Water Temperature of the Arkansas River in Hasty, CO

Current Water Temperature

49.3°F 9.6°C
Frigid Dangerously Cold
49.3°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Severe hypothermia and cold water shock risk. Unprotected swimming causes rapid loss of dexterity in under 5 minutes.

Measurement Time: Sunday, November 15, 2026, 1:00 AM MST

Temperature Locations

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Local Points of Interest

John Martin Reservoir; Lake Hasty

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Arkansas River

Station Name: ARKANSAS RIVER BELOW JOHN MARTIN RESERVOIR, CO.
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 3,763 feet

Nearest Address:
John Martin Reservoir State Park
Hasty, CO 81044
Bent County

GPS Coordinates: 38.06639635, -102.9324228

Nearby Water Temperatures

Arkansas River, Las Animas, CO (15.7 mi)
Arkansas River, Rocky Ford, CO (41 mi)
Purgatoire River, Kim, CO (47.5 mi)
Arkansas River, Manzanola, CO (53.4 mi)
Purgatoire River, Trinchera, CO (72.1 mi)
Arkansas River, Avondale, CO (80.7 mi)
Arkansas River, Pueblo, CO (91.7 mi)
Arkansas River, Pueblo, CO (91.8 mi)
Fountain Creek, Pueblo, CO (91.9 mi)
Fountain Creek, Fountain, CO (101.2 mi)
Arkansas River, Portland, CO (115.3 mi)
Arkansas River, Cañon City, CO (128.7 mi)
South Platte River, Roxborough Park, CO (151.6 mi)
South Platte River, Englewood, CO (156.9 mi)
South Platte River, Denver, CO (162.5 mi)

Weather for Hasty, Colorado

Current Weather

41°F
Overcast
Conditions: Overcast
Humidity: 90%
Feels Like: 36.3°F
Wind: SE 4.4 mph
Wind Gusts: 6.7 mph
Pressure: 30.18 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 8.6 mi
UV Index: 0.8

Five-Day Weather Forecast

Fog
Sun
H: 46°F
L: 39°F
Overcast
Mon
H: 57°F
L: 37°F
Fog
Tue
H: 70°F
L: 36°F
Overcast
Wed
H: 64°F
L: 48°F
Overcast
Thu
H: 62°F
L: 40°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
0.5 μg/m³
Good
PM10
0.5 μg/m³
Good
Ozone (O3)
50 μg/m³
Photochemical
NO2
1.5 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
133 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 7m daylight
Sunrise 6:33 AM
Solar Noon 11:36 AM
Sunset 4:40 PM
Moon
Waxing Crescent • 31%
Moonrise 11:52 AM
Transit 4:51 PM
Moonset 9:57 PM

Best Times for Fishing or Hunting

Major Periods

3:58 AM - 6:28 AM
4:21 PM - 6:51 PM

Minor Periods

11:22 AM - 12:52 PM
9:27 PM - 10:57 PM
Action Rating:
Very Good 4/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Fog
Average Temperature: 42.3°F
Average Humidity: 90%
Chance of Rain: 6%
Wind: 10.1 mph
UV Index: 2.2

Air Quality

EPA Index 1 • Good
PM2.5
1 μg/m³
Good
PM10
3.2 μg/m³
Good
Ozone (O3)
51.6 μg/m³
Photochemical
NO2
1.6 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
133.5 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 7m daylight
Sunrise 6:33 AM
Solar Noon 11:36 AM
Sunset 4:40 PM
Moon
Waxing Crescent • 31%
Moonrise 11:52 AM
Transit 4:51 PM
Moonset 9:57 PM

Best Times for Fishing or Hunting

Major Periods

3:58 AM - 6:28 AM
4:21 PM - 6:51 PM

Minor Periods

11:22 AM - 12:52 PM
9:27 PM - 10:57 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 44.8°F
Average Humidity: 87%
Chance of Rain: 0%
Wind: 11.7 mph
UV Index: 4

Air Quality

EPA Index 1 • Good
PM2.5
3.3 μg/m³
Good
PM10
15.1 μg/m³
Good
Ozone (O3)
48 μg/m³
Photochemical
NO2
1.5 μg/m³
Nitrogen Dioxide
SO2
0.1 μg/m³
Sulfur Dioxide
CO
132.8 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 5m daylight
Sunrise 6:34 AM
Solar Noon 11:36 AM
Sunset 4:39 PM
Moon
First Quarter • 42%
Moonrise 12:21 PM
Transit 5:35 PM
Moonset 10:58 PM

Best Times for Fishing or Hunting

Major Periods

4:43 AM - 7:13 AM
5:05 PM - 7:35 PM

Minor Periods

11:51 AM - 1:21 PM
10:28 PM - 11:58 PM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Fog
Average Temperature: 53.8°F
Average Humidity: 61%
Chance of Rain: 0%
Wind: 33 mph
UV Index: 3.8

Air Quality

EPA Index 1 • Good
PM2.5
6 μg/m³
Good
PM10
32 μg/m³
Good
Ozone (O3)
57.3 μg/m³
Photochemical
NO2
0.9 μg/m³
Nitrogen Dioxide
SO2
0.1 μg/m³
Sulfur Dioxide
CO
121.9 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 3m daylight
Sunrise 6:35 AM
Solar Noon 11:36 AM
Sunset 4:39 PM
Moon
First Quarter • 54%
Moonrise 12:46 PM
Transit 6:18 PM
Moonset 11:59 PM

Best Times for Fishing or Hunting

Major Periods

5:27 AM - 7:57 AM
5:48 PM - 8:18 PM

Minor Periods

12:16 PM - 1:46 PM
11:29 PM - 12:59 AM
Action Rating:
Fair Action 2/5
Wednesday, November 18, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 55.9°F
Average Humidity: 39%
Chance of Rain: 3%
Wind: 30 mph
UV Index: 3.9

Air Quality

EPA Index 1 • Good
PM2.5
4 μg/m³
Good
PM10
23.8 μg/m³
Good
Ozone (O3)
71.4 μg/m³
Photochemical
NO2
1.8 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
125.8 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 2m daylight
Sunrise 6:36 AM
Solar Noon 11:36 AM
Sunset 4:38 PM
Moon
First Quarter • 65%
Moonrise 1:10 PM
Transit 7:04 PM
Moonset 1:35 AM

Best Times for Fishing or Hunting

Major Periods

6:09 AM - 8:39 AM
6:34 PM - 9:04 PM

Minor Periods

1:05 AM - 2:35 AM
12:40 PM - 2:10 PM
Action Rating:
Good Action 3/5
Thursday, November 19, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 50.7°F
Average Humidity: 50%
Chance of Rain: 1%
Wind: 21.3 mph
UV Index: 3.6

Air Quality

EPA Index 1 • Good
PM2.5
2.3 μg/m³
Good
PM10
5.2 μg/m³
Good
Ozone (O3)
42.2 μg/m³
Photochemical
NO2
4.7 μg/m³
Nitrogen Dioxide
SO2
0.2 μg/m³
Sulfur Dioxide
CO
133 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 0m daylight
Sunrise 6:37 AM
Solar Noon 11:37 AM
Sunset 4:37 PM
Moon
Waxing Gibbous • 75%
Moonrise 1:33 PM
Transit 12:00 PM
Moonset 1:02 AM

Best Times for Fishing or Hunting

Major Periods

11:30 AM - 2:00 PM
11:55 PM - 2:25 AM

Minor Periods

12:32 AM - 2:02 AM
1:03 PM - 2:33 PM
Action Rating:
Fair Action 2/5
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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