Water Temperature of the Middle Santiam River in Foster, OR

Current Water Temperature

45.1°F

Measurement Time: Monday, July 7, 2025, 5:00 AM PDT

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 / 227 meters

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)
Lookout Creek, Blue River, OR (22.0 mi)
Blue River Lake, Blue River, OR (22.0 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)
Blowout Creek, Detroit, OR (25.0 mi)
Smith River, Belknap Springs, OR (26.1 mi)

Weather for Foster, Oregon

Current Weather

83.2°F
Sunny
Conditions: Sunny
Humidity: 51%
Feels Like: 85.5°F
Wind: WNW 6 mph
Wind Gusts: 7 mph
Pressure: 29.92 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 8.3

Five Day Weather Forecast

Sunny
Mon
H: 87°F
L: 56°F
Sunny
Tue
H: 83°F
L: 49°F
Cloudy
Wed
H: 75°F
L: 60°F
Mist
Thu
H: 76°F
L: 48°F
Sunny
Fri
H: 89°F
L: 45°F

Air Quality

PM2.5: 10.18 μg/m3
PM10: 11.66 μg/m3
Carbon Monoxide: 301.55 μg/m3
Nitrogen Dioxide: 3.33 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 119 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:15 PM
Sunset: 8:57 PM
Daylight: 15 hrs 23 mins
Moonrise: 6:57 PM
Moon Transit: 11:01 PM
Moonset: 2:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.7%

Best Times for Fishing or Hunting

Major Periods

5:36 AM - 8:06 AM
12:00 AM - 12:00 AM

Minor Periods

6:27 PM - 7:57 PM
1:54 AM - 3:24 AM

Action Rating: 3 out of 5

Fire Weather Watch issued July 6 at 1:40PM PDT until July 8 at 11:00PM PDT by NWS Pendleton OR

Effective: Sun July 6, 2025, 1:40 PM
Expires: Mon July 7, 2025, 2:00 PM

...DRY THUNDERSTORMS EXPECTED FOR TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR ABUNDANT LIGHTNING FOR THE CENTRAL MOUNTAINS OF OREGON AND SOUTHERN DESCHUTES NATIONAL FOREST... .The ridge of high pressure is anticipated to break down Tuesday afternoon with a dry cold front making its way into the region. Ahead of the front, instability is expected to increase along with an influx of mid-level moisture. This will lead to convection along the central mountains of Oregon and through the southern Deschutes National Forest Tuesday afternoon. Dry thunderstorms will be isolated. The National Weather Service in Pendleton has issued a Fire Weather Watch for abundant lightning, which is in effect from Tuesday afternoon through Tuesday evening. * AFFECTED AREA...Fire Weather Zones 700 Central Mountains of Oregon and 705 Southern Deschutes National Forest. * TIMING...From Tuesday afternoon through Tuesday evening. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. * THUNDERSTORMS...Storms are mostly expected to be dry with rainfall amounts less than a tenth of an inch, though a few storms could produce rainfall amounts in excess of a tenth of an inch. * OUTFLOW WINDS...As high as 45 mph.

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Fire Weather Watch issued July 6 at 1:40PM PDT until July 8 at 11:00PM PDT by NWS Pendleton OR

Effective: Sun July 6, 2025, 1:40 PM
Expires: Mon July 7, 2025, 2:00 PM

...DRY THUNDERSTORMS EXPECTED FOR TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR ABUNDANT LIGHTNING FOR THE CENTRAL MOUNTAINS OF OREGON AND SOUTHERN DESCHUTES NATIONAL FOREST... .The ridge of high pressure is anticipated to break down Tuesday afternoon with a dry cold front making its way into the region. Ahead of the front, instability is expected to increase along with an influx of mid-level moisture. This will lead to convection along the central mountains of Oregon and through the southern Deschutes National Forest Tuesday afternoon. Dry thunderstorms will be isolated. The National Weather Service in Pendleton has issued a Fire Weather Watch for abundant lightning, which is in effect from Tuesday afternoon through Tuesday evening. * AFFECTED AREA...Fire Weather Zones 700 Central Mountains of Oregon and 705 Southern Deschutes National Forest. * TIMING...From Tuesday afternoon through Tuesday evening. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. * THUNDERSTORMS...Storms are mostly expected to be dry with rainfall amounts less than a tenth of an inch, though a few storms could produce rainfall amounts in excess of a tenth of an inch. * OUTFLOW WINDS...As high as 45 mph.

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Monday, July 7, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 72.4°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 7.61 μg/m3
PM10: 8.21 μg/m3
Carbon Monoxide: 326.49 μg/m3
Nitrogen Dioxide: 9.65 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 88.72 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:15 PM
Sunset: 8:57 PM
Daylight: 15 hrs 23 mins
Moonrise: 6:57 PM
Moon Transit: 11:01 PM
Moonset: 2:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.7%

Best Times for Fishing or Hunting

Major Periods

5:36 AM - 8:06 AM
12:00 AM - 12:00 AM

Minor Periods

6:27 PM - 7:57 PM
1:54 AM - 3:24 AM

Action Rating: 3 out of 5

Tuesday, July 8, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 69.4°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 8.3 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 11.64 μg/m3
PM10: 13.2 μg/m3
Carbon Monoxide: 320.42 μg/m3
Nitrogen Dioxide: 10.27 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 92.04 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:15 PM
Sunset: 8:56 PM
Daylight: 15 hrs 22 mins
Moonrise: 7:56 PM
Moon Transit: 11:55 PM
Moonset: 3:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

6:28 AM - 8:58 AM
12:00 AM - 12:00 AM

Minor Periods

7:26 PM - 8:56 PM
2:34 AM - 4:04 AM

Action Rating: 3 out of 5

Wednesday, July 9, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 66.7°F
Average Humidity: 78%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 5.03 μg/m3
PM10: 5.48 μg/m3
Carbon Monoxide: 270.91 μg/m3
Nitrogen Dioxide: 8.47 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 57.48 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:15 PM
Sunset: 8:56 PM
Daylight: 15 hrs 21 mins
Moonrise: 8:47 PM
Moon Transit: 12:00 AM
Moonset: 3:55 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:22 AM - 9:52 AM

Minor Periods

8:17 PM - 9:47 PM
3:25 AM - 4:55 AM

Action Rating: 3 out of 5

Thursday, July 10, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 64.3°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 2.16 μg/m3
PM10: 2.46 μg/m3
Carbon Monoxide: 202.22 μg/m3
Nitrogen Dioxide: 2.99 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 39.92 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:15 PM
Sunset: 8:55 PM
Daylight: 15 hrs 19 mins
Moonrise: 9:29 PM
Moon Transit: 12:50 AM
Moonset: 4:57 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 AM
8:17 AM - 10:47 AM

Minor Periods

8:59 PM - 10:29 PM
4:27 AM - 5:57 AM

Action Rating: 5 out of 5

Friday, July 11, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 67.6°F
Average Humidity: 52%
Chance of Rain: 0%
Wind: 7.8 mph
UV Index: 0

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:15 PM
Sunset: 8:55 PM
Daylight: 15 hrs 18 mins
Moonrise: 10:02 PM
Moon Transit: 1:44 AM
Moonset: 6:06 AM
Moon Phase: Full
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

1:14 AM - 3:44 AM
9:11 AM - 11:41 AM

Minor Periods

9:32 PM - 11:02 PM
5:36 AM - 7:06 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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