Water Temperature of the Boise River in Caldwell, ID

Current Water Temperature

54.5°F

Measurement Time: Wednesday, April 15, 2026, 1:45 AM 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

48°F
Light rain
Light rain
48°F
45.8°F
77%
E 2.5 mph
3.3 mph
41.8°F
43.1°F
0.04 in
100%
9 mi
1012 mbar
0.1

Five Day Weather Forecast

Moderate rain
Wed
H: 63°F
L: 41°F
Partly Cloudy
Thu
H: 49°F
L: 31°F
Sunny
Fri
H: 56°F
L: 28°F
Overcast
Sat
H: 63°F
L: 38°F
Sunny
Sun
H: 71°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 4.15 μg/m3
PM10: 5.85 μg/m3
Carbon Monoxide: 156.85 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:46 PM
Sunset: 8:31 PM
Daylight: 13 hrs 27 mins
Moonrise: 6:01 AM
Moon Transit: 9:33 AM
Moonset: 6:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
9:03 AM - 11:33 AM

Minor Periods

6:17 PM - 7:47 PM
5:31 AM - 7:01 AM

Action Rating: 3 out of 5

Freeze Watch issued April 15 at 2:23AM MDT until April 17 at 10:00AM MDT by NWS Boise ID

Effective: Wed April 15, 2026, 2:23 AM
Expires: Wed April 15, 2026, 3:15 PM

* WHAT...Sub-freezing temperatures as low as 24 degrees in the western Magic Valley, as low as 27 degrees in the Upper Treasure Valley, and as low as 30 degrees in the Lower Treasure Valley of Idaho and Oregon. Sub-freezing temperatures are expected again early Saturday morning, but not quite as cold as Friday morning. * WHERE...Portions of south central and southwest Idaho and southeast Oregon. * WHEN...From late Thursday night through Friday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.
Wednesday, April 15, 2026

Weather Forecast

Moderate rain
63.3°F
40.6°F
49.6°F
79%
0.68 in
89%
0%
19.7 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 6.05 μg/m3
PM10: 9.09 μg/m3
Carbon Monoxide: 169.45 μg/m3
Nitrogen Dioxide: 7.83 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 80.92 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:46 PM
Sunset: 8:31 PM
Daylight: 13 hrs 27 mins
Moonrise: 6:01 AM
Moon Transit: 9:33 AM
Moonset: 6:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
9:03 AM - 11:33 AM

Minor Periods

6:17 PM - 7:47 PM
5:31 AM - 7:01 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Partly Cloudy
48.7°F
31.1°F
39.6°F
57%
0 in
0%
0%
22.8 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 2.24 μg/m3
PM10: 3.1 μg/m3
Carbon Monoxide: 159.01 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 91.52 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:46 PM
Sunset: 8:32 PM
Daylight: 13 hrs 30 mins
Moonrise: 6:22 AM
Moon Transit: 1:05 PM
Moonset: 8:05 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

9:20 PM - 11:50 PM
12:35 AM - 3:05 PM

Minor Periods

7:35 PM - 9:05 PM
5:52 AM - 7:22 AM

Action Rating: 4 out of 5

Friday, April 17, 2026

Weather Forecast

Sunny
55.6°F
27.7°F
41.8°F
59%
0 in
0%
0%
11.2 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 3.38 μg/m3
PM10: 4.46 μg/m3
Carbon Monoxide: 182.53 μg/m3
Nitrogen Dioxide: 4.49 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 87.92 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:46 PM
Sunset: 8:33 PM
Daylight: 13 hrs 33 mins
Moonrise: 6:47 AM
Moon Transit: 1:58 PM
Moonset: 9:26 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:28 PM - 3:58 PM

Minor Periods

8:56 PM - 10:26 PM
6:17 AM - 7:47 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Overcast
62.8°F
37.9°F
49.5°F
41%
0 in
0%
0%
13.2 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 3.98 μg/m3
PM10: 5.14 μg/m3
Carbon Monoxide: 172.36 μg/m3
Nitrogen Dioxide: 8.01 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 1:46 PM
Sunset: 8:34 PM
Daylight: 13 hrs 36 mins
Moonrise: 7:15 AM
Moon Transit: 2:54 PM
Moonset: 10:50 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:24 PM - 4:54 PM

Minor Periods

10:20 PM - 11:50 PM
6:45 AM - 8:15 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Sunny
71.1°F
41.5°F
51.7°F
39%
0 in
0%
0%
20.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.67 μg/m3
PM10: 4.28 μg/m3
Carbon Monoxide: 163.37 μg/m3
Nitrogen Dioxide: 5.83 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 91.85 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:45 PM
Sunset: 8:36 PM
Daylight: 13 hrs 38 mins
Moonrise: 7:53 AM
Moon Transit: 3:56 PM
Moonset: 12:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:26 PM - 5:56 PM

Minor Periods

12:00 AM - 12:00 AM
7:23 AM - 8:53 AM

Action Rating: 3 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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