Lac des Deux Montagnes
No dataInsufficient data for gauge
Current Weather
Sep 2017°CMostly Cloudy
Wind ENE 5 km/h
Humidity 58%
Mainly cloudy
Environment Canada — Lachute - Saint-Jérôme
vs. Last Year
No data available
7-Day Trend
No trend data
Seasonal Position
—
Seasonal Outlook
Typical next 7 days
This lake usually drops slightly over the next week.
Typical next 14 days
Over two weeks, levels typically rises moderately.
Based on 36 years of seasonal patterns. This is a historical seasonal pattern, not a forecast.
Fish Consumption Advisories (12 species)
The following consumption advisories are in effect for fish caught in Lac des Deux Montagnes.
Achigan
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 30–35 cm | 8/month | — |
| Mercure | 25–30 cm | 8/month | — |
| Mercure | 35+ cm | 4/month | — |
Barbotte brune
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 25–30 cm | 8/month | — |
| Mercure | 30+ cm | 8/month | — |
| Mercure | 20–25 cm | 8/month | — |
Barbue de rivière
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 40–45 cm | 8/month | — |
| Mercure | 45–50 cm | 8/month | — |
| Mercure | 50+ cm | 8/month | — |
Baret
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 20–25 cm | 8/month | — |
| Mercure | 25+ cm | 8/month | — |
| Mercure | 15–20 cm | 8/month | — |
Doré jaune
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 50+ cm | 4/month | — |
| Mercure | 30–40 cm | 4/month | — |
| Mercure | 40–50 cm | 4/month | — |
Doré noir
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 20–25 cm | 8/month | — |
Grand brochet
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 40–55 cm | 8/month | — |
| Mercure | 55–70 cm | 4/month | — |
| Mercure | 70+ cm | 4/month | — |
Laquaiche
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 30–35 cm | 8/month | — |
| Mercure | 25–30 cm | 8/month | — |
| Mercure | 35+ cm | 8/month | — |
Malachigan
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 35–40 cm | 8/month | — |
| Mercure | 40–45 cm | 8/month | — |
| Mercure | 45+ cm | 8/month | — |
Maskinongé
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 55–70 cm | 4/month | — |
| Mercure | 40–55 cm | 8/month | — |
| Mercure | 70+ cm | 4/month | — |
Meunier noir
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 30–35 cm | 8/month | — |
| Mercure | 35–40 cm | 8/month | — |
| Mercure | 40+ cm | 8/month | — |
Perchaude
| Contaminant | Size | General pop. | Sensitive pop. |
|---|---|---|---|
| Mercure | 15–20 cm | 8/month | — |
| Mercure | 25+ cm | 8/month | — |
| Mercure | 20–25 cm | 8/month | — |
Source: Guide de consommation du poisson (MELCCFP) (2025). Advisory data is updated annually.
Water Level — Last 30 Days
No recent readings
Technical details
- Current level
- —
- Reference value
- —
- Percentile for date
- —
- Years of record
- —
- Source station
- DEUX MONTAGNES (LAC DES) A POINTE-CALUMET (02OA105)
- Est. average depth
- —
- Relationship type
- direct_lake
- Mapping confidence
- medium
- Today's normal range
- —
- Same-date historical range
- —
- 30-day change
- —
- Data confidence
- —
- Observed at
- —
- Last snapshot
- —
Data source: ECCC Water Office — Station 02OA105. Water level readings are provisional and subject to revision. This is not a navigation or flood-warning service.