Water Temperature of the Kootenai River in Porthill, ID

Current Water Temperature

44.1°F

Measurement Time: Tuesday, April 14, 2026, 12:45 PM PDT

Temperature Locations

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Local Points of Interest

Boundary Creek; Rykert Creek

Kootenai River

Station Name: KOOTENAI RIVER AT PORTHILL ID
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,749 feet

Nearest Address:
207 Tavern Farm Rd
Porthill, ID 83805
Boundary County

GPS Coordinates: 48.99638889, -116.5075

Nearby Water Temperatures

Kootenai River, Copeland, ID (7.9 mi)
Kootenai River, Bonners Ferry, ID (15.1 mi)
Kootenai River, Bonners Ferry, ID (22.4 mi)
Kootenai River, Troy, MT (33.5 mi)
Pend Oreille River, Metaline Falls, WA (38.2 mi)
Pend Oreille River, Metaline Falls, WA (38.4 mi)
South Fork Flathead River, Columbia Falls, MT (121 mi)
Okanogan River, Oroville, WA (132.2 mi)
Osoyoos Lake, Oroville, WA (133 mi)
Similkameen River , Nighthawk, WA (141 mi)
Okanogan River, Malott, WA (154.1 mi)
North Fork Clearwater River, Pierce, ID (154.5 mi)
Columbia River, Bridgeport, WA (159.9 mi)
Andrews Creek, Mazama, WA (165.6 mi)
Columbia River, Azwell, WA (169.9 mi)

Weather for Porthill, Idaho

Current Weather

40.3°F
Patchy rain nearby
Patchy rain nearby
36.7°F
44.2°F
92%
S 5.1 mph
5.9 mph
36.7°F
35.6°F
0 in
0%
1 mi
1008 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 51°F
L: 42°F
Patchy rain nearby
Wed
H: 46°F
L: 34°F
Partly Cloudy
Thu
H: 47°F
L: 30°F
Partly Cloudy
Fri
H: 50°F
L: 33°F
Partly Cloudy
Sat
H: 56°F
L: 22°F

Air Quality

AQI: 1 - Good
PM2.5: 0.95 μg/m3
PM10: 0.95 μg/m3
Carbon Monoxide: 160.85 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:46 AM
Sunset: 7:37 PM
Daylight: 13 hrs 40 mins
Moonrise: 4:45 AM
Moon Transit: 10:29 AM
Moonset: 4:29 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:59 AM - 12:29 AM

Minor Periods

3:59 PM - 5:29 PM
4:15 AM - 5:45 AM

Action Rating: 3 out of 5

yellow warning - snowfall - in effect

Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Tue April 14, 2026, 6:11 AM
Expires: Tue April 14, 2026, 10:11 PM

Snowfall with total amounts of 15 to 25 cm is expected. Where: Highway 3 Kootenay Pass. When: Beginning this afternoon; lasting until late tomorrow night. Remarks: Falling freezing levels will accompany an influx of moisture today as a low pressure system crosses the province from northwest to southeast. Snow will begin as lighter flurries this morning and intensify this afternoon. Other hazards: Strong winds at times will accompany this system and give limited visibility in blowing snow. ### Travel will likely be challenging. Weather in the mountains can change suddenly resulting in hazardous driving conditions. Road conditions are available at https://www.drivebc.ca/. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

Allow extra time for travel. If driving, turn on your lights, slow down and maintain a safe following distance. The site https://shiftintowinter.ca/ reminds drivers to know before you go. Adjust to winter driving behaviour and use winter tires and chains.


yellow warning - snowfall - in effect

Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Tue April 14, 2026, 4:46 PM
Expires: Wed April 15, 2026, 8:46 AM

Snowfall with total amounts of 15 to 25 cm is expected. Where: Highway 3 - near Kootenay Pass. When: From now until late Wednesday night. Remarks: A low pressure system continues to affect the province tonight and Wednesday. Low freezing levels mean precipitation will fall as snow over the highway passes. Snow will persist tonight and tomorrow morning, easing temporarily Wednesday afternoon, before a final burst of snowfall is expected Wednesday evening. Snow will also impact Paulson Summit but will end earlier than Kootenay Pass and total amounts will be much less. A total of 10 to 15 cm is forecast. Other hazards: Strong winds at times will accompany this system and give limited visibility in blowing snow. ### Travel will likely be challenging. Weather in the mountains can change suddenly resulting in hazardous driving conditions. Road conditions are available at https://www.drivebc.ca/. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

Allow extra time for travel. If driving, turn on your lights, slow down and maintain a safe following distance. The site https://shiftintowinter.ca/ reminds drivers to know before you go. Adjust to winter driving behaviour and use winter tires and chains.


Tuesday, April 14, 2026

Weather Forecast

Patchy rain nearby
51.4°F
41.5°F
45.9°F
65%
0.02 in
86%
0%
6 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 3.53 μg/m3
PM10: 3.91 μg/m3
Carbon Monoxide: 170.17 μg/m3
Nitrogen Dioxide: 2.96 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 83 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:46 AM
Sunset: 7:37 PM
Daylight: 13 hrs 40 mins
Moonrise: 4:45 AM
Moon Transit: 10:29 AM
Moonset: 4:29 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:59 AM - 12:29 AM

Minor Periods

3:59 PM - 5:29 PM
4:15 AM - 5:45 AM

Action Rating: 3 out of 5

Wednesday, April 15, 2026

Weather Forecast

Patchy rain nearby
45.7°F
34.3°F
41.1°F
59%
0.04 in
89%
0%
6.5 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 1.93 μg/m3
PM10: 2.53 μg/m3
Carbon Monoxide: 164.85 μg/m3
Nitrogen Dioxide: 2.22 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 93.52 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 12:46 AM
Sunset: 7:38 PM
Daylight: 13 hrs 44 mins
Moonrise: 4:59 AM
Moon Transit: 8:33 AM
Moonset: 5:50 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:03 AM - 10:33 AM

Minor Periods

5:20 PM - 6:50 PM
4:29 AM - 5:59 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Partly Cloudy
46.9°F
30°F
37.3°F
49%
0 in
0%
0%
4.7 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.86 μg/m3
PM10: 3.88 μg/m3
Carbon Monoxide: 159.05 μg/m3
Nitrogen Dioxide: 3.11 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 96.52 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 12:45 AM
Sunset: 7:40 PM
Daylight: 13 hrs 47 mins
Moonrise: 5:15 AM
Moon Transit: 12:04 AM
Moonset: 7:14 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

8:20 PM - 10:50 PM
11:34 AM - 2:04 PM

Minor Periods

6:44 PM - 8:14 PM
4:45 AM - 6:15 AM

Action Rating: 4 out of 5

Friday, April 17, 2026

Weather Forecast

Partly Cloudy
49.8°F
33.1°F
39.8°F
50%
0 in
0%
0%
4 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 4.04 μg/m3
PM10: 5.09 μg/m3
Carbon Monoxide: 167.95 μg/m3
Nitrogen Dioxide: 3.89 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 99.64 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 12:45 AM
Sunset: 7:41 PM
Daylight: 13 hrs 51 mins
Moonrise: 5:33 AM
Moon Transit: 12:57 AM
Moonset: 8:42 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

9:14 PM - 11:44 PM
12:27 AM - 2:57 PM

Minor Periods

8:12 PM - 9:42 PM
5:03 AM - 6:33 AM

Action Rating: 3 out of 5

Saturday, April 18, 2026

Weather Forecast

Partly Cloudy
55.9°F
22.2°F
38.3°F
76%
0 in
0%
0%
2.5 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 5.17 μg/m3
PM10: 6.27 μg/m3
Carbon Monoxide: 188.14 μg/m3
Nitrogen Dioxide: 4.99 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 102.69 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 12:45 AM
Sunset: 7:43 PM
Daylight: 13 hrs 54 mins
Moonrise: 5:57 AM
Moon Transit: 1:54 PM
Moonset: 10:12 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:24 PM - 3:54 PM

Minor Periods

9:42 PM - 11:12 PM
5:27 AM - 6:57 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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