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Illinois River near Kerby, Oregon water temperature

Illinois River near Kerby, Oregon · River

The current water temperature at Illinois River near Kerby is 18.8 °C (as of September 20, 2026, source: USGS).

A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.

18.8 °C
Measured: September 20, 2026 · continuously updated
💧 Water 18.8° · ☀️ Air 12.7° · high today 28.2°
Temperature trend of recent weeks
Illinois River near Kerby, Oregon
Photo: Walter Siegmund (talk) · CC BY-SA 3.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 159 data points since July 22, 2026.

Lowest recorded value: 16.0 °C on September 5, 2026 · highest value: 28.1 °C on August 7, 2026.

In September, temperatures have ranged between 16.0 °C and 24.2 °C.

The current value is 0.5 °C below the September average of this series.

Nearby waters

Frequently asked questions

Can you swim at Illinois River near Kerby right now?
The current water temperature is 18.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Illinois River near Kerby?
Currently 18.8 °C (updated continuously).

How warm is at Illinois River near Kerby in September?
In September, the water temperature recently averaged 19.3 °C.

When is the water warmest at Illinois River near Kerby?
Across the measurement record, July is on average the warmest month (24.5 °C).

Open in the BrrChecker app

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