Water Temperature of the Middle Santiam River in Foster, OR

Current Water Temperature

44.8°F

Measurement Time: Friday, March 13, 2026, 9:20 PM PDT

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

47.8°F
Moderate rain
Moderate rain
43°F
47.8°F
94%
WNW 6.9 mph
8.2 mph
43°F
48.6°F
0.23 in
100%
4 mi
1016 mbar
0

Five Day Weather Forecast

Heavy rain
Sat
H: 45°F
L: 27°F
Overcast
Sun
H: 51°F
L: 35°F
Overcast
Mon
H: 65°F
L: 43°F
Sunny
Tue
H: 66°F
L: 39°F
Sunny
Wed
H: 67°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 2.55 μg/m3
PM10: 3.35 μg/m3
Carbon Monoxide: 158.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 96 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:15 PM
Daylight: 11 hrs 51 mins
Moonrise: 5:31 AM
Moon Transit: 9:56 AM
Moonset: 2:29 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

5:21 PM - 7:51 PM
9:26 AM - 11:56 AM

Minor Periods

1:59 PM - 3:29 PM
5:01 AM - 6:31 AM

Action Rating: 2 out of 5

Flood Watch issued March 13 at 2:12PM PDT until March 14 at 5:00PM PDT by NWS Portland OR

Effective: Fri March 13, 2026, 2:12 PM
Expires: Sat March 14, 2026, 3:00 AM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest Oregon, including the following areas, Clackamas County Cascade Foothills, Clatsop County Coast, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lower Columbia River, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, Portland West Hills and Chehalem Mountain, Tillamook County Coast, Tualatin Valley, West Central Willamette Valley, West Columbia River Gorge I-84 Corridor and West Columbia River Gorge of Oregon above 500 ft and southwest Washington, including the following areas, Cowlitz County Lowlands, East Clark County Lowlands, Inner Vancouver Metro, North Clark County Lowlands, South Washington Cascade Foothills, West Columbia River Gorge SR 14 Corridor, Willapa Hills and Willapa and Wahkiakum Lowlands. * WHEN...Through Saturday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Area creeks and streams are running high and could flood with more heavy rain. Landslides and debris flows are possible during this flood event. People, structures, and roads located below steep slopes, in canyons, and near the mouths of canyons may be at serious risk from rapidly moving landslides. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Saturday, March 14, 2026

Weather Forecast

Heavy rain
44.8°F
26.6°F
42.7°F
71%
0.84 in
88%
0%
7.8 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 2.05 μg/m3
PM10: 2.58 μg/m3
Carbon Monoxide: 142.05 μg/m3
Nitrogen Dioxide: 2.07 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 79.16 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:15 PM
Daylight: 11 hrs 51 mins
Moonrise: 5:31 AM
Moon Transit: 9:56 AM
Moonset: 2:29 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

5:21 PM - 7:51 PM
9:26 AM - 11:56 AM

Minor Periods

1:59 PM - 3:29 PM
5:01 AM - 6:31 AM

Action Rating: 2 out of 5

Sunday, March 15, 2026

Weather Forecast

Overcast
50.7°F
35.1°F
42.6°F
59%
0 in
0%
0%
4.5 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 4.49 μg/m3
PM10: 6.93 μg/m3
Carbon Monoxide: 175.73 μg/m3
Nitrogen Dioxide: 3.66 μg/m3
Sulphur Dioxide: 1.52 μg/m3
Ozone: 77.96 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 11 hrs 54 mins
Moonrise: 5:59 AM
Moon Transit: 10:45 AM
Moonset: 3:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

6:10 PM - 8:40 PM
10:15 AM - 12:45 AM

Minor Periods

3:10 PM - 4:40 PM
5:29 AM - 6:59 AM

Action Rating: 3 out of 5

Monday, March 16, 2026

Weather Forecast

Overcast
65.3°F
42.6°F
55.1°F
42%
0 in
0%
0%
5.4 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 4.4 μg/m3
PM10: 6.93 μg/m3
Carbon Monoxide: 166.61 μg/m3
Nitrogen Dioxide: 4.52 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 66.72 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:00 AM
Sunset: 7:18 PM
Daylight: 11 hrs 58 mins
Moonrise: 6:23 AM
Moon Transit: 11:32 AM
Moonset: 4:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

6:57 PM - 9:27 PM
11:02 AM - 1:32 PM

Minor Periods

4:23 PM - 5:53 PM
5:53 AM - 7:23 AM

Action Rating: 4 out of 5

Tuesday, March 17, 2026

Weather Forecast

Sunny
66.4°F
39.2°F
50.3°F
66%
0 in
0%
0%
6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4 μg/m3
PM10: 4.99 μg/m3
Carbon Monoxide: 167.29 μg/m3
Nitrogen Dioxide: 3.69 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 76.32 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:00 AM
Sunset: 7:19 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:44 AM
Moon Transit: 12:18 AM
Moonset: 6:07 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:43 PM - 10:13 PM
11:48 AM - 2:18 PM

Minor Periods

5:37 PM - 7:07 PM
6:14 AM - 7:44 AM

Action Rating: 6 out of 5

Wednesday, March 18, 2026

Weather Forecast

Sunny
66.6°F
41.1°F
49.1°F
68%
0 in
0%
0%
5.4 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 4.5 μg/m3
PM10: 5.1 μg/m3
Carbon Monoxide: 173.67 μg/m3
Nitrogen Dioxide: 4.74 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 72.38 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:00 AM
Sunset: 7:20 PM
Daylight: 12 hrs 4 mins
Moonrise: 7:03 AM
Moon Transit: 10:31 PM
Moonset: 7:21 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

8:30 PM - 11:00 PM
12:00 AM - 12:00 AM

Minor Periods

6:51 PM - 8:21 PM
6:33 AM - 8:03 AM

Action Rating: 4 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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