Water Temperature of the Boise River in Caldwell, ID

Current Water Temperature

69.6°F

Measurement Time: Wednesday, July 1, 2026, 12:45 PM MDT

Temperature Locations

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Local Points of Interest

Rotary Pond Park

Boise River

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

Elevation Above Sea Level: 2,343 feet

Nearest Address:
W Chicago Street
Caldwell, ID 83605-5407
Canyon County

GPS Coordinates: 43.67735278, -116.7011306

Nearby Water Temperatures

Boise River, Caldwell, ID (0.2 mi)
Boise River, Parma, ID (15.4 mi)
Snake River, Nyssa, OR (19.6 mi)
Snake River, King Hill, ID (88.6 mi)
Owyhee River, Bruneau, ID (98.2 mi)
Yankee Fork Salmon River, Sunbeam, ID (106.3 mi)
Meadow Creek, Stibnite, ID (106.8 mi)
East Fork South Fork Salmon River, Stibnite, ID (108.6 mi)
Sugar Creek, Yellow Pine, ID (110.1 mi)
East Fork Wallowa River, Joseph, OR (112.9 mi)
Box Canyon Springs, Wendell, ID (116.4 mi)
Briggs Spring, Buhl, ID (117.9 mi)
Snake River, Buhl, ID (122.2 mi)
Niagara Springs, Buhl, ID (123.8 mi)
Donner und Blitzen River, Frenchglen, OR (125.1 mi)

Weather for Caldwell, Idaho

Current Weather

82.4°F
Sunny
Sunny
78.8°F
79.6°F
22%
WNW 10.7 mph
12.3 mph
83.3°F
37.6°F
0 in
0%
9 mi
1010 mbar
1.1

Five Day Weather Forecast

Sunny
Wed
H: 86°F
L: 58°F
Sunny
Thu
H: 88°F
L: 52°F
Sunny
Fri
H: 92°F
L: 60°F
Sunny
Sat
H: 98°F
L: 61°F
Sunny
Sun
H: 101°F
L: 63°F

Air Quality

AQI: 1 - Good
PM2.5: 3.8 μg/m3
PM10: 4.7 μg/m3
Carbon Monoxide: 103 μg/m3
Nitrogen Dioxide: 1 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 102 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:50 PM
Sunset: 9:32 PM
Daylight: 15 hrs 23 mins
Moonrise: 11:05 PM
Moon Transit: 2:57 AM
Moonset: 7:27 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
11:11 AM - 1:41 PM

Minor Periods

12:00 AM - 12:00 AM
6:57 AM - 8:27 AM

Action Rating: 3 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
85.8°F
58.1°F
71.4°F
41%
0 in
1%
0%
11.4 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 6.43 μg/m3
PM10: 7.65 μg/m3
Carbon Monoxide: 119.08 μg/m3
Nitrogen Dioxide: 4.68 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 83.08 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:50 PM
Sunset: 9:32 PM
Daylight: 15 hrs 23 mins
Moonrise: 11:05 PM
Moon Transit: 2:57 AM
Moonset: 7:27 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
11:11 AM - 1:41 PM

Minor Periods

12:00 AM - 12:00 AM
6:57 AM - 8:27 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
87.6°F
52.1°F
71.5°F
25%
0 in
1%
0%
6.9 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 5.31 μg/m3
PM10: 6.08 μg/m3
Carbon Monoxide: 136.04 μg/m3
Nitrogen Dioxide: 8.46 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 77.29 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:50 PM
Sunset: 9:32 PM
Daylight: 15 hrs 22 mins
Moonrise: 12:05 AM
Moon Transit: 3:45 AM
Moonset: 8:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

3:15 AM - 5:45 AM
11:57 AM - 2:27 PM

Minor Periods

8:04 AM - 9:34 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
91.9°F
60.1°F
76.3°F
25%
0 in
1%
0%
10.3 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 3.83 μg/m3
PM10: 4.55 μg/m3
Carbon Monoxide: 121.04 μg/m3
Nitrogen Dioxide: 7.78 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 68.25 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:51 PM
Sunset: 9:32 PM
Daylight: 15 hrs 21 mins
Moonrise: 12:29 AM
Moon Transit: 4:30 AM
Moonset: 9:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

4:00 AM - 6:30 AM
12:42 AM - 3:12 PM

Minor Periods

9:11 AM - 10:41 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, July 4, 2026

Weather Forecast

Sunny
98.3°F
60.6°F
80°F
25%
0 in
0%
0%
12.1 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 2.58 μg/m3
PM10: 3.16 μg/m3
Carbon Monoxide: 110.25 μg/m3
Nitrogen Dioxide: 6.47 μg/m3
Sulphur Dioxide: 0.34 μg/m3
Ozone: 73.92 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:51 PM
Sunset: 9:31 PM
Daylight: 15 hrs 20 mins
Moonrise: 12:51 AM
Moon Transit: 5:14 AM
Moonset: 10:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
1:25 PM - 3:55 PM

Minor Periods

10:18 AM - 11:48 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, July 5, 2026

Weather Forecast

Sunny
101.2°F
63.3°F
82.4°F
21%
0 in
0%
0%
9.4 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 3.7 μg/m3
PM10: 4.3 μg/m3
Carbon Monoxide: 135.71 μg/m3
Nitrogen Dioxide: 12.46 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 48.14 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 1:51 PM
Sunset: 9:31 PM
Daylight: 15 hrs 19 mins
Moonrise: 12:11 AM
Moon Transit: 5:56 AM
Moonset: 11:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

5:26 AM - 7:56 AM
2:08 PM - 4:38 PM

Minor Periods

11:25 AM - 12:55 AM
12:00 AM - 12:00 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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