Water Temperature of the Boise River in Caldwell, ID

Current Water Temperature

56.1°F

Measurement Time: Monday, March 30, 2026, 7:45 AM 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

57.9°F
Sunny
Sunny
56.4°F
62.4°F
47%
NW 8.1 mph
9.3 mph
62.3°F
38.9°F
0 in
25%
9 mi
1016 mbar
3.8

Five Day Weather Forecast

Sunny
Mon
H: 65°F
L: 45°F
Patchy rain nearby
Tue
H: 58°F
L: 41°F
Moderate rain
Wed
H: 55°F
L: 44°F
Patchy rain nearby
Thu
H: 52°F
L: 39°F
Sunny
Fri
H: 55°F
L: 34°F

Air Quality

AQI: 1 - Good
PM2.5: 1.75 μg/m3
PM10: 2.25 μg/m3
Carbon Monoxide: 153.85 μg/m3
Nitrogen Dioxide: 3.65 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:00 AM
Sunset: 8:12 PM
Daylight: 12 hrs 40 mins
Moonrise: 6:00 PM
Moon Transit: 12:00 AM
Moonset: 6:29 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:58 AM - 10:28 AM

Minor Periods

5:30 PM - 7:00 PM
5:59 AM - 7:29 AM

Action Rating: 4 out of 5

Monday, March 30, 2026

Weather Forecast

Sunny
64.6°F
45.1°F
54.5°F
48%
0 in
0%
0%
11.2 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 4.88 μg/m3
PM10: 5.69 μg/m3
Carbon Monoxide: 177.37 μg/m3
Nitrogen Dioxide: 5.81 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 76.88 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:00 AM
Sunset: 8:12 PM
Daylight: 12 hrs 40 mins
Moonrise: 6:00 PM
Moon Transit: 12:00 AM
Moonset: 6:29 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:58 AM - 10:28 AM

Minor Periods

5:30 PM - 7:00 PM
5:59 AM - 7:29 AM

Action Rating: 4 out of 5

Tuesday, March 31, 2026

Weather Forecast

Patchy rain nearby
57.9°F
40.5°F
48.5°F
80%
0.17 in
77%
0%
6.9 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 3.14 μg/m3
PM10: 3.93 μg/m3
Carbon Monoxide: 189.97 μg/m3
Nitrogen Dioxide: 4.29 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 88.72 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:00 AM
Sunset: 8:13 PM
Daylight: 12 hrs 43 mins
Moonrise: 7:08 PM
Moon Transit: 12:30 AM
Moonset: 6:48 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
8:42 AM - 11:12 AM

Minor Periods

6:38 PM - 8:08 PM
6:18 AM - 7:48 AM

Action Rating: 4 out of 5

Wednesday, April 1, 2026

Weather Forecast

Moderate rain
55.4°F
43.5°F
49°F
80%
0.6 in
89%
0%
15 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 6.01 μg/m3
PM10: 6.45 μg/m3
Carbon Monoxide: 197.53 μg/m3
Nitrogen Dioxide: 6.85 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 69.04 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:00 AM
Sunset: 8:14 PM
Daylight: 12 hrs 46 mins
Moonrise: 8:16 PM
Moon Transit: 1:13 AM
Moonset: 7:06 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 AM
9:24 AM - 11:54 AM

Minor Periods

7:46 PM - 9:16 PM
6:36 AM - 8:06 AM

Action Rating: 4 out of 5

Thursday, April 2, 2026

Weather Forecast

Patchy rain nearby
52.3°F
38.7°F
44.4°F
55%
0.1 in
88%
0%
21.9 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 1.91 μg/m3
PM10: 2.31 μg/m3
Carbon Monoxide: 164.24 μg/m3
Nitrogen Dioxide: 2.7 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 84.04 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 8:15 PM
Daylight: 12 hrs 49 mins
Moonrise: 9:23 PM
Moon Transit: 1:55 AM
Moonset: 7:25 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

1:25 AM - 3:55 AM
10:07 AM - 12:37 AM

Minor Periods

8:53 PM - 10:23 PM
6:55 AM - 8:25 AM

Action Rating: 3 out of 5

Friday, April 3, 2026

Weather Forecast

Sunny
55.1°F
34°F
43.9°F
56%
0 in
0%
0%
13.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.02 μg/m3
PM10: 3.83 μg/m3
Carbon Monoxide: 174.76 μg/m3
Nitrogen Dioxide: 5.4 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 85.23 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 1:50 PM
Sunset: 8:16 PM
Daylight: 12 hrs 52 mins
Moonrise: 10:30 PM
Moon Transit: 2:38 AM
Moonset: 7:45 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

2:08 AM - 4:38 AM
10:50 AM - 1:20 PM

Minor Periods

10:00 PM - 11:30 PM
7:15 AM - 8:45 AM

Action Rating: 4 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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