morning through Friday evening. * AFFECTED AREA...Fire Weather Zones 216, 238, 239, 240, 241, 242, 243, 244, 245, 246 and 249. * TIMING...For the Red Flag Warning, from 11 AM this morning to 7 PM MDT this evening. For the Fire Weather Watch, from Friday morning through Friday evening. * WINDS...West 15 to 25 mph with gusts up to 40 mph today. On Friday west 15 to 25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent today. As low as 7 percent on Friday. * 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. 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 April 23 at 5:33AM MDT until April 24 at 9:00PM MDT by NWS Denver CO

Effective: Thu April 23, 2026, 5:33 AM
Expires: Thu April 23, 2026, 1:45 PM

The National Weather Service in Denver has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Friday morning through Friday evening. * AFFECTED AREA...Fire Weather Zones 216, 238, 239, 240, 241, 242, 243, 244, 245, 246 and 249. * TIMING...For the Red Flag Warning, from 11 AM this morning to 7 PM MDT this evening. For the Fire Weather Watch, from Friday morning through Friday evening. * WINDS...West 15 to 25 mph with gusts up to 40 mph today. On Friday west 15 to 25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent today. As low as 7 percent on Friday. * 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. 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 April 23 at 5:33AM MDT until April 24 at 9:00PM MDT by NWS Denver CO

Effective: Thu April 23, 2026, 5:33 AM
Expires: Thu April 23, 2026, 1:45 PM

The National Weather Service in Denver has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Friday morning through Friday evening. * AFFECTED AREA...Fire Weather Zone 215. * TIMING...From Friday morning through Friday evening. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 12 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 Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Thursday, April 23, 2026

Weather Forecast

Sunny
45°F
29.5°F
36.5°F
37%
0 in
0%
0%
30.4 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 3.36 μg/m3
PM10: 11.17 μg/m3
Carbon Monoxide: 139.25 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 131.84 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 1:00 PM
Sunset: 7:50 PM
Daylight: 13 hrs 37 mins
Moonrise: 11:35 AM
Moon Transit: 7:18 PM
Moonset: 2:12 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

4:11 AM - 6:41 AM
6:48 PM - 9:18 PM

Minor Periods

11:05 AM - 12:35 AM
1:42 AM - 3:12 AM

Action Rating: 3 out of 5

Friday, April 24, 2026

Weather Forecast

Sunny
52.7°F
22°F
39.4°F
32%
0 in
0%
3%
19.9 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 2.51 μg/m3
PM10: 8.47 μg/m3
Carbon Monoxide: 140.73 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 110.88 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:00 PM
Sunset: 7:51 PM
Daylight: 13 hrs 40 mins
Moonrise: 12:50 AM
Moon Transit: 8:11 PM
Moonset: 2:50 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

5:06 AM - 7:36 AM
7:41 PM - 10:11 PM

Minor Periods

12:20 AM - 1:50 PM
2:20 AM - 3:50 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Moderate rain
48.3°F
20.2°F
35.1°F
62%
0.28 in
89%
18%
6.7 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 4.27 μg/m3
PM10: 11.29 μg/m3
Carbon Monoxide: 153.41 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 104.44 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:00 PM
Sunset: 7:52 PM
Daylight: 13 hrs 42 mins
Moonrise: 2:00 PM
Moon Transit: 8:58 PM
Moonset: 3:20 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

5:56 AM - 8:26 AM
8:28 PM - 10:58 PM

Minor Periods

1:30 PM - 3:00 PM
2:50 AM - 4:20 AM

Action Rating: 3 out of 5

Sunday, April 26, 2026

Weather Forecast

Moderate rain
43.3°F
27.1°F
35.7°F
85%
0.31 in
84%
24%
5.6 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 5.13 μg/m3
PM10: 8.4 μg/m3
Carbon Monoxide: 153.46 μg/m3
Nitrogen Dioxide: 4.02 μg/m3
Sulphur Dioxide: 1.44 μg/m3
Ozone: 112.32 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:00 PM
Sunset: 7:53 PM
Daylight: 13 hrs 45 mins
Moonrise: 3:08 PM
Moon Transit: 9:43 PM
Moonset: 3:45 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

6:42 AM - 9:12 AM
9:13 PM - 11:43 PM

Minor Periods

2:38 PM - 4:08 PM
3:15 AM - 4:45 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Patchy rain nearby
43.8°F
21.6°F
32.7°F
73%
0.19 in
87%
36%
9.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.54 μg/m3
PM10: 4.6 μg/m3
Carbon Monoxide: 146.54 μg/m3
Nitrogen Dioxide: 4.95 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 104.46 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:00 PM
Sunset: 7:54 PM
Daylight: 13 hrs 47 mins
Moonrise: 4:13 PM
Moon Transit: 10:25 PM
Moonset: 4:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

7:26 AM - 9:56 AM
12:00 AM - 12:00 AM

Minor Periods

3:43 PM - 5:13 PM
3:37 AM - 5:07 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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