National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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KLAMATH RIVER - IRON GATE (IRGC1)
Latitude: 41.93º NLongitude: 122.44º WElevation: 2162 Feet
Location: Siskiyou County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Jun 25 2025 at 7:04 AM PDTNext Issuance: Jun 26 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View US Geological Survey (USGS) Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ081)
Tonight: Partly cloudy early this evening then clearing. Lows in the lower to mid 50s. Northwest winds 10 to 15 mph decreasing to around 5 mph well after midnight.

Thursday: Sunny. Highs in the mid 70s to mid 80s. North winds 5 to 10 mph.

Thursday Night: Mostly clear. Lows in the lower to mid 50s. North winds 10 to 15 mph decreasing to around 5 mph well after midnight.

Friday: Sunny. Highs in the lower 80s to lower 90s. North winds 5 to 10 mph.

Friday Night: Clear. Lows in the lower to mid 50s. North winds 10 to 15 mph decreasing to around 5 mph well after midnight.

Saturday and Saturday Night: Clear. Highs in the mid 80s to mid 90s. Lows in the lower 50s to lower 60s.

Sunday: Sunny. Highs 90 to 100.

Sunday Night: Mostly clear. Lows in the lower to mid 60s.

Monday: Sunny in the morning, then partly cloudy with a slight chance of thunderstorms in the afternoon. Highs in the mid 80s to mid 90s.

Monday Night: Mostly cloudy with a chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 50s to lower 60s.

Tuesday: Sunny. Slight chance of thunderstorms in the afternoon. Highs in the lower 80s to lower 90s.

Tuesday Night and Wednesday: Mostly clear. Lows in the mid 50s to lower 60s. Highs in the mid 80s to mid 90s.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Medford Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.