Water Temperature of the Middle Santiam River in Foster, OR
Current Water Temperature
Measurement Time: Saturday, December 20, 2025, 8:50 AM PST
Temperature Locations
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Local Points of Interest
Green Peter Reservoir; Green Peter Dam; Billings ParkSponsored Content
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)
North Fork Quartz Creek, Blue River, OR (21.6 mi)
Lookout Creek, Blue River, OR (22.0 mi)
Blue River Lake, Blue River, OR (22.0 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

Humidity: 79%
Feels Like: 46.1°F
Wind: S 2.2 mph
Wind Gusts: 6.7 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast

Sat
H: 50°F
L: 36°F

Sun
H: 46°F
L: 41°F

Mon
H: 45°F
L: 39°F

Tue
H: 47°F
L: 37°F

Wed
H: 47°F
L: 29°F
Air Quality
Nitrogen Dioxide: 4.15 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 67 μg/m3
Astronomical
Sun Transit: 12:08 AM
Sunset: 4:33 PM
Daylight: 8 hrs 50 mins
Moon Transit: 12:47 AM
Moonset: 4:53 PM
Moon Phase: New
Moon Illumination: 0.0%
Best Times for Fishing or Hunting
Major Periods
8:13 PM - 10:43 PM12:17 AM - 2:47 PM
Minor Periods
4:23 PM - 5:53 PM8:15 AM - 9:45 AM
Action Rating: 4 out of 5
Flood Watch issued December 20 at 3:55AM PST until December 20 at 4:00PM PST by NWS Portland OR
Effective: Sat December 20, 2025, 3:55 AM
Expires: Sat December 20, 2025, 4:00 PM
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Oregon, including the following areas, Benton County Lowlands, Cascade Foothills of Marion and Linn Counties, Cascades of Lane County, Cascades of Marion and Linn Counties, Central Coast of Oregon, Central Columbia River Gorge I-84 Corridor, Central Oregon Coast Range, Central Oregon Coast Range Lowlands, Clackamas County Cascade Foothills, Clatsop County Coast, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lane County Cascade Foothills, Lane County Lowlands, Linn County Lowlands, Lower Columbia River, North Oregon Cascades, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, Portland West Hills and Chehalem Mountain, Tillamook County Coast, Tualatin Valley, Upper Hood River 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, Central Columbia River Gorge SR 14 Corridor, Cowlitz County Lowlands, East Clark County Lowlands, Inner Vancouver Metro, North Clark County Lowlands, South Washington Cascade Foothills, South Washington Cascades, South Washington Coast, West Columbia River Gorge SR 14 Corridor, Willapa Hills and Willapa and Wahkiakum Lowlands. * WHEN...Through this afternoon. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Area creeks and streams are running high and could flood with more rain. * ADDITIONAL DETAILS... - Although the heaviest rain has ended, additional river flooding is expected to continue on slower responding rivers. - 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.
Winter Weather Advisory issued December 20 at 3:50AM PST until December 20 at 10:00AM PST by NWS Portland OR
Effective: Sat December 20, 2025, 3:50 AM
Expires: Sat December 20, 2025, 10:00 AM
* WHAT...Snow. Additional snow accumulations up to 1 to 4 inches. Winds gusting as high as 35 mph. * WHERE...In Oregon, North Oregon Cascades and Cascades of Marion and Linn Counties. In Washington, South Washington Cascades. * WHEN...Until 10 AM PST this morning. * 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
Winter Weather Advisory issued December 20 at 12:29PM PST until December 22 at 4:00AM PST by NWS Portland OR
Effective: Sat December 20, 2025, 12:29 PM
Expires: Sun December 21, 2025, 6:00 AM
* WHAT...Snow expected. Total snow accumulations between 6 to 11 inches. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...From 4 AM Sunday to 4 AM PST Monday. * 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
Flood Warning issued December 20 at 3:06AM PST until December 23 at 9:49PM PST by NWS Portland OR
Effective: Sat December 20, 2025, 3:06 AM
Expires: Sat December 20, 2025, 4:00 PM
...The Flood Warning is extended for the following rivers in Oregon... S Yamhill River at McMinnville affecting Yamhill County. Marys River near Philomath affecting Benton County. ...The Flood Warning continues for the following rivers in Oregon... Washington... Luckiamute River near Suver affecting Benton and Polk Counties. Pudding River at Aurora affecting Marion and Clackamas Counties. Cowlitz River at Kelso affecting Cowlitz County. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Pudding River at Aurora. * WHEN...Until late Tuesday evening. * IMPACTS...Above 27.0 feet, expect widespread flooding of numerous secondary roads and agricultural land. * ADDITIONAL DETAILS... - At 2:00 AM PST Saturday the stage was 24.0 feet. - Bankfull stage is 21.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:00 AM PST Saturday was 24.0 feet. - Forecast...The river is expected to rise to a crest of 26.2 feet late this evening. It will then fall below flood stage early Tuesday afternoon. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood
Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued this afternoon at 245 PM PST.
Flood Warning issued December 20 at 9:10AM PST until December 23 at 9:19PM PST by NWS Portland OR
Effective: Sat December 20, 2025, 9:10 AM
Expires: Sat December 20, 2025, 4:00 PM
...The Flood Warning continues for the following rivers in Oregon... Luckiamute River near Suver affecting Benton and Polk Counties. Pudding River at Aurora affecting Clackamas and Marion Counties. ...The Flood Warning is extended for the following rivers in Oregon... Marys River near Philomath affecting Benton County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Pudding River at Aurora. * WHEN...Until late Tuesday evening. * IMPACTS...Above 24.0 feet, expect considerable flooding of low-lying agricultural land and secondary roads from the Whiskey Hill area downstream to the confluence with the Molalla River. * ADDITIONAL DETAILS... - At 9:00 AM PST Saturday the stage was 24.4 feet. - Bankfull stage is 21.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 AM PST Saturday was 24.4 feet. - Forecast...The river nears its crest around 24.6 feet, then will fall below flood stage late Tuesday evening. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued this afternoon at 400 PM PST.
Flood Warning issued December 20 at 3:18PM PST until December 23 at 9:19PM PST by NWS Portland OR
Effective: Sat December 20, 2025, 3:18 PM
Expires: Sun December 21, 2025, 6:00 AM
...The Flood Warning continues for the following rivers in Washington...Oregon... Cowlitz River at Kelso affecting Cowlitz County. Luckiamute River near Suver affecting Benton and Polk Counties. Pudding River at Aurora affecting Clackamas and Marion Counties. ...The Flood Warning is cancelled for the following rivers in Oregon... S Yamhill River at McMinnville affecting Yamhill County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Pudding River at Aurora. * WHEN...Until late Tuesday evening. * IMPACTS...Above 24.0 feet, expect considerable flooding of low-lying agricultural land and secondary roads from the Whiskey Hill area downstream to the confluence with the Molalla River. * ADDITIONAL DETAILS... - At 3:00 PM PST Saturday the stage was 24.7 feet. - Bankfull stage is 21.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM PST Saturday was 24.7 feet. - Forecast...The river is expected to rise to a crest of 24.6 feet late this evening. It will then fall below flood stage late Tuesday evening. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive through flooded areas. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued this afternoon at 430 PM PST.
Weather Forecast
Average Temperature: 41.7°F
Average Humidity: 68%
Wind: 4.5 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 2.07 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 79.64 μg/m3
Astronomical
Sun Transit: 12:08 AM
Sunset: 4:33 PM
Daylight: 8 hrs 50 mins
Moon Transit: 12:47 AM
Moonset: 4:53 PM
Moon Phase: New
Moon Illumination: 0.0%
Best Times for Fishing or Hunting
Major Periods
8:13 PM - 10:43 PM12:17 AM - 2:47 PM
Minor Periods
4:23 PM - 5:53 PM8:15 AM - 9:45 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 43.1°F
Average Humidity: 94%
Wind: 5.4 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 3.75 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 69.08 μg/m3
Astronomical
Sun Transit: 12:08 AM
Sunset: 4:34 PM
Daylight: 8 hrs 50 mins
Moon Transit: 1:39 PM
Moonset: 5:57 PM
Moon Phase: New
Moon Illumination: 1.5%
Best Times for Fishing or Hunting
Major Periods
9:05 PM - 11:35 PM1:09 PM - 3:39 PM
Minor Periods
5:27 PM - 6:57 PM8:57 AM - 10:27 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 42°F
Average Humidity: 80%
Wind: 8.5 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 2.81 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 77.08 μg/m3
Astronomical
Sun Transit: 12:09 AM
Sunset: 4:34 PM
Daylight: 8 hrs 50 mins
Moon Transit: 2:29 PM
Moonset: 7:06 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.5%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM1:59 PM - 4:29 PM
Minor Periods
6:36 PM - 8:06 PM9:30 AM - 11:00 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 42.2°F
Average Humidity: 83%
Wind: 5.1 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 2.89 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 78.64 μg/m3
Astronomical
Sun Transit: 12:09 AM
Sunset: 4:35 PM
Daylight: 8 hrs 51 mins
Moon Transit: 3:17 PM
Moonset: 8:16 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:47 PM - 5:17 PM
Minor Periods
7:46 PM - 9:16 PM9:58 AM - 11:28 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 38.3°F
Average Humidity: 93%
Wind: 7.2 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 4.39 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 69.46 μg/m3
Astronomical
Sun Transit: 12:10 AM
Sunset: 4:36 PM
Daylight: 8 hrs 51 mins
Moon Transit: 4:02 PM
Moonset: 9:26 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM3:32 PM - 6:02 PM
Minor Periods
8:56 PM - 10:26 PM10:20 AM - 11:50 AM
Action Rating: 2 out of 5
