Water Temperature of the Middle Santiam River in Foster, OR

Current Water Temperature

56.3°F 13.5°C
Cold Thermal Gear Required
56.3°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Wednesday, November 11, 2026, 5:40 AM PST

Temperature Locations

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Local Points of Interest

Green Peter Reservoir; Green Peter Dam; Billings Park

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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

69.8°F
Overcast
Conditions: Overcast
Humidity: 42%
Feels Like: 68.4°F
Wind: SE 0.5 mph
Wind Gusts: 5.8 mph
Pressure: 29.97 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 17.6 mi
UV Index: 1.9

Five-Day Weather Forecast

Fog
Wed
H: 70°F
L: 53°F
Overcast
Thu
H: 65°F
L: 50°F
Moderate Rain Showers
Fri
H: 56°F
L: 45°F
Moderate Drizzle
Sat
H: 50°F
L: 46°F
Moderate Rain Showers
Sun
H: 50°F
L: 45°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
6.9 μg/m³
Good
PM10
7.3 μg/m³
Good
Ozone (O3)
88 μg/m³
Photochemical
NO2
1.6 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
138 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 46m daylight
Sunrise 7:01 AM
Solar Noon 11:54 AM
Sunset 4:47 PM
Moon
New • 2%
Moonrise 9:50 AM
Transit 1:55 PM
Moonset 5:59 PM

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
1:25 PM - 3:55 PM

Minor Periods

9:20 AM - 10:50 AM
5:29 PM - 6:59 PM
Action Rating:
Good Action 3/5
Wednesday, November 11, 2026

Weather Forecast

Conditions: Fog
Average Temperature: 59.4°F
Average Humidity: 57%
Chance of Rain: 1%
Wind: 5.6 mph
UV Index: 2.6

Air Quality

EPA Index 2 • Moderate
PM2.5
14.8 μg/m³
Moderate
PM10
15.3 μg/m³
Good
Ozone (O3)
50.2 μg/m³
Photochemical
NO2
5.9 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
165 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 46m daylight
Sunrise 7:01 AM
Solar Noon 11:54 AM
Sunset 4:47 PM
Moon
New • 2%
Moonrise 9:50 AM
Transit 1:55 PM
Moonset 5:59 PM

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
1:25 PM - 3:55 PM

Minor Periods

9:20 AM - 10:50 AM
5:29 PM - 6:59 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 55.9°F
Average Humidity: 71%
Chance of Rain: 3%
Wind: 6.5 mph
UV Index: 2.2

Air Quality

EPA Index 2 • Moderate
PM2.5
19.4 μg/m³
Moderate
PM10
20 μg/m³
Good
Ozone (O3)
44.7 μg/m³
Photochemical
NO2
7.2 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
165.3 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 43m daylight
Sunrise 7:03 AM
Solar Noon 11:54 AM
Sunset 4:46 PM
Moon
Waxing Crescent • 6%
Moonrise 10:43 AM
Transit 2:47 PM
Moonset 6:53 PM

Best Times for Fishing or Hunting

Major Periods

1:51 AM - 4:21 AM
2:17 PM - 4:47 PM

Minor Periods

10:13 AM - 11:43 AM
6:23 PM - 7:53 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Moderate Rain Showers
Average Temperature: 50.5°F
Average Humidity: 79%
Chance of Rain: 89%
Wind: 10.5 mph
UV Index: 1.1

Air Quality

EPA Index 2 • Moderate
PM2.5
5.8 μg/m³
Good
PM10
6.4 μg/m³
Good
Ozone (O3)
74.2 μg/m³
Photochemical
NO2
2.7 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
133 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 41m daylight
Sunrise 7:04 AM
Solar Noon 11:54 AM
Sunset 4:45 PM
Moon
Waxing Crescent • 13%
Moonrise 11:27 AM
Transit 3:37 PM
Moonset 7:52 PM

Best Times for Fishing or Hunting

Major Periods

2:42 AM - 5:12 AM
3:07 PM - 5:37 PM

Minor Periods

10:57 AM - 12:27 PM
7:22 PM - 8:52 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Moderate Drizzle
Average Temperature: 48°F
Average Humidity: 90%
Chance of Rain: 71%
Wind: 6.5 mph
UV Index: 0.6

Air Quality

EPA Index 1 • Good
PM2.5
2.2 μg/m³
Good
PM10
2.7 μg/m³
Good
Ozone (O3)
74.1 μg/m³
Photochemical
NO2
1.1 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
117.8 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 39m daylight
Sunrise 7:05 AM
Solar Noon 11:54 AM
Sunset 4:44 PM
Moon
Waxing Crescent • 21%
Moonrise 12:02 PM
Transit 4:25 PM
Moonset 8:56 PM

Best Times for Fishing or Hunting

Major Periods

3:32 AM - 6:02 AM
3:55 PM - 6:25 PM

Minor Periods

11:32 AM - 1:02 PM
8:26 PM - 9:56 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Moderate Rain Showers
Average Temperature: 48.4°F
Average Humidity: 95%
Chance of Rain: 96%
Wind: 7 mph
UV Index: 0.2

Air Quality

EPA Index 1 • Good
PM2.5
3.3 μg/m³
Good
PM10
3.5 μg/m³
Good
Ozone (O3)
61.2 μg/m³
Photochemical
NO2
2.3 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
133.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 36m daylight
Sunrise 7:07 AM
Solar Noon 11:54 AM
Sunset 4:43 PM
Moon
Waxing Crescent • 31%
Moonrise 12:31 PM
Transit 5:12 PM
Moonset 10:01 PM

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
4:42 PM - 7:12 PM

Minor Periods

12:01 PM - 1:31 PM
9:31 PM - 11:01 PM
Action Rating:
Very Good 4/5
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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