What is the air quality in Williston today?

The current Air Quality Index (AQI) in Williston is 35 (Good). PM2.5 concentration is 8.36 µg/m³.

What is the temperature in Williston right now?

The current temperature in Williston is 1.2°C (feels like -4.8°C). Humidity is 75.5% and wind speed is 28.6 km/h.

Is it safe to go outside in Williston?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0 (Low).

Air Quality in Williston, United States

Drizzle

1.2°C · 75.5% humidity

1.2°

Feels -4.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

12 2pm

25 5pm

25 8pm

25 11pm

50 2am

75 5am

75 8am

136 11am

136

156

75.5%

Humidity

28.6 km/h

Wind NW

1021.4 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Williston?

Temperature & Precipitation

PM2.58.36 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Williston?

04-09

3.6° -3.9°

0.13 mm

04-10

9.9° -0.8°

0.06 mm

04-11

13.8° 5.5°

04-12

15.3° 7.5°

7.5 mm

04-13

13.5° 1.9°

0.94 mm

04-14

1.9° -4.3°

1.25 mm

04-15

7.4° 0.3°

Both models agree Avg diff: 3.9°C

What cities are near Williston?

41 Dickinson 35 Minot 35 Mandan 35 Bismarck 25 Arcola East 25 Dewdney East 31 Regina 43 Moose Jaw 53 Brandon

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T17:31 UTC.