Water Temperature of the Boise River in Caldwell, ID

Current Water Temperature

62.6°F

Measurement Time: Thursday, September 17, 2026, 1:45 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

52°F
Patchy Fog
Patchy Fog
99%
E 1 mph
52°F

Weather Forecast

Patchy Fog then Sunny
Today
81°F - Patchy Fog then Sunny
Mostly Clear
Tonight
51°F - Mostly Clear
Areas Of Fog then Slight Chance Rain Showers
Friday
76°F - Areas Of Fog then Slight Chance Rain Showers
Mostly Clear then Patchy Fog
Friday Night
49°F - Mostly Clear then Patchy Fog
Patchy Fog then Sunny
Saturday
79°F - Patchy Fog then Sunny
Mostly Clear
Saturday Night
50°F - Mostly Clear
Sunny
Sunday
82°F - Sunny
Mostly Clear
Sunday Night
50°F - Mostly Clear
Sunny
Monday
84°F - Sunny
Mostly Clear
Monday Night
51°F - Mostly Clear
Sunny
Tuesday
85°F - Sunny
Mostly Clear
Tuesday Night
51°F - Mostly Clear
Sunny
Wednesday
84°F - Sunny
Partly Cloudy
Wednesday Night
49°F - Partly Cloudy

Astronomical

Sunrise: 7:28 AM
Sun Transit: 1:41 PM
Sunset: 7:53 PM
Daylight: 12 hrs 25 mins
Moonrise: 2:48 PM
Moon Transit: 6:56 PM
Moonset: 11:03 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
6:26 PM - 8:56 PM

Minor Periods

12:00 AM - 12:00 AM
2:18 PM - 3:48 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 1:41 PM
Sunset: 7:53 PM
Daylight: 12 hrs 25 mins
Moonrise: 2:48 PM
Moon Transit: 6:56 PM
Moonset: 11:03 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
6:26 PM - 8:56 PM

Minor Periods

12:00 AM - 12:00 AM
2:18 PM - 3:48 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 1:41 PM
Sunset: 7:53 PM
Daylight: 12 hrs 25 mins
Moonrise: 2:48 PM
Moon Transit: 6:56 PM
Moonset: 11:03 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
6:26 PM - 8:56 PM

Minor Periods

12:00 AM - 12:00 AM
2:18 PM - 3:48 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 1:40 PM
Sunset: 7:51 PM
Daylight: 12 hrs 22 mins
Moonrise: 3:43 PM
Moon Transit: 7:47 PM
Moonset: 12:03 AM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

3:10 AM - 5:40 AM
7:17 PM - 9:47 PM

Minor Periods

3:13 PM - 4:43 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 1:40 PM
Sunset: 7:51 PM
Daylight: 12 hrs 22 mins
Moonrise: 3:43 PM
Moon Transit: 7:47 PM
Moonset: 12:03 AM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

3:10 AM - 5:40 AM
7:17 PM - 9:47 PM

Minor Periods

3:13 PM - 4:43 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 1:40 PM
Sunset: 7:49 PM
Daylight: 12 hrs 19 mins
Moonrise: 4:29 PM
Moon Transit: 8:38 PM
Moonset: 12:54 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

4:02 AM - 6:32 AM
8:08 PM - 10:38 PM

Minor Periods

3:59 PM - 5:29 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 1:40 PM
Sunset: 7:49 PM
Daylight: 12 hrs 19 mins
Moonrise: 4:29 PM
Moon Transit: 8:38 PM
Moonset: 12:54 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

4:02 AM - 6:32 AM
8:08 PM - 10:38 PM

Minor Periods

3:59 PM - 5:29 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:32 AM
Sun Transit: 1:40 PM
Sunset: 7:47 PM
Daylight: 12 hrs 16 mins
Moonrise: 5:07 PM
Moon Transit: 9:28 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

4:53 AM - 7:23 AM
8:58 PM - 11:28 PM

Minor Periods

4:37 PM - 6:07 PM
12:22 AM - 1:52 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:32 AM
Sun Transit: 1:40 PM
Sunset: 7:47 PM
Daylight: 12 hrs 16 mins
Moonrise: 5:07 PM
Moon Transit: 9:28 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

4:53 AM - 7:23 AM
8:58 PM - 11:28 PM

Minor Periods

4:37 PM - 6:07 PM
12:22 AM - 1:52 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 1:39 PM
Sunset: 7:46 PM
Daylight: 12 hrs 13 mins
Moonrise: 5:38 PM
Moon Transit: 10:16 PM
Moonset: 1:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

5:42 AM - 8:12 AM
12:00 AM - 12:00 AM

Minor Periods

5:08 PM - 6:38 PM
1:26 AM - 2:56 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 1:39 PM
Sunset: 7:46 PM
Daylight: 12 hrs 13 mins
Moonrise: 5:38 PM
Moon Transit: 10:16 PM
Moonset: 1:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

5:42 AM - 8:12 AM
12:00 AM - 12:00 AM

Minor Periods

5:08 PM - 6:38 PM
1:26 AM - 2:56 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 1:39 PM
Sunset: 7:44 PM
Daylight: 12 hrs 10 mins
Moonrise: 6:04 PM
Moon Transit: 11:02 PM
Moonset: 3:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:34 PM - 7:04 PM
2:33 AM - 4:03 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 1:39 PM
Sunset: 7:44 PM
Daylight: 12 hrs 10 mins
Moonrise: 6:04 PM
Moon Transit: 11:02 PM
Moonset: 3:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:34 PM - 7:04 PM
2:33 AM - 4:03 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 1:39 PM
Sunset: 7:42 PM
Daylight: 12 hrs 7 mins
Moonrise: 6:26 PM
Moon Transit: 11:47 PM
Moonset: 4:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

7:14 AM - 9:44 AM
12:00 AM - 12:00 AM

Minor Periods

5:56 PM - 7:26 PM
3:41 AM - 5:11 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 1:39 PM
Sunset: 7:42 PM
Daylight: 12 hrs 7 mins
Moonrise: 6:26 PM
Moon Transit: 11:47 PM
Moonset: 4:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

7:14 AM - 9:44 AM
12:00 AM - 12:00 AM

Minor Periods

5:56 PM - 7:26 PM
3:41 AM - 5:11 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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