WildfireSmokeCanada

Yellowknife

Hourly regulatory PM2.5 observations from Government of the Northwest Territories.

Northwest Territories · 62.4521, -114.3640 · Updated Sep 02, 2026, 3:57AM MDT · Regulatory monitor
2.6Latest hourly PM2.5 · µg/m³Sep 02, 2:00AM MDT · Preliminary observation
3.012-hour NowCast · µg/m³Good
GoodModel peak · next 24 h2–3 µg/m³ · 2 models available
1AQHI
AQHI context

What this monitor reports

The latest hourly PM2.5 reading is 2.6 µg/m³. The 12-hour NowCast is 3.0 µg/m³ (Good).

The monitor belongs to Government of the Northwest Territories. Real-time readings are preliminary and may be revised.

The air-quality category applies to the NowCast, not to a single hourly reading. Methodology and source policy.

Nearby fires

150 km radius

Fire snapshot updated 2026-09-02 09:50 UTC

Within 150 km, agencies report 11 Out of control.

Out of control11 fires
ZF061-26
64 km away · 16 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
ZF085-26
79 km away · 80 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
ZF044-26
95 km away · 2450 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
ZF033-26
104 km away · 276 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
ZF037-26
109 km away · 43300 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
ZF084-26
111 km away · 90 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
SS035-26
122 km away · 211 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
ZF082-26
126 km away · 20 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
ZF028-26
130 km away · 47000 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
SS053-26
144 km away · 2173 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
ZF077-26
150 km away · 1090 ha · reported 2026-09-02 · NT
distance measured to the incident point
Out of control
Being held0 fires

No being held fires are reported within 150 km.

Under control0 fires

No under control fires are reported within 150 km.

Proximity and wind direction do not prove that a fire caused smoke at this location. Sources: BC Wildfire Service in British Columbia; Natural Resources Canada CWFIS elsewhere.

Recent observations and next 48 hours

monitor + up to three models
20100now−24 h+24 h+48 hµg/m³
HRRR — no coverage

Background bands (US EPA AQI, 24-h basis): Good · Moderate

Forecast at this monitor

NEXT 6 HOURS
Good
0–2 µg/m³ · Sep 02, 9:00AM
NEXT 12 HOURS
Good
1–2 µg/m³ · Sep 02, 9:00AM
NEXT 24 HOURS
Good
2–3 µg/m³ · Sep 03, 4:00AM
NEXT 48 HOURS
Good
2–4 µg/m³ · Sep 03, 5:00PM
Model detail2 models available · 48-hour peak table
ModelPeakTime
FireSmoke1.9 µg/m³Sep 03, 12:00AM
FireWork3.9 µg/m³Sep 03, 5:00PM

Nearby regulatory monitors

in the same province or territory

Source and data quality

Regulatory monitor

Hourly observations are supplied by Government of the Northwest Territories. Real-time data are preliminary and may be revised by the agency.

For information only — not a substitute for official health or emergency advice. Methodology and source policy.