Water Temperature of the Boise River in Caldwell, ID

Current Water Temperature

70.9°F

Measurement Time: Wednesday, August 26, 2026, 8:45 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

69°F
Patchy Smoke
Patchy Smoke
54%
SW 3 mph
52°F

Weather Forecast

Patchy Smoke
Overnight
62°F - Patchy Smoke
Patchy Smoke
Thursday
95°F - Patchy Smoke
Mostly Cloudy
Thursday Night
61°F - Mostly Cloudy
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Friday
85°F - Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Friday Night
57°F - Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And Thunderstorms
Saturday
86°F - Mostly Sunny then Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Partly Cloudy
Saturday Night
51°F - Slight Chance Showers And Thunderstorms then Partly Cloudy
Sunny
Sunday
77°F - Sunny
Mostly Clear
Sunday Night
47°F - Mostly Clear
Sunny
Monday
86°F - Sunny
Partly Cloudy
Monday Night
54°F - Partly Cloudy
Mostly Sunny
Tuesday
85°F - Mostly Sunny
Partly Cloudy
Tuesday Night
52°F - Partly Cloudy
Mostly Sunny
Wednesday
81°F - Mostly Sunny

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:48 PM
Sunset: 8:31 PM
Daylight: 13 hrs 26 mins
Moonrise: 8:23 PM
Moon Transit: 1:09 AM
Moonset: 6:28 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:39 AM - 3:09 AM
9:21 AM - 11:51 AM

Minor Periods

7:53 PM - 9:23 PM
5:58 AM - 7:28 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: 7:05 AM
Sun Transit: 1:48 PM
Sunset: 8:31 PM
Daylight: 13 hrs 26 mins
Moonrise: 8:23 PM
Moon Transit: 1:09 AM
Moonset: 6:28 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:39 AM - 3:09 AM
9:21 AM - 11:51 AM

Minor Periods

7:53 PM - 9:23 PM
5:58 AM - 7:28 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: 7:05 AM
Sun Transit: 1:48 PM
Sunset: 8:31 PM
Daylight: 13 hrs 26 mins
Moonrise: 8:23 PM
Moon Transit: 1:09 AM
Moonset: 6:28 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:39 AM - 3:09 AM
9:21 AM - 11:51 AM

Minor Periods

7:53 PM - 9:23 PM
5:58 AM - 7:28 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: 7:05 AM
Sun Transit: 1:48 PM
Sunset: 8:31 PM
Daylight: 13 hrs 26 mins
Moonrise: 8:23 PM
Moon Transit: 1:09 AM
Moonset: 6:28 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:39 AM - 3:09 AM
9:21 AM - 11:51 AM

Minor Periods

7:53 PM - 9:23 PM
5:58 AM - 7:28 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: 7:06 AM
Sun Transit: 1:47 PM
Sunset: 8:29 PM
Daylight: 13 hrs 23 mins
Moonrise: 8:42 PM
Moon Transit: 1:53 AM
Moonset: 7:36 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

1:23 AM - 3:53 AM
10:05 AM - 12:35 AM

Minor Periods

8:12 PM - 9:42 PM
7:06 AM - 8:36 AM

Action Rating: 5 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: 7:06 AM
Sun Transit: 1:47 PM
Sunset: 8:29 PM
Daylight: 13 hrs 23 mins
Moonrise: 8:42 PM
Moon Transit: 1:53 AM
Moonset: 7:36 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

1:23 AM - 3:53 AM
10:05 AM - 12:35 AM

Minor Periods

8:12 PM - 9:42 PM
7:06 AM - 8:36 AM

Action Rating: 5 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: 7:07 AM
Sun Transit: 1:47 PM
Sunset: 8:27 PM
Daylight: 13 hrs 20 mins
Moonrise: 9:01 PM
Moon Transit: 2:37 AM
Moonset: 8:45 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

2:07 AM - 4:37 AM
12:00 AM - 12:00 AM

Minor Periods

8:31 PM - 10:01 PM
8:15 AM - 9:45 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: 7:07 AM
Sun Transit: 1:47 PM
Sunset: 8:27 PM
Daylight: 13 hrs 20 mins
Moonrise: 9:01 PM
Moon Transit: 2:37 AM
Moonset: 8:45 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

2:07 AM - 4:37 AM
12:00 AM - 12:00 AM

Minor Periods

8:31 PM - 10:01 PM
8:15 AM - 9:45 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: 7:08 AM
Sun Transit: 1:47 PM
Sunset: 8:26 PM
Daylight: 13 hrs 17 mins
Moonrise: 9:21 PM
Moon Transit: 12:00 AM
Moonset: 9:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:33 AM - 2:03 PM

Minor Periods

8:51 PM - 10:21 PM
9:25 AM - 10:55 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: 7:08 AM
Sun Transit: 1:47 PM
Sunset: 8:26 PM
Daylight: 13 hrs 17 mins
Moonrise: 9:21 PM
Moon Transit: 12:00 AM
Moonset: 9:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:33 AM - 2:03 PM

Minor Periods

8:51 PM - 10:21 PM
9:25 AM - 10:55 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: 7:09 AM
Sun Transit: 1:47 PM
Sunset: 8:24 PM
Daylight: 13 hrs 15 mins
Moonrise: 9:44 PM
Moon Transit: 4:07 AM
Moonset: 11:07 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:37 AM - 6:07 AM
12:20 AM - 2:50 PM

Minor Periods

9:14 PM - 10:44 PM
10:37 AM - 12:07 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: 7:09 AM
Sun Transit: 1:47 PM
Sunset: 8:24 PM
Daylight: 13 hrs 15 mins
Moonrise: 9:44 PM
Moon Transit: 4:07 AM
Moonset: 11:07 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:37 AM - 6:07 AM
12:20 AM - 2:50 PM

Minor Periods

9:14 PM - 10:44 PM
10:37 AM - 12:07 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: 7:11 AM
Sun Transit: 1:46 PM
Sunset: 8:22 PM
Daylight: 13 hrs 12 mins
Moonrise: 10:11 PM
Moon Transit: 4:55 AM
Moonset: 12:23 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
1:09 PM - 3:39 PM

Minor Periods

9:41 PM - 11:11 PM
11:53 AM - 1:23 PM

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: 7:11 AM
Sun Transit: 1:46 PM
Sunset: 8:22 PM
Daylight: 13 hrs 12 mins
Moonrise: 10:11 PM
Moon Transit: 4:55 AM
Moonset: 12:23 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
1:09 PM - 3:39 PM

Minor Periods

9:41 PM - 11:11 PM
11:53 AM - 1:23 PM

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: 7:12 AM
Sun Transit: 1:46 PM
Sunset: 8:20 PM
Daylight: 13 hrs 9 mins
Moonrise: 10:45 PM
Moon Transit: 5:48 AM
Moonset: 1:40 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

5:18 AM - 7:48 AM
2:03 PM - 4:33 PM

Minor Periods

10:15 PM - 11:45 PM
1:10 PM - 2:40 PM

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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