What is the air quality in Williston today?

The current Air Quality Index (AQI) in Williston is 24 (Good). PM2.5 concentration is 5.8 µg/m³.

What is the temperature in Williston right now?

The current temperature in Williston is 28.5°C (feels like 28.5°C). Humidity is 33.6% and wind speed is 122.2 km/h.

Is it safe to go outside in Williston?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 1.4 (Low).

Air Quality in Williston, United States

Windy

28.5°C · 33.6% humidity

28.5°

Feels 28.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

24 6pm

24 9pm

27 12am

27 3am

25 6am

24 9am

24 12pm

24 3pm

View AQI history for Williston →

Williston's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

33.6%

Humidity

122.2 km/h

Wind ESE

1000.6 hPa

Pressure

1.4

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.8 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Williston?

Temperature & Precipitation

PM2.55.8 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX1.4

Low

What is the 7-day forecast for Williston?

06-09

31.3° 17.9°

2.44 mm

06-10

22.1° 10.1°

11.44 mm

06-11

33.4° 19.9°

1.75 mm

06-12

35.8° 11.2°

0.81 mm

06-13

25.3° 14.9°

06-14

26.3° 15.7°

8.44 mm

06-15

23.7° 12.1°

3.0 mm

Both models agree Avg diff: 5.6°C

What cities are near Williston?

24 Dickinson 15 Minot 43 Mandan 43 Bismarck 25 Arcola East 25 Dewdney East 25 Regina 24 Moose Jaw 18 Brandon

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:03 UTC.