Water Temperature of the Middle Santiam River in Foster, OR

Current Water Temperature

52.9°F

Measurement Time: Friday, May 15, 2026, 10:15 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

44.7°F
Moderate rain
Moderate rain
41°F
44.7°F
88%
WSW 3.6 mph
5.7 mph
41°F
40.1°F
0.1 in
97%
6 mi
1022 mbar
0

Five Day Weather Forecast

Moderate rain
Sat
H: 50°F
L: 33°F
Patchy rain nearby
Sun
H: 61°F
L: 35°F
Sunny
Mon
H: 64°F
L: 32°F
Partly Cloudy
Tue
H: 66°F
L: 35°F
Sunny
Wed
H: 72°F
L: 37°F

Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 2.45 μg/m3
Carbon Monoxide: 127.85 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:06 PM
Sunset: 8:33 PM
Daylight: 14 hrs 51 mins
Moonrise: 5:06 AM
Moon Transit: 1:01 PM
Moonset: 9:11 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

8:31 PM - 11:01 PM
12:31 AM - 3:01 PM

Minor Periods

8:41 PM - 10:11 PM
4:36 AM - 6:06 AM

Action Rating: 6 out of 5

Winter Weather Advisory issued May 15 at 8:54PM PDT until May 16 at 11:00PM PDT by NWS Portland OR

Effective: Fri May 15, 2026, 8:54 PM
Expires: Sat May 16, 2026, 11:00 AM

* WHAT...Snow expected above 4000 feet. Total snow accumulations between 4 to 8 inches, highest amounts at Government Camp. 12 to 18 inches of snow expected above 5000 to 5500 feet. Winds gusting as high as 35 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 11 PM PDT Saturday. * 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
Saturday, May 16, 2026

Weather Forecast

Moderate rain
49.6°F
33.2°F
45°F
85%
0.44 in
92%
3%
6.3 mph
3.5


Air Quality

AQI: 1 - Good
PM2.5: 4 μg/m3
PM10: 5.66 μg/m3
Carbon Monoxide: 133.09 μg/m3
Nitrogen Dioxide: 1.59 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 76.36 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:06 PM
Sunset: 8:33 PM
Daylight: 14 hrs 51 mins
Moonrise: 5:06 AM
Moon Transit: 1:01 PM
Moonset: 9:11 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

8:31 PM - 11:01 PM
12:31 AM - 3:01 PM

Minor Periods

8:41 PM - 10:11 PM
4:36 AM - 6:06 AM

Action Rating: 6 out of 5

Sunday, May 17, 2026

Weather Forecast

Patchy rain nearby
60.8°F
35.3°F
47.4°F
70%
0.06 in
89%
0%
8.3 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 2.62 μg/m3
PM10: 3.55 μg/m3
Carbon Monoxide: 128.09 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 65.92 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:06 PM
Sunset: 8:34 PM
Daylight: 14 hrs 53 mins
Moonrise: 5:49 AM
Moon Transit: 2:06 PM
Moonset: 10:32 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:36 PM - 4:06 PM

Minor Periods

10:02 PM - 11:32 PM
5:19 AM - 6:49 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Sunny
64.3°F
32°F
48.7°F
65%
0 in
0%
0%
8.5 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 4.74 μg/m3
PM10: 6.13 μg/m3
Carbon Monoxide: 132.09 μg/m3
Nitrogen Dioxide: 3.98 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 56.44 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:06 PM
Sunset: 8:35 PM
Daylight: 14 hrs 56 mins
Moonrise: 6:46 AM
Moon Transit: 3:13 PM
Moonset: 11:39 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:43 PM - 5:13 PM

Minor Periods

12:00 AM - 12:00 AM
6:16 AM - 7:46 AM

Action Rating: 3 out of 5

Tuesday, May 19, 2026

Weather Forecast

Partly Cloudy
66°F
34.8°F
50.6°F
71%
0 in
0%
0%
8.3 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 5.81 μg/m3
PM10: 7.57 μg/m3
Carbon Monoxide: 132.35 μg/m3
Nitrogen Dioxide: 3.92 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 63.2 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:06 PM
Sunset: 8:36 PM
Daylight: 14 hrs 58 mins
Moonrise: 7:56 AM
Moon Transit: 4:19 PM
Moonset: 12:39 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:49 PM - 6:19 PM

Minor Periods

7:26 AM - 8:56 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, May 20, 2026

Weather Forecast

Sunny
71.7°F
36.7°F
49.8°F
74%
0 in
0%
0%
6.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.22 μg/m3
PM10: 7.92 μg/m3
Carbon Monoxide: 149.39 μg/m3
Nitrogen Dioxide: 5.8 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 59.08 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:06 PM
Sunset: 8:37 PM
Daylight: 15 hrs mins
Moonrise: 9:15 AM
Moon Transit: 5:20 PM
Moonset: 12:32 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:50 PM - 7:20 PM

Minor Periods

8:45 AM - 10:15 AM
12:02 AM - 1:32 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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