Water Temperature of the Boise River in Caldwell, ID

Current Water Temperature

49.6°F

Measurement Time: Friday, October 31, 2025, 12:45 AM MDT

Temperature Locations

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Local Points of Interest

Rotary Pond Park

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Boise River

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

Elevation Above Sea Level: 2,343 feet / 714 meters

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

34.3°F
Overcast
Conditions: Overcast
Humidity: 93%
Feels Like: 33.1°F
Wind: NW 2.2 mph
Wind Gusts: 6.7 mph
Pressure: 30.23 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Fri
H: 55°F
L: 33°F
Sunny
Sat
H: 66°F
L: 44°F
Partly Cloudy
Sun
H: 61°F
L: 48°F
Sunny
Mon
H: 59°F
L: 42°F
Sunny
Tue
H: 58°F
L: 41°F

Air Quality

PM2.5: 12.25 μg/m3
PM10: 12.65 μg/m3
Carbon Monoxide: 248.85 μg/m3
Nitrogen Dioxide: 7.85 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 57 μg/m3

Astronomical

Sunrise: 8:22 AM
Sun Transit: 1:30 PM
Sunset: 6:39 PM
Daylight: 10 hrs 16 mins
Moonrise: 4:18 PM
Moon Transit: 9:47 PM
Moonset: 2:16 AM
Moon Phase: First Quarter
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
9:17 PM - 11:47 PM

Minor Periods

3:48 PM - 5:18 PM
1:46 AM - 3:16 AM

Action Rating: 2 out of 5

Friday, October 31, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 44.1°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 5.1 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 14.36 μg/m3
PM10: 14.88 μg/m3
Carbon Monoxide: 460.93 μg/m3
Nitrogen Dioxide: 22.76 μg/m3
Sulphur Dioxide: 2.71 μg/m3
Ozone: 36.04 μg/m3

Astronomical

Sunrise: 8:22 AM
Sun Transit: 1:30 PM
Sunset: 6:39 PM
Daylight: 10 hrs 16 mins
Moonrise: 4:18 PM
Moon Transit: 9:47 PM
Moonset: 2:16 AM
Moon Phase: First Quarter
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
9:17 PM - 11:47 PM

Minor Periods

3:48 PM - 5:18 PM
1:46 AM - 3:16 AM

Action Rating: 2 out of 5

Saturday, November 1, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 53.1°F
Average Humidity: 43%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 9.77 μg/m3
PM10: 10.1 μg/m3
Carbon Monoxide: 361.33 μg/m3
Nitrogen Dioxide: 18.67 μg/m3
Sulphur Dioxide: 1.94 μg/m3
Ozone: 38.92 μg/m3

Astronomical

Sunrise: 8:23 AM
Sun Transit: 1:30 PM
Sunset: 6:37 PM
Daylight: 10 hrs 14 mins
Moonrise: 4:39 PM
Moon Transit: 12:00 AM
Moonset: 3:29 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:00 AM - 8:30 AM

Minor Periods

4:09 PM - 5:39 PM
2:59 AM - 4:29 AM

Action Rating: 3 out of 5

Sunday, November 2, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 52.7°F
Average Humidity: 42%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 3.83 μg/m3
PM10: 3.99 μg/m3
Carbon Monoxide: 224.77 μg/m3
Nitrogen Dioxide: 11.53 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 43.31 μg/m3

Astronomical

Sunrise: 8:25 AM
Sun Transit: 1:30 PM
Sunset: 6:36 PM
Daylight: 10 hrs 11 mins
Moonrise: 4:59 PM
Moon Transit: 10:31 AM
Moonset: 4:45 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

10:01 AM - 12:31 AM
10:01 AM - 12:31 AM

Minor Periods

4:29 PM - 5:59 PM
4:15 AM - 5:45 AM

Action Rating: 2 out of 5

Monday, November 3, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 49.3°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 6.9 mph
UV Index: 3

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: 8:26 AM
Sun Transit: 1:30 PM
Sunset: 6:35 PM
Daylight: 10 hrs 9 mins
Moonrise: 5:22 PM
Moon Transit: 12:00 AM
Moonset: 6:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:37 AM - 10:07 AM

Minor Periods

4:52 PM - 6:22 PM
5:33 AM - 7:03 AM

Action Rating: 3 out of 5

Tuesday, November 4, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 48.1°F
Average Humidity: 35%
Chance of Rain: 0%
Wind: 3.4 mph
UV Index: 3

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: 8:27 AM
Sun Transit: 1:30 PM
Sunset: 6:33 PM
Daylight: 10 hrs 6 mins
Moonrise: 5:48 PM
Moon Transit: 12:14 AM
Moonset: 7:24 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:18 PM - 6:48 PM
6:54 AM - 8:24 AM

Action Rating: 6 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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