Water Temperature of the Middle Santiam River in Cascadia, OR

Current Water Temperature

39.6°F

Measurement Time: Wednesday, February 18, 2026, 8:40 PM PST

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

34.5°F
Patchy rain nearby
Patchy rain nearby
33.4°F
34.5°F
85%
E 3.4 mph
7 mph
33.4°F
30.5°F
0 in
83%
1 mi
1008 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 42°F
L: 31°F
Partly Cloudy
Fri
H: 43°F
L: 23°F
Overcast
Sat
H: 54°F
L: 33°F
Moderate rain
Sun
H: 55°F
L: 32°F
Moderate rain
Mon
H: 45°F
L: 31°F

Air Quality

AQI: 1 - Good
PM2.5: 2.65 μg/m3
PM10: 3.35 μg/m3
Carbon Monoxide: 154.85 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 4.55 μg/m3
Ozone: 96 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:23 AM
Sunset: 5:44 PM
Daylight: 10 hrs 41 mins
Moonrise: 7:58 AM
Moon Transit: 1:07 PM
Moonset: 8:40 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 PM
12:37 AM - 3:07 PM

Minor Periods

8:10 PM - 9:40 PM
7:28 AM - 8:58 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued February 18 at 4:27PM PST until February 19 at 12:00PM PST by NWS Portland OR

Effective: Wed February 18, 2026, 4:27 PM
Expires: Thu February 19, 2026, 4:30 AM

...ACCUMULATING SNOW IS EXPECTED TO CONTINUE THROUGH AT LEAST THURSDAY MORNING IN THE COAST RANGE, CASCADES, CASCADE FOOTHILLS, AND ELEVATIONS ABOVE 500 TO 1000 FEET WITHIN THE PORTLAND METRO AND WILLAMETTE VALLEY... * WHAT...Snow. Additional snow accumulations of 1 to 6 inches, with the lowest amounts between 500-1000 feet in elevation and the highest amounts above 1000-1500 feet in elevation. * WHERE...Foothills of the Northern and Central Oregon Cascades, North and Central Coast Range Mountains of Oregon, North Oregon Coast Range Lowlands, Portland West Hills and Chehalem Mountain, Willapa Hills, and South Washington Cascade Foothills. * WHEN...Until noon PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...A renewed band of snow showers is expected to move over the Coast Range between 6pm PST Wednesday and 12am PST Thursday. Some of these showers may be heavy.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map


Winter Weather Advisory issued February 18 at 4:27PM PST until February 19 at 7:00PM PST by NWS Portland OR

Effective: Wed February 18, 2026, 4:27 PM
Expires: Thu February 19, 2026, 4:30 AM

...ACCUMULATING SNOW IS EXPECTED TO CONTINUE THROUGH AT LEAST THURSDAY MORNING IN THE COAST RANGE, CASCADES, CASCADE FOOTHILLS, AND ELEVATIONS ABOVE 500 TO 1000 FEET WITHIN THE PORTLAND METRO AND WILLAMETTE VALLEY... * WHAT...Snow. Additional snow accumulations between 3 and 8 inches. Snow amounts will be highest for elevations above 1500 feet. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 7 PM PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map


Winter Weather Advisory issued February 18 at 8:52PM PST until February 19 at 12:00PM PST by NWS Portland OR

Effective: Wed February 18, 2026, 8:52 PM
Expires: Thu February 19, 2026, 12:00 PM

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches, with the lowest amounts below 1000 feet in elevation and the highest amounts above 1000-1500 feet in elevation. * WHERE...Northern and Central Coast Range Valleys and Mountains of Oregon, Foothills of the Northern and Central Oregon Cascades, Portland West Hills and Chehalem Mountain, Willapa Hills, and South Washington Cascade Foothills. * WHEN...Until noon PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map


Winter Weather Advisory issued February 18 at 8:52PM PST until February 19 at 7:00PM PST by NWS Portland OR

Effective: Wed February 18, 2026, 8:52 PM
Expires: Thu February 19, 2026, 12:45 PM

* WHAT...Snow. Additional snow accumulations between 2 and 5 inches. Snow amounts will be highest for elevations above 1500 feet. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 7 PM PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map


Winter Weather Advisory issued February 18 at 4:27PM PST until February 19 at 12:00PM PST by NWS Portland OR

Effective: Wed February 18, 2026, 4:27 PM
Expires: Thu February 19, 2026, 4:30 AM

...ACCUMULATING SNOW IS EXPECTED TO CONTINUE THROUGH AT LEAST THURSDAY MORNING IN THE COAST RANGE, CASCADES, CASCADE FOOTHILLS, AND ELEVATIONS ABOVE 500 TO 1000 FEET WITHIN THE PORTLAND METRO AND WILLAMETTE VALLEY... * WHAT...Wet snow. Additional snow accumulations of a trace to two inches. * WHERE...Central Oregon Coast Range Lowlands. * WHEN...Until noon PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...A renewed band of snow showers is expected to move over the Coast Range between 6pm PST Wednesday and 12am PST Thursday. Some of these showers may be heavy.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map
Thursday, February 19, 2026

Weather Forecast

Patchy rain nearby
41.9°F
30.6°F
35.7°F
84%
0.07 in
89%
12%
6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.6 μg/m3
PM10: 3.14 μg/m3
Carbon Monoxide: 160.65 μg/m3
Nitrogen Dioxide: 2.83 μg/m3
Sulphur Dioxide: 3.15 μg/m3
Ozone: 87.76 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:23 AM
Sunset: 5:44 PM
Daylight: 10 hrs 41 mins
Moonrise: 7:58 AM
Moon Transit: 1:07 PM
Moonset: 8:40 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 PM
12:37 AM - 3:07 PM

Minor Periods

8:10 PM - 9:40 PM
7:28 AM - 8:58 AM

Action Rating: 3 out of 5

Friday, February 20, 2026

Weather Forecast

Partly Cloudy
42.8°F
22.5°F
32.3°F
75%
0 in
0%
0%
5.1 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.1 μg/m3
PM10: 3.76 μg/m3
Carbon Monoxide: 164.49 μg/m3
Nitrogen Dioxide: 3.35 μg/m3
Sulphur Dioxide: 2.96 μg/m3
Ozone: 88.48 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:23 AM
Sunset: 5:45 PM
Daylight: 10 hrs 44 mins
Moonrise: 8:18 AM
Moon Transit: 12:00 AM
Moonset: 9:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

9:25 PM - 10:55 PM
7:48 AM - 9:18 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Overcast
54.3°F
32.7°F
42.7°F
53%
0 in
0%
0%
8.7 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.01 μg/m3
PM10: 3.61 μg/m3
Carbon Monoxide: 166.21 μg/m3
Nitrogen Dioxide: 3.69 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 90.6 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:23 AM
Sunset: 5:47 PM
Daylight: 10 hrs 47 mins
Moonrise: 8:39 AM
Moon Transit: 3:48 PM
Moonset: 11:13 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:18 PM - 5:48 PM

Minor Periods

12:00 AM - 12:00 AM
8:09 AM - 9:39 AM

Action Rating: 3 out of 5

Sunday, February 22, 2026

Weather Forecast

Moderate rain
54.9°F
31.8°F
39.4°F
87%
0.41 in
81%
4%
9.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.59 μg/m3
PM10: 4.56 μg/m3
Carbon Monoxide: 153.73 μg/m3
Nitrogen Dioxide: 2.73 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 94.08 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 12:22 AM
Sunset: 5:48 PM
Daylight: 10 hrs 50 mins
Moonrise: 9:05 AM
Moon Transit: 4:40 PM
Moonset: 12:13 AM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:10 PM - 6:40 PM

Minor Periods

8:35 AM - 10:05 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, February 23, 2026

Weather Forecast

Moderate rain
44.9°F
30.5°F
39.1°F
96%
0.49 in
78%
0%
16.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.88 μg/m3
PM10: 3.52 μg/m3
Carbon Monoxide: 167.21 μg/m3
Nitrogen Dioxide: 3.52 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 80.54 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:22 AM
Sunset: 5:50 PM
Daylight: 10 hrs 53 mins
Moonrise: 9:36 AM
Moon Transit: 5:37 PM
Moonset: 12:33 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
5:07 PM - 7:37 PM

Minor Periods

9:06 AM - 10:36 AM
12:03 AM - 1:33 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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