Water Temperature of the Middle Santiam River in Foster, OR

Current Water Temperature

45.9°F

Measurement Time: Thursday, January 8, 2026, 10:20 PM PST

Temperature Locations

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Local Points of Interest

Green Peter Reservoir; Green Peter Dam; Billings Park

Middle Santiam River

Station Name: MIDDLE SANTIAM R BLW GREEN PETER DAM NR FOSTER, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 745 feet

Nearest Address:
Quartzville Dr
Foster, OR 97345
Linn County

GPS Coordinates: 44.44818005, -122.5503613

Nearby Water Temperatures

South Santiam River, Cascadia, OR (4.7 mi)
South Santiam River, Sweet Home, OR (7.3 mi)
Quartzville Creek, Cascadia, OR (8.5 mi)
Middle Santiam River, Cascadia, OR (9.9 mi)
South Santiam River, Waterloo, OR (13.9 mi)
Blue River, Blue River, OR (21.3 mi)
North Fork Quartz Creek, Blue River, OR (21.6 mi)
Lookout Creek, Blue River, OR (22 mi)
Blue River Lake, Blue River, OR (22 mi)
Blue River, Blue River, OR (22.5 mi)
McKenzie River, Vida, OR (22.7 mi)
North Santiam River, Mehama, OR (23.6 mi)
Little North Santiam River, Lyons, OR (23.8 mi)
Detroit Lake, Detroit, OR (23.9 mi)
North Santiam River, Niagara, OR (24.5 mi)

Weather for Foster, Oregon

Current Weather

30.9°F
Clear
Clear
25.8°F
36.8°F
96%
ESE 4.9 mph
10.3 mph
32.9°F
26.4°F
0 in
0%
9 mi
1033 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 57°F
L: 27°F
Overcast
Sat
H: 56°F
L: 35°F
Partly Cloudy
Sun
H: 58°F
L: 27°F
Sunny
Mon
H: 56°F
L: 27°F
Sunny
Tue
H: 62°F
L: 35°F

Air Quality

AQI: 1 - Good
PM2.5: 4.85 μg/m3
PM10: 7.15 μg/m3
Carbon Monoxide: 183.85 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 98 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:17 AM
Sunset: 4:50 PM
Daylight: 9 hrs 5 mins
Moonrise: 12:19 AM
Moon Transit: 5:15 AM
Moonset: 11:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

4:45 AM - 7:15 AM
12:38 AM - 3:08 PM

Minor Periods

10:30 AM - 12:00 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Air Stagnation Advisory issued January 8 at 3:37PM PST until January 11 at 10:00AM PST by NWS Portland OR

Effective: Thu January 8, 2026, 3:37 PM
Expires: Fri January 9, 2026, 4:00 AM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Central and Southern Willamette Valley, Tualatin Valley, Portland West Hills and Chehalem Mountain, Inner Portland Metro, North Clark County Lowlands, and Inner Vancouver Metro. * WHEN...From 10 AM Friday to 10 AM PST Sunday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.

State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable.


Air Stagnation Advisory issued January 9 at 12:49AM PST until January 11 at 10:00AM PST by NWS Portland OR

Effective: Fri January 9, 2026, 12:49 AM
Expires: Sat January 10, 2026, 4:00 AM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Central and Southern Willamette Valley, Tualatin Valley, Portland West Hills and Chehalem Mountain, Inner Portland Metro, North Clark County Lowlands, and Inner Vancouver Metro. * WHEN...From 10 AM this morning to 10 AM PST Sunday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.

State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable.


Beach Hazards Statement issued January 9 at 12:46AM PST until January 12 at 4:00PM PST by NWS Portland OR

Effective: Fri January 9, 2026, 12:46 AM
Expires: Sat January 10, 2026, 4:15 AM

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From 4 AM PST early this morning through Monday afternoon. * IMPACTS...Sneaker waves can run up significantly farther on a beach than normal, including over rocks, logs, and jetties. Sneaker waves can suddenly knock people off of their feet and quickly pull them into the frigid ocean which may lead to serious injury or drowning.

Keep children and pets close and away from the surf zone. Keep off of jetties, rocks and logs near the surf zone. If you see someone swept into the sea do not swim in after them. Call 911 and keep an eye on them until help arrives. Stay farther back from the ocean than you think is necessary.


Friday, January 9, 2026

Weather Forecast

Sunny
56.8°F
26.9°F
42.4°F
62%
0 in
0%
0%
5.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.97 μg/m3
PM10: 2.54 μg/m3
Carbon Monoxide: 167.85 μg/m3
Nitrogen Dioxide: 2.66 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 77.52 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:17 AM
Sunset: 4:50 PM
Daylight: 9 hrs 5 mins
Moonrise: 12:19 AM
Moon Transit: 5:15 AM
Moonset: 11:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

4:45 AM - 7:15 AM
12:38 AM - 3:08 PM

Minor Periods

10:30 AM - 12:00 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, January 10, 2026

Weather Forecast

Overcast
56.1°F
34.7°F
42.7°F
55%
0 in
0%
0%
6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 5.09 μg/m3
PM10: 7.03 μg/m3
Carbon Monoxide: 174.93 μg/m3
Nitrogen Dioxide: 3.87 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 89.92 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:17 AM
Sunset: 4:51 PM
Daylight: 9 hrs 6 mins
Moonrise: 12:26 AM
Moon Transit: 5:56 AM
Moonset: 11:17 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

5:26 AM - 7:56 AM
1:19 PM - 3:49 PM

Minor Periods

10:47 AM - 12:17 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, January 11, 2026

Weather Forecast

Partly Cloudy
57.7°F
27.4°F
44.1°F
58%
0 in
0%
0%
6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.02 μg/m3
PM10: 4.99 μg/m3
Carbon Monoxide: 204.17 μg/m3
Nitrogen Dioxide: 2.87 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 83.44 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:18 AM
Sunset: 4:52 PM
Daylight: 9 hrs 7 mins
Moonrise: 1:31 AM
Moon Transit: 6:38 AM
Moonset: 11:37 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

6:08 AM - 8:38 AM
2:01 PM - 4:31 PM

Minor Periods

11:07 AM - 12:37 AM
1:01 AM - 2:31 AM

Action Rating: 3 out of 5

Monday, January 12, 2026

Weather Forecast

Sunny
55.5°F
27.4°F
36.9°F
85%
0 in
0%
0%
6.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.9 μg/m3
PM10: 3.31 μg/m3
Carbon Monoxide: 185.75 μg/m3
Nitrogen Dioxide: 3.17 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 75.48 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:18 AM
Sunset: 4:53 PM
Daylight: 9 hrs 9 mins
Moonrise: 2:37 AM
Moon Transit: 7:22 AM
Moonset: 12:00 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

6:52 AM - 9:22 AM
2:46 PM - 5:16 PM

Minor Periods

11:30 AM - 1:00 PM
2:07 AM - 3:37 AM

Action Rating: 3 out of 5

Tuesday, January 13, 2026

Weather Forecast

Sunny
61.8°F
35.1°F
40.7°F
88%
0 in
0%
0%
5.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.68 μg/m3
PM10: 3.09 μg/m3
Carbon Monoxide: 159.39 μg/m3
Nitrogen Dioxide: 5.47 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 62.08 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:19 AM
Sunset: 4:55 PM
Daylight: 9 hrs 11 mins
Moonrise: 3:42 AM
Moon Transit: 8:08 AM
Moonset: 12:29 AM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

7:38 AM - 10:08 AM
3:33 PM - 6:03 PM

Minor Periods

11:59 AM - 1:29 PM
3:12 AM - 4:42 AM

Action Rating: 3 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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