Water Temperature of the Middle Santiam River in Foster, OR

Current Water Temperature

43.5°F

Measurement Time: Thursday, February 5, 2026, 5:30 AM 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

51.1°F
Sunny
Sunny
51.6°F
64.5°F
71%
SE 2.2 mph
6.7 mph
64.4°F
51.4°F
0 in
0%
9 mi
1020 mbar
1.9

Five Day Weather Forecast

Sunny
Thu
H: 67°F
L: 53°F
Partly Cloudy
Fri
H: 61°F
L: 41°F
Cloudy
Sat
H: 55°F
L: 48°F
Heavy rain
Sun
H: 56°F
L: 38°F
Patchy rain nearby
Mon
H: 48°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 10.45 μg/m3
PM10: 10.75 μg/m3
Carbon Monoxide: 215.85 μg/m3
Nitrogen Dioxide: 8.75 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 36 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:24 AM
Sunset: 5:25 PM
Daylight: 10 hrs 2 mins
Moonrise: 10:08 PM
Moon Transit: 3:07 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
10:30 AM - 1:00 PM

Minor Periods

9:38 PM - 11:08 PM
8:33 AM - 10:03 AM

Action Rating: 2 out of 5

Air Stagnation Advisory issued February 5 at 12:24AM PST until February 6 at 10:00PM PST by NWS Portland OR

Effective: Thu February 5, 2026, 12:24 AM
Expires: Thu February 5, 2026, 1:00 PM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...South Willamette Valley, Foothills of the Northern and Central Oregon Cascades, Lower Columbia River and Cowlitz River Valleys, East Central Willamette Valley, and North Clark County Lowlands. * WHEN...Until 10 PM PST Friday. * 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.


Dense Fog Advisory issued February 5 at 7:24AM PST until February 5 at 11:00AM PST by NWS Portland OR

Effective: Thu February 5, 2026, 7:24 AM
Expires: Thu February 5, 2026, 4:30 PM

* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Air Stagnation Advisory, light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...South Willamette Valley, and Lower Columbia River and Cowlitz River Valleys. * WHEN...For the Dense Fog Advisory, until 11 AM PST this morning. For the Air Stagnation Advisory, until 10 PM PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.

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. If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.


Air Stagnation Advisory issued February 5 at 7:24AM PST until February 6 at 10:00PM PST by NWS Portland OR

Effective: Thu February 5, 2026, 7:24 AM
Expires: Thu February 5, 2026, 4:30 PM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Foothills of the Northern and Central Oregon Cascades, East Central Willamette Valley, and North Clark County Lowlands. * WHEN...Until 10 PM PST Friday. * 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 February 5 at 7:24AM PST until February 6 at 10:00PM PST by NWS Portland OR

Effective: Thu February 5, 2026, 7:24 AM
Expires: Thu February 5, 2026, 4:30 PM

* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Air Stagnation Advisory, light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...South Willamette Valley, and Lower Columbia River and Cowlitz River Valleys. * WHEN...For the Dense Fog Advisory, until 11 AM PST this morning. For the Air Stagnation Advisory, until 10 PM PST Friday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous.

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. If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.


Thursday, February 5, 2026

Weather Forecast

Sunny
66.6°F
53.2°F
59°F
41%
0 in
0%
0%
8.1 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 11.6 μg/m3
PM10: 12.05 μg/m3
Carbon Monoxide: 187.25 μg/m3
Nitrogen Dioxide: 4.85 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 57.96 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:24 AM
Sunset: 5:25 PM
Daylight: 10 hrs 2 mins
Moonrise: 10:08 PM
Moon Transit: 3:07 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
10:30 AM - 1:00 PM

Minor Periods

9:38 PM - 11:08 PM
8:33 AM - 10:03 AM

Action Rating: 2 out of 5

Friday, February 6, 2026

Weather Forecast

Partly Cloudy
60.6°F
40.5°F
50°F
59%
0 in
0%
0%
5.1 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 8.42 μg/m3
PM10: 8.96 μg/m3
Carbon Monoxide: 195.89 μg/m3
Nitrogen Dioxide: 4.86 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 53.8 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:24 AM
Sunset: 5:27 PM
Daylight: 10 hrs 4 mins
Moonrise: 11:15 PM
Moon Transit: 3:50 AM
Moonset: 9:20 AM
Moon Phase: Waning Gibbous
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

3:20 AM - 5:50 AM
11:13 AM - 1:43 PM

Minor Periods

12:00 AM - 12:00 AM
8:50 AM - 10:20 AM

Action Rating: 2 out of 5

Saturday, February 7, 2026

Weather Forecast

Cloudy
55.2°F
48°F
51.1°F
76%
0 in
0%
0%
4.9 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 8.31 μg/m3
PM10: 9.21 μg/m3
Carbon Monoxide: 194.81 μg/m3
Nitrogen Dioxide: 3.73 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 69.32 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:24 AM
Sunset: 5:28 PM
Daylight: 10 hrs 7 mins
Moonrise: 12:15 AM
Moon Transit: 4:32 AM
Moonset: 9:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

4:02 AM - 6:32 AM
11:55 AM - 2:25 PM

Minor Periods

9:10 AM - 10:40 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, February 8, 2026

Weather Forecast

Heavy rain
55.6°F
38.4°F
47.7°F
87%
2.13 in
87%
0%
6.3 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 7.13 μg/m3
PM10: 8.59 μg/m3
Carbon Monoxide: 148.17 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 1.87 μg/m3
Ozone: 76.04 μg/m3

Astronomical

Sunrise: 7:19 AM
Sun Transit: 12:24 AM
Sunset: 5:29 PM
Daylight: 10 hrs 10 mins
Moonrise: 12:22 AM
Moon Transit: 5:16 AM
Moonset: 10:02 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

4:46 AM - 7:16 AM
12:40 AM - 3:10 PM

Minor Periods

9:32 AM - 11:02 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, February 9, 2026

Weather Forecast

Patchy rain nearby
48.3°F
29.2°F
39.6°F
91%
0.05 in
73%
0%
4.7 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 2.53 μg/m3
PM10: 3.15 μg/m3
Carbon Monoxide: 140.48 μg/m3
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 83 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:24 AM
Sunset: 5:31 PM
Daylight: 10 hrs 13 mins
Moonrise: 1:28 AM
Moon Transit: 6:01 AM
Moonset: 10:28 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%

Best Times for Fishing or Hunting

Major Periods

5:31 AM - 8:01 AM
1:26 PM - 3:56 PM

Minor Periods

9:58 AM - 11:28 AM
12:58 AM - 2:28 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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