Oldman River near Lethbridge water level

Name: Oldman River near Lethbridge water level (Environment and Climate Change Canada – Water Survey of Canada)
Creator: Environment and Climate Change Canada – Water Survey of Canada
License: https://open.canada.ca/en/open-government-licence-canada

River gauge, Oldman River, Alberta, Canada

Directions

Normal for mid-October

Water level

0.42m Up 0.02 m over the last 24 hours

Measured Oct 17, 2026, 04:25 PM MDT (1 hour ago)

Flow: 32.3 m³/s

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %)

What this means

The gauge at Oldman River near Lethbridge reads 0.42 m, a normal level for mid-October.

The median for mid-October is 0.41 m, based on 15 years of readings, so the water level is 0.01 m above typical. On the same day last year the reading was 0.27 m, a difference of +0.16 m.

The water is rising: up 0.02 m over the past 24 hours. Over the past 30 days it has moved between 0.31 m and 0.67 m.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 15 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 0.41 m0.01 m above the median for this date
Normal for this date: 0.26 m – 0.82 m8 years in 10 fall in this range (15 years of records)
Same day last year: 0.27 m+0.16 m
Lowest and highest in 30 days: 0.31 m – 0.67 m
Lowest and highest in 12 months: 0.19 m – 0.96 m

Conditions at Oldman River near Lethbridge

Paddlers should check the trend as well as the level; summer storms can raise rivers quickly.

Flood advisories come from the provincial river forecast centre.

About the Oldman River

The Oldman River is a river in southern Alberta, Canada. It flows roughly west to east from the Rocky Mountains, through the communities of Fort Macleod, Lethbridge, and on to Grassy Lake, where it joins the Bow River to form the South Saskatchewan River, which eventually drains into the Hudson Bay.

Weather at the gauge

No rain in the last 3 days.

17 Sat 23° 10° – Wind 48 km/h

18 Sun 13° 3° – Wind 15 km/h

19 Mon 14° 0° – Wind 11 km/h

20 Tue 12° 5° – Wind 9 km/h

21 Wed 21° 5° – Wind 18 km/h

22 Thu 20° 11° – Wind 33 km/h

23 Fri 12° 3° – Wind 20 km/h

Forecast: Open-Meteo

Sunrise 07:57 AM Sunset 06:38 PM Daylight 10 hr, 41 min First quarter 44%

Map

Other gauges on the Oldman River

Gauge	Level	Compared with normal	24 hours	Distance
Oldman River near BrocketRiver gauge, Oldman River	1.11 m	Normal	±0	71 km
Oldman River near the MouthRiver gauge, Oldman River	2.43 m	Normal	−0.01 m	80 km
Oldman River at Range Road No. 13ARiver gauge, Oldman River	5.83 m	Normal	−0.01 m	88 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
St. Mary River near LethbridgeRiver gauge, St. Mary River	1.33 m	Very high	+0.05 m	15 km
Piyami Drain near Picture ButteRiver gauge, Piyami Drain	0.55 m	Normal	−0.03 m	15 km
Pothole Creek at Russell'S RanchRiver gauge, Pothole Creek	0.54 m	Normal	±0	16 km
Prairie Blood Coulee near LethbridgeRiver gauge, Prairie Blood Coulee	0.63 m	Normal	±0	17 km
Little Bow River near the MouthRiver gauge, Little Bow River	0.52 m	High	−0.02 m	33 km
Bountiful Coulee Inflow near CranfordRiver gauge, Bountiful Coulee Inflow	1.90 m	Very high	±0	40 km
Milk River Ridge ReservoirReservoir	1,031.97 m	Very high	±0	41 km
Magrath Irrigation District Canal near Spring CouleeCanal gauge, Magrath Irrigation District Canal	0.44 m	High	−0.02 m	42 km

Questions and answers

Is the Oldman River near Lethbridge higher than last year?

Yes, it is 0.16 m higher than on the same day last year, when the reading was 0.27 m.

What is a normal level for the Oldman River near Lethbridge in mid-October?

The median for mid-October is 0.41 m. In 8 years out of 10 the reading falls between 0.26 m and 0.82 m, based on 15 years of records.

Is the river level the same as the depth of the water?

No. The reading is measured from a fixed zero mark at the gauge, so 0.42 m on the gauge does not mean the water is that deep.

What is the water level of Oldman River near Lethbridge today?

On Oct 17, 2026, 04:25 PM MDT, the water level was 0.42 m. Up 0.02 m over the last 24 hours.

Is Oldman River near Lethbridge rising or falling?

Up 0.02 m over the last 24 hours. Up 0.07 m over the last 7 days.

Is the level of Oldman River near Lethbridge normal?

Normal for mid-October. Compared with 15 years of daily readings for this time of year.

How often is this data updated?

Environment and Climate Change Canada – Water Survey of Canada publishes a new reading every hour. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: Environment and Climate Change Canada – Water Survey of Canada
Station code: eccc:05AD007 (Agency page)
Coordinates: 49.70942, -112.86288 (WGS84)
Vertical datum: station datum (assumed datum)
Update interval: every hour
Licence: Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Canada

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	0.42 m	2026-10-17 22:25	Provisional
Flow	32.3 m³/s	2026-10-17 22:25	Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Oldman River near Lethbridge (eccc:05AD007). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/canada/alberta/oldman-river-near-lethbridge

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer