Water Temperature of the Boise River in Caldwell, ID

Current Water Temperature

52.9°F 11.6°C
Cold Thermal Gear Required
52.9°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Thursday, November 12, 2026, 7:45 AM MST

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

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

62.1°F
Overcast
Conditions: Overcast
Humidity: 36%
Feels Like: 57.6°F
Wind: NE 2.8 mph
Wind Gusts: 5.8 mph
Pressure: 29.82 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 32.1 mi
UV Index: 1.5

Five-Day Weather Forecast

Overcast
Thu
H: 62°F
L: 37°F
Overcast
Fri
H: 67°F
L: 39°F
Overcast
Sat
H: 57°F
L: 40°F
Overcast
Sun
H: 59°F
L: 44°F
Light Drizzle
Mon
H: 53°F
L: 41°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
2.4 μg/m³
Good
PM10
2.5 μg/m³
Good
Ozone (O3)
70 μg/m³
Photochemical
NO2
4.3 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
172 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 47m daylight
Sunrise 7:37 AM
Solar Noon 12:31 PM
Sunset 5:24 PM
Moon
Waxing Crescent • 6%
Moonrise 11:15 AM
Transit 3:22 PM
Moonset 7:32 PM

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
2:52 PM - 5:22 PM

Minor Periods

10:45 AM - 12:15 PM
7:02 PM - 8:32 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 46.4°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 3.2

Air Quality

EPA Index 1 • Good
PM2.5
3.5 μg/m³
Good
PM10
3.6 μg/m³
Good
Ozone (O3)
48.3 μg/m³
Photochemical
NO2
10 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
198.8 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 47m daylight
Sunrise 7:37 AM
Solar Noon 12:31 PM
Sunset 5:24 PM
Moon
Waxing Crescent • 6%
Moonrise 11:15 AM
Transit 3:22 PM
Moonset 7:32 PM

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
2:52 PM - 5:22 PM

Minor Periods

10:45 AM - 12:15 PM
7:02 PM - 8:32 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 52.9°F
Average Humidity: 43%
Chance of Rain: 60%
Wind: 17.7 mph
UV Index: 2.4

Air Quality

EPA Index 1 • Good
PM2.5
2.6 μg/m³
Good
PM10
2.9 μg/m³
Good
Ozone (O3)
62.9 μg/m³
Photochemical
NO2
5.2 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
153.7 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 44m daylight
Sunrise 7:38 AM
Solar Noon 12:31 PM
Sunset 5:23 PM
Moon
Waxing Crescent • 13%
Moonrise 11:59 AM
Transit 4:13 PM
Moonset 8:31 PM

Best Times for Fishing or Hunting

Major Periods

3:18 AM - 5:48 AM
3:43 PM - 6:13 PM

Minor Periods

11:29 AM - 12:59 PM
8:01 PM - 9:31 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 48.7°F
Average Humidity: 55%
Chance of Rain: 60%
Wind: 12.6 mph
UV Index: 1.8

Air Quality

EPA Index 1 • Good
PM2.5
2.1 μg/m³
Good
PM10
2.6 μg/m³
Good
Ozone (O3)
61 μg/m³
Photochemical
NO2
6.2 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
170 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 42m daylight
Sunrise 7:40 AM
Solar Noon 12:31 PM
Sunset 5:22 PM
Moon
Waxing Crescent • 21%
Moonrise 12:35 PM
Transit 5:01 PM
Moonset 9:34 PM

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
4:31 PM - 7:01 PM

Minor Periods

12:05 PM - 1:35 PM
9:04 PM - 10:34 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 51.6°F
Average Humidity: 44%
Chance of Rain: 16%
Wind: 21.8 mph
UV Index: 2.5

Air Quality

EPA Index 1 • Good
PM2.5
3.4 μg/m³
Good
PM10
4.1 μg/m³
Good
Ozone (O3)
49.9 μg/m³
Photochemical
NO2
5.6 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
148.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 40m daylight
Sunrise 7:41 AM
Solar Noon 12:31 PM
Sunset 5:21 PM
Moon
Waxing Crescent • 31%
Moonrise 1:04 PM
Transit 5:48 PM
Moonset 10:39 PM

Best Times for Fishing or Hunting

Major Periods

4:55 AM - 7:25 AM
5:18 PM - 7:48 PM

Minor Periods

12:34 PM - 2:04 PM
10:09 PM - 11:39 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 48.4°F
Average Humidity: 64%
Chance of Rain: 54%
Wind: 11.5 mph
UV Index: 1.3

Air Quality

EPA Index 1 • Good
PM2.5
4 μg/m³
Good
PM10
5.2 μg/m³
Good
Ozone (O3)
55.4 μg/m³
Photochemical
NO2
6 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
212.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 38m daylight
Sunrise 7:42 AM
Solar Noon 12:31 PM
Sunset 5:20 PM
Moon
First Quarter • 42%
Moonrise 1:29 PM
Transit 6:32 PM
Moonset 11:44 PM

Best Times for Fishing or Hunting

Major Periods

5:40 AM - 8:10 AM
6:02 PM - 8:32 PM

Minor Periods

12:59 PM - 2:29 PM
11:14 PM - 12:44 AM
Action Rating:
Good Action 3/5
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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