Water Temperature of the Boise River in Caldwell, ID

Current Water Temperature

74.1°F

Measurement Time: Saturday, July 25, 2026, 5:30 PM MDT

Temperature Locations

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Local Points of Interest

Indian Creek

Boise River

Station Name: BOISE RIVER ABV INDIAN CREEK AT CALDWELL, ID
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 2,349 feet

Nearest Address:
Johnson Lane
Caldwell, ID 83605-5407
Canyon County

GPS Coordinates: 43.67776944, -116.7054944

Nearby Water Temperatures

Boise River, Caldwell, ID (0.2 mi)
Boise River, Parma, ID (15.2 mi)
Snake River, Nyssa, OR (19.5 mi)
Snake River, King Hill, ID (88.8 mi)
Owyhee River, Bruneau, ID (98.2 mi)
Yankee Fork Salmon River, Sunbeam, ID (106.5 mi)
Meadow Creek, Stibnite, ID (106.9 mi)
East Fork South Fork Salmon River, Stibnite, ID (108.8 mi)
Sugar Creek, Yellow Pine, ID (110.2 mi)
East Fork Wallowa River, Joseph, OR (112.9 mi)
Box Canyon Springs, Wendell, ID (116.6 mi)
Briggs Spring, Buhl, ID (118.1 mi)
Snake River, Buhl, ID (122.4 mi)
Niagara Springs, Buhl, ID (124 mi)
Donner und Blitzen River, Frenchglen, OR (124.9 mi)

Weather for Caldwell, Idaho

Current Weather

75.2°F
Clear
Clear
76.2°F
75°F
38%
WNW 7.4 mph
15.5 mph
72.1°F
44°F
0 in
0%
10 mi
925 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 101°F
L: 65°F
Sunny
Mon
H: 99°F
L: 64°F
Smoky haze
Tue
H: 100°F
L: 63°F
Smoky haze
Wed
H: 103°F
L: 64°F
Sunny
Thu
H: 105°F
L: 65°F

Air Quality

AQI: 2 - Moderate
PM2.5: 16.2 μg/m3
PM10: 17.2 μg/m3
Carbon Monoxide: 298 μg/m3
Nitrogen Dioxide: 7.3 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 102 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 1:53 PM
Sunset: 9:16 PM
Daylight: 14 hrs 46 mins
Moonrise: 7:55 PM
Moon Transit: 12:00 AM
Moonset: 3:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

7:25 PM - 8:55 PM
2:47 AM - 4:17 AM

Action Rating: 3 out of 5

Heat Advisory issued July 24 at 10:48PM MDT until July 25 at 9:00PM MDT by NWS Boise ID

Effective: Fri July 24, 2026, 10:48 PM
Expires: Sat July 25, 2026, 9:00 PM

* WHAT...Temperatures up to 104. * WHERE...Portions of south central and southwest Idaho and southeast Oregon. * WHEN...Until 9 PM MDT /8 PM PDT/ Saturday. * IMPACTS...Hot temperatures may cause heat illnesses, especially for the young, elderly, and animals.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Sunday, July 26, 2026

Weather Forecast

Sunny
100.9°F
65.3°F
82.1°F
25%
0 in
0%
0%
8.5 mph
8.2


Air Quality

AQI: 2 - Moderate
PM2.5: 29.24 μg/m3
PM10: 30.79 μg/m3
Carbon Monoxide: 198.04 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 114.92 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 1:53 PM
Sunset: 9:16 PM
Daylight: 14 hrs 46 mins
Moonrise: 7:55 PM
Moon Transit: 12:00 AM
Moonset: 3:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

7:25 PM - 8:55 PM
2:47 AM - 4:17 AM

Action Rating: 3 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
99.2°F
64°F
81.4°F
23%
0 in
0%
0%
10.5 mph
7.7


Air Quality

AQI: 2 - Moderate
PM2.5: 28.48 μg/m3
PM10: 30.11 μg/m3
Carbon Monoxide: 292.5 μg/m3
Nitrogen Dioxide: 7.19 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 107.63 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:53 PM
Sunset: 9:15 PM
Daylight: 14 hrs 44 mins
Moonrise: 8:35 PM
Moon Transit: 12:03 AM
Moonset: 4:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:17 AM - 10:47 AM

Minor Periods

8:05 PM - 9:35 PM
3:45 AM - 5:15 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Smoky haze
100.4°F
63.2°F
82°F
21%
0 in
0%
0%
11 mph
7.7


Air Quality

AQI: 2 - Moderate
PM2.5: 36.69 μg/m3
PM10: 38.68 μg/m3
Carbon Monoxide: 385.83 μg/m3
Nitrogen Dioxide: 9.83 μg/m3
Sulphur Dioxide: 1.64 μg/m3
Ozone: 111.38 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:53 PM
Sunset: 9:14 PM
Daylight: 14 hrs 42 mins
Moonrise: 9:08 PM
Moon Transit: 12:53 AM
Moonset: 5:18 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:23 AM - 2:53 AM
9:07 AM - 11:37 AM

Minor Periods

8:38 PM - 10:08 PM
4:48 AM - 6:18 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Smoky haze
102.8°F
63.8°F
83.3°F
22%
0 in
0%
0%
11 mph
7.7


Air Quality

AQI: 2 - Moderate
PM2.5: 36.9 μg/m3
PM10: 39.31 μg/m3
Carbon Monoxide: 239.6 μg/m3
Nitrogen Dioxide: 4.55 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 108.29 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:53 PM
Sunset: 9:13 PM
Daylight: 14 hrs 40 mins
Moonrise: 9:34 PM
Moon Transit: 1:42 AM
Moonset: 6:25 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

1:12 AM - 3:42 AM
9:55 AM - 12:25 AM

Minor Periods

9:04 PM - 10:34 PM
5:55 AM - 7:25 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
105.2°F
65.3°F
85°F
23%
0 in
0%
0%
8.9 mph
10


Air Quality

AQI: 2 - Moderate
PM2.5: 20.83 μg/m3
PM10: 22.74 μg/m3
Carbon Monoxide: 240.29 μg/m3
Nitrogen Dioxide: 22.63 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 47.86 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:53 PM
Sunset: 9:12 PM
Daylight: 14 hrs 38 mins
Moonrise: 9:57 PM
Moon Transit: 2:28 AM
Moonset: 7:32 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:58 AM - 4:28 AM
10:40 AM - 1:10 PM

Minor Periods

9:27 PM - 10:57 PM
7:02 AM - 8:32 AM

Action Rating: 5 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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