What is the air quality in Waterloo today?

The current Air Quality Index (AQI) in Waterloo is 64 (Moderate). PM2.5 concentration is 18.26 µg/m³.

What is the temperature in Waterloo right now?

The current temperature in Waterloo is 26.3°C (feels like 26.3°C). Humidity is 78.8% and wind speed is 54.2 km/h.

Air Quality in Waterloo, Sierra Leone

Windy

26.3°C · 78.8% humidity

26.3°

Feels 26.3°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

7 stations

Nearby Monitoring Stations

AQI Forecast

24 3pm

64 6pm

40 9pm

30 12am

27 3am

26 6am

24 9am

24 12pm

Air Quality Index Trend

45h · 10 stn

View full history →

Current PM2.5 concentration in Waterloo is 1.2× the WHO 24-hour guideline of 15 µg/m³.

78.8%

Humidity

54.2 km/h

Wind SSW

1012.8 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

18.26 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Waterloo?

Temperature & Precipitation

PM2.5 Trend

45h · 10 stations

PM2.518.26 µg/m³ ×1.2 WHO

Moderate

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (7 stations within 25 km)

18.26

Median

17.83

Average

7.13

Low

44.02

High

PM2.5 µg/m³ · Model: 5.9 · Bias: -12.4

What is the 7-day forecast for Waterloo?

09-05

26.5° 25.4°

7.19 mm

09-06

26.2° 24.4°

15.25 mm

09-07

26.0° 25.3°

8.0 mm

09-08

26.0° 24.6°

20.81 mm

09-09

26.0° 25.0°

8.88 mm

09-10

26.1° 24.8°

8.94 mm

09-11

26.0° 25.1°

4.94 mm

Both models agree Avg diff: 0.9°C

Where are air quality stations near Waterloo?

Allen Town Police Station

11.2 km PM2.5: 15.4 µg/m³

Lalaba Town Police Station

13.7 km PM2.5: 23.8 µg/m³

Shell Police Station

20.1 km PM2.5: 34.8 µg/m³

Ross Road Hospital

22.7 km PM2.5: 14.0 µg/m³

Mountain Cut

23.3 km PM2.5: 11.6 µg/m³

122

Cottage Hospital

23.4 km PM2.5: 44.0 µg/m³

Freetown City Council

24.7 km PM2.5: 7.1 µg/m³

Connaught Hospital

24.8 km PM2.5: 8.9 µg/m³

34 Hospital

25.1 km PM2.5: 5.7 µg/m³

St Edward's Sec. School

25.6 km PM2.5: 11.3 µg/m³

What cities are near Waterloo?

37 Freetown 42 Goderich 25 Port Loko 25 Lunsar 24 Mile 91 24 Njala 25 Forécariah 25 Makeni 26 Bumpe 25 Conakry

Get AQI alerts for Waterloo

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T18:55 UTC.