What is the air quality in Williston today?

The current Air Quality Index (AQI) in Williston is 25 (Good). PM2.5 concentration is 6.0 µg/m³.

What is the temperature in Williston right now?

The current temperature in Williston is 8.7°C (feels like 4.1°C). Humidity is 85.2% and wind speed is 41.7 km/h.

Is it safe to go outside in Williston?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Williston, United States

Windy

8.7°C · 85.2% humidity

8.7°

Feels 4.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

24 1am

25 4am

25 7am

25 10am

25 1pm

24 4pm

24 7pm

25 10pm

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.

85.2%

Humidity

41.7 km/h

Wind NNE

1025.9 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.0 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Williston?

Temperature & Precipitation

PM2.56.0 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Williston?

05-30

27.0° 8.7°

05-31

31.4° 18.9°

06-01

33.2° 9.5°

0.06 mm

06-02

16.9° 8.8°

0.25 mm

06-03

26.9° 16.5°

0.06 mm

06-04

21.3° 12.6°

06-05

26.9° 13.4°

3.88 mm

Both models agree Avg diff: 3.9°C

What cities are near Williston?

26 Dickinson 27 Minot 43 Mandan 43 Bismarck 23 Arcola East 23 Dewdney East 23 Regina 38 Moose Jaw 30 Brandon

Get AQI alerts for Williston

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: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-30T09:33 UTC.