Water Temperature of the Middle Santiam River in Cascadia, OR

Current Water Temperature

69.3°F

Measurement Time: Tuesday, July 21, 2026, 12:00 PM 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

91.9°F
Sunny
Sunny
83.3°F
92.1°F
33%
W 2.7 mph
4.8 mph
91.9°F
58.5°F
0 in
0%
6 mi
1011 mbar
0.5

Five Day Weather Forecast

Smoky haze
Tue
H: 95°F
L: 65°F
Sunny
Wed
H: 91°F
L: 58°F
Sunny
Thu
H: 84°F
L: 53°F
Sunny
Fri
H: 84°F
L: 49°F
Patchy rain nearby
Sat
H: 75°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 16.1 μg/m3
PM10: 18 μg/m3
Carbon Monoxide: 137 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 129 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:15 PM
Sunset: 8:47 PM
Daylight: 15 hrs 2 mins
Moonrise: 2:23 PM
Moon Transit: 7:20 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

2:00 AM - 4:30 AM
6:50 PM - 9:20 PM

Minor Periods

1:53 PM - 3:23 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Heat Advisory issued July 21 at 10:47AM PDT until July 21 at 11:00PM PDT by NWS Portland OR

Effective: Tue July 21, 2026, 10:47 AM
Expires: Tue July 21, 2026, 11:00 PM

* WHAT...High temperature today of 95 to 98 degrees F. * WHERE...Cascade Foothills of Marion and Linn Counties and Linn County Lowlands. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Smoke from area fires and incoming cloud cover may reduce temperatures in some locations. However, there remains a high probability of temperatures meeting Major HeatRisk today. This is especially true within the valleys.

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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.


Tuesday, July 21, 2026

Weather Forecast

Smoky haze
95°F
65.1°F
81.4°F
45%
0 in
1%
0%
6.9 mph
7


Air Quality

AQI: 4 - Unhealthy
PM2.5: 71.14 μg/m3
PM10: 75.39 μg/m3
Carbon Monoxide: 157.92 μg/m3
Nitrogen Dioxide: 5.94 μg/m3
Sulphur Dioxide: 1.88 μg/m3
Ozone: 115.42 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:15 PM
Sunset: 8:47 PM
Daylight: 15 hrs 2 mins
Moonrise: 2:23 PM
Moon Transit: 7:20 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

2:00 AM - 4:30 AM
6:50 PM - 9:20 PM

Minor Periods

1:53 PM - 3:23 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
90.7°F
58.1°F
73.2°F
63%
0.1 in
57%
0%
6.9 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 11.33 μg/m3
PM10: 12.62 μg/m3
Carbon Monoxide: 127.38 μg/m3
Nitrogen Dioxide: 4.87 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 92.92 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:16 PM
Sunset: 8:46 PM
Daylight: 15 hrs mins
Moonrise: 3:30 PM
Moon Transit: 8:06 PM
Moonset: 12:09 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

2:45 AM - 5:15 AM
7:36 PM - 10:06 PM

Minor Periods

3:00 PM - 4:30 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
84.1°F
52.6°F
68.1°F
71%
0 in
8%
0%
6.5 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 9.11 μg/m3
PM10: 11.11 μg/m3
Carbon Monoxide: 96.29 μg/m3
Nitrogen Dioxide: 3.73 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:16 PM
Sunset: 8:45 PM
Daylight: 14 hrs 58 mins
Moonrise: 4:36 PM
Moon Transit: 8:54 PM
Moonset: 12:35 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

3:32 AM - 6:02 AM
8:24 PM - 10:54 PM

Minor Periods

4:06 PM - 5:36 PM
12:05 AM - 1:35 AM

Action Rating: 4 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
83.6°F
49.1°F
65.5°F
68%
0 in
5%
0%
7.6 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 3.7 μg/m3
PM10: 4.16 μg/m3
Carbon Monoxide: 94.2 μg/m3
Nitrogen Dioxide: 4.69 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 44.79 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:16 PM
Sunset: 8:44 PM
Daylight: 14 hrs 56 mins
Moonrise: 5:38 PM
Moon Transit: 9:44 PM
Moonset: 1:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

4:20 AM - 6:50 AM
9:14 PM - 11:44 PM

Minor Periods

5:08 PM - 6:38 PM
12:37 AM - 2:07 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Patchy rain nearby
74.8°F
45.3°F
60.4°F
72%
0 in
17%
0%
9.4 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 3.7 μg/m3
PM10: 4.72 μg/m3
Carbon Monoxide: 106 μg/m3
Nitrogen Dioxide: 9.6 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 31.67 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:16 PM
Sunset: 8:43 PM
Daylight: 14 hrs 54 mins
Moonrise: 6:35 PM
Moon Transit: 10:35 PM
Moonset: 1:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

5:11 AM - 7:41 AM
12:00 AM - 12:00 AM

Minor Periods

6:05 PM - 7:35 PM
1:17 AM - 2:47 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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