Water Temperature of the Middle Santiam River in Cascadia, OR

Current Water Temperature

32.0°F

Measurement Time: Monday, June 15, 2026, 12:09 AM PDT

Temperature Locations

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Local Points of Interest

Elk Creek; Green Peter Lake

Middle Santiam River

Station Name: MIDDLE SANTIAM R NEAR CASCADIA, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,096 feet

Nearest Address:
Cascadia, OR 97350
Linn County

GPS Coordinates: 44.5151239, -122.3720249

Nearby Water Temperatures

Quartzville Creek, Cascadia, OR (3.6 mi)
Middle Santiam River, Foster, OR (9.9 mi)
South Santiam River, Cascadia, OR (10.5 mi)
Blowout Creek, Detroit, OR (15.2 mi)
Detroit Lake, Detroit, OR (15.3 mi)
North Santiam River, Niagara, OR (16.9 mi)
South Santiam River, Sweet Home, OR (17.2 mi)
North Santiam River, Idanha, OR (18.8 mi)
Breitenbush River, Detroit, OR (20.3 mi)
Smith River, Belknap Springs, OR (20.3 mi)
Blue River, Blue River, OR (21.2 mi)
McKenzie River, Clear Lake, OR (21.4 mi)
Little North Santiam River, Lyons, OR (21.6 mi)
Lookout Creek, Blue River, OR (21.9 mi)
South Santiam River, Waterloo, OR (22.3 mi)

Weather for Cascadia, Oregon

Current Weather

72.2°F
Sunny
Sunny
62.4°F
72.3°F
27%
E 4.5 mph
9.4 mph
72.2°F
34.1°F
0 in
0%
6 mi
1018 mbar
0.5

Five Day Weather Forecast

Sunny
Mon
H: 91°F
L: 58°F
Sunny
Tue
H: 81°F
L: 48°F
Sunny
Wed
H: 79°F
L: 42°F
Sunny
Thu
H: 87°F
L: 47°F
Sunny
Fri
H: 82°F
L: 50°F

Air Quality

AQI: 1 - Good
PM2.5: 5.2 μg/m3
PM10: 5.8 μg/m3
Carbon Monoxide: 101 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:10 PM
Sunset: 8:56 PM
Daylight: 15 hrs 33 mins
Moonrise: 5:30 AM
Moon Transit: 1:57 PM
Moonset: 10:19 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:27 PM - 3:57 PM

Minor Periods

9:49 PM - 11:19 PM
5:00 AM - 6:30 AM

Action Rating: 4 out of 5

Heat Advisory issued June 14 at 10:50AM PDT until June 16 at 11:00PM PDT by NWS Portland OR

Effective: Sun June 14, 2026, 10:50 AM
Expires: Mon June 15, 2026, 12:15 AM

* WHAT...Temperatures of 92 to 98 degrees F expected. * WHERE...Central and Southern Willamette Valley, Northern and Central Coast Range Valleys and Mountains of Oregon, Foothills of the Northern and Central Oregon Cascades, Central Columbia River Gorge and the Hood River Valley, Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower Columbia River and Cowlitz River Valleys, Outer Southeast Portland Metro, West Columbia River Gorge of Oregon above 500 ft, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...Until 11 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Peak heating days will be today and Monday with a slight cool down on Tuesday. Overnight temperatures will remain elevated Sunday night into Monday morning, and Monday night into Tuesday morning. Night time temperatures ranging from 60 to 65 degrees F will lead to limited overnight relief. There is currently a 15-35% chance that night time temperatures remain above 70 degrees F Sunday night into Monday across the westernmost parts of the Central and Southern Willamette Valley which would lead to poor overnight relief.

Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keeps windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Monitor the latest forecasts and warnings for updates. If you do not have air conditioning in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the heat. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. For sheltering information and other human services, dial 2 1 1 during business hours or visit 211info.org in Oregon or wa211.org in Washington.


Heat Advisory issued June 14 at 9:41PM PDT until June 16 at 11:00PM PDT by NWS Portland OR

Effective: Sun June 14, 2026, 9:41 PM
Expires: Mon June 15, 2026, 9:45 AM

* WHAT...Temperatures of 93 to 98 degrees F expected. * WHERE...Central and Southern Willamette Valley, Northern and Central Coast Range Valleys and Mountains of Oregon, Foothills of the Northern and Central Oregon Cascades, Central Columbia River Gorge and the Hood River Valley, Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower Columbia River and Cowlitz River Valleys, Outer Southeast Portland Metro, West Columbia River Gorge of Oregon above 500 ft, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...Until 11 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Monday will be the hottest day of the week with temperatures cooling down on Tuesday. Overnight temperatures will remain elevated tonight into Monday morning, and Monday night into Tuesday morning. Night time temperatures ranging from 60 to 65 degrees F will lead to limited overnight relief. There is currently a 10-20% chance that night time temperatures remain above 70 degrees F tonight into Monday morning across the Coast Range and westernmost parts of the Central and Southern Willamette Valley which would lead to poor overnight relief.

Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keeps windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Monitor the latest forecasts and warnings for updates. If you do not have air conditioning in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the heat. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. For sheltering information and other human services, dial 2 1 1 during business hours or visit 211info.org in Oregon or wa211.org in Washington.


Monday, June 15, 2026

Weather Forecast

Sunny
91.2°F
57.7°F
76°F
36%
0 in
1%
0%
6.9 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 6.21 μg/m3
PM10: 7.37 μg/m3
Carbon Monoxide: 109.38 μg/m3
Nitrogen Dioxide: 2.53 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 85.88 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:10 PM
Sunset: 8:56 PM
Daylight: 15 hrs 33 mins
Moonrise: 5:30 AM
Moon Transit: 1:57 PM
Moonset: 10:19 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:27 PM - 3:57 PM

Minor Periods

9:49 PM - 11:19 PM
5:00 AM - 6:30 AM

Action Rating: 4 out of 5

Tuesday, June 16, 2026

Weather Forecast

Sunny
80.5°F
47.7°F
65.6°F
57%
0 in
3%
0%
7.8 mph
10.5


Air Quality

AQI: 1 - Good
PM2.5: 5.38 μg/m3
PM10: 6.97 μg/m3
Carbon Monoxide: 108.25 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 0.34 μg/m3
Ozone: 62.58 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:10 PM
Sunset: 8:57 PM
Daylight: 15 hrs 33 mins
Moonrise: 6:48 AM
Moon Transit: 3:02 PM
Moonset: 11:05 PM
Moon Phase: New
Moon Illumination: 1.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:32 PM - 5:02 PM

Minor Periods

12:00 AM - 12:00 AM
6:18 AM - 7:48 AM

Action Rating: 3 out of 5

Wednesday, June 17, 2026

Weather Forecast

Sunny
79.1°F
42.4°F
60.8°F
56%
0 in
2%
0%
6.9 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 4.13 μg/m3
PM10: 5.66 μg/m3
Carbon Monoxide: 106.33 μg/m3
Nitrogen Dioxide: 3.4 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 60.58 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:10 PM
Sunset: 8:57 PM
Daylight: 15 hrs 33 mins
Moonrise: 8:11 AM
Moon Transit: 4:03 PM
Moonset: 12:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:33 PM - 6:03 PM

Minor Periods

7:41 AM - 9:11 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, June 18, 2026

Weather Forecast

Sunny
86.6°F
47.2°F
66°F
51%
0 in
2%
0%
6.5 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 4.7 μg/m3
PM10: 5.87 μg/m3
Carbon Monoxide: 119.31 μg/m3
Nitrogen Dioxide: 3.72 μg/m3
Sulphur Dioxide: 0.26 μg/m3
Ozone: 72.54 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:10 PM
Sunset: 8:57 PM
Daylight: 15 hrs 33 mins
Moonrise: 9:32 AM
Moon Transit: 4:57 PM
Moonset: 12:39 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:27 PM - 6:57 PM

Minor Periods

9:02 AM - 10:32 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 19, 2026

Weather Forecast

Sunny
81.5°F
50.2°F
62.1°F
71%
0 in
17%
0%
6.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.13 μg/m3
PM10: 5.92 μg/m3
Carbon Monoxide: 142.83 μg/m3
Nitrogen Dioxide: 10.28 μg/m3
Sulphur Dioxide: 0.22 μg/m3
Ozone: 37.67 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:10 PM
Sunset: 8:58 PM
Daylight: 15 hrs 34 mins
Moonrise: 10:50 AM
Moon Transit: 5:46 PM
Moonset: 12:06 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

12:24 AM - 2:54 AM
5:16 PM - 7:46 PM

Minor Periods

10:20 AM - 11:50 AM
12:00 AM - 12:00 AM

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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