Water Temperature of the Boise River in Caldwell, ID

Current Water Temperature

50.2°F

Measurement Time: Thursday, March 12, 2026, 9:45 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

50.2°F
Clear
Clear
48.6°F
45.6°F
63%
WSW 4.7 mph
9.1 mph
43.8°F
30.7°F
0 in
0%
9 mi
1019 mbar
0

Five Day Weather Forecast

Partly Cloudy
Fri
H: 71°F
L: 42°F
Overcast
Sat
H: 55°F
L: 34°F
Sunny
Sun
H: 45°F
L: 27°F
Partly Cloudy
Mon
H: 58°F
L: 40°F
Sunny
Tue
H: 66°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 3.95 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 251.85 μg/m3
Nitrogen Dioxide: 11.15 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 28 μg/m3

Astronomical

Sunrise: 8:02 AM
Sun Transit: 1:56 PM
Sunset: 7:51 PM
Daylight: 11 hrs 49 mins
Moonrise: 5:29 AM
Moon Transit: 9:41 AM
Moonset: 1:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

5:56 PM - 8:26 PM
9:11 AM - 11:41 AM

Minor Periods

1:29 PM - 2:59 PM
4:59 AM - 6:29 AM

Action Rating: 2 out of 5

High Wind Watch issued March 12 at 9:25AM MDT until March 14 at 9:00PM MDT by NWS Boise ID

Effective: Thu March 12, 2026, 9:25 AM
Expires: Fri March 13, 2026, 6:00 AM

* WHAT...West winds 30 to 40 mph with gusts up to 55 mph possible. The strongest winds will likely be on ridgetops. * WHERE...Portions of southwest Idaho and northeast and southeast Oregon. * WHEN...From Saturday afternoon through Saturday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially for high profile vehicles.

Monitor the latest forecasts and warnings for updates.
Friday, March 13, 2026

Weather Forecast

Partly Cloudy
71.4°F
42.1°F
54.2°F
51%
0 in
0%
0%
16.1 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 2.22 μg/m3
PM10: 2.29 μg/m3
Carbon Monoxide: 183.53 μg/m3
Nitrogen Dioxide: 6.49 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 59.52 μg/m3

Astronomical

Sunrise: 8:02 AM
Sun Transit: 1:56 PM
Sunset: 7:51 PM
Daylight: 11 hrs 49 mins
Moonrise: 5:29 AM
Moon Transit: 9:41 AM
Moonset: 1:59 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

5:56 PM - 8:26 PM
9:11 AM - 11:41 AM

Minor Periods

1:29 PM - 2:59 PM
4:59 AM - 6:29 AM

Action Rating: 2 out of 5

Saturday, March 14, 2026

Weather Forecast

Overcast
55.2°F
34°F
48.5°F
55%
0 in
0%
0%
28 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 2.02 μg/m3
PM10: 2.19 μg/m3
Carbon Monoxide: 165.21 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 77.96 μg/m3

Astronomical

Sunrise: 8:00 AM
Sun Transit: 1:55 PM
Sunset: 7:52 PM
Daylight: 11 hrs 52 mins
Moonrise: 6:04 AM
Moon Transit: 10:32 AM
Moonset: 3:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

6:45 PM - 9:15 PM
10:02 AM - 12:32 AM

Minor Periods

2:37 PM - 4:07 PM
5:34 AM - 7:04 AM

Action Rating: 2 out of 5

Sunday, March 15, 2026

Weather Forecast

Sunny
45.1°F
26.8°F
36.6°F
49%
0 in
0%
0%
12.8 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 3.33 μg/m3
PM10: 4.24 μg/m3
Carbon Monoxide: 172.13 μg/m3
Nitrogen Dioxide: 4.76 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 95.44 μg/m3

Astronomical

Sunrise: 7:59 AM
Sun Transit: 1:55 PM
Sunset: 7:53 PM
Daylight: 11 hrs 55 mins
Moonrise: 6:33 AM
Moon Transit: 11:21 AM
Moonset: 4:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

7:34 PM - 10:04 PM
10:51 AM - 1:21 PM

Minor Periods

3:48 PM - 5:18 PM
6:03 AM - 7:33 AM

Action Rating: 4 out of 5

Monday, March 16, 2026

Weather Forecast

Partly Cloudy
58°F
39.5°F
46.6°F
43%
0 in
0%
0%
8.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 6.33 μg/m3
PM10: 7.63 μg/m3
Carbon Monoxide: 326.82 μg/m3
Nitrogen Dioxide: 14.42 μg/m3
Sulphur Dioxide: 2.01 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 7:57 AM
Sun Transit: 1:55 PM
Sunset: 7:55 PM
Daylight: 11 hrs 58 mins
Moonrise: 6:57 AM
Moon Transit: 12:08 AM
Moonset: 5:30 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

8:21 PM - 10:51 PM
11:38 AM - 2:08 PM

Minor Periods

5:00 PM - 6:30 PM
6:27 AM - 7:57 AM

Action Rating: 4 out of 5

Tuesday, March 17, 2026

Weather Forecast

Sunny
66.3°F
40.6°F
49.7°F
61%
0 in
0%
0%
5.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 9.54 μg/m3
PM10: 10.03 μg/m3
Carbon Monoxide: 310.88 μg/m3
Nitrogen Dioxide: 24.58 μg/m3
Sulphur Dioxide: 2.24 μg/m3
Ozone: 44.31 μg/m3

Astronomical

Sunrise: 7:55 AM
Sun Transit: 1:55 PM
Sunset: 7:56 PM
Daylight: 12 hrs 1 mins
Moonrise: 7:19 AM
Moon Transit: 12:54 AM
Moonset: 6:43 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

9:07 PM - 11:37 PM
12:24 AM - 2:54 PM

Minor Periods

6:13 PM - 7:43 PM
6:49 AM - 8:19 AM

Action Rating: 5 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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