48-hour forecast
How the air is expected to change over the next two days.
Modelled hourly outlook
Same basis as the dashboard (CAMS air-quality model). Most reliable over the next 24 hours (solid line); the 24–48 h tail is a lower-confidence trend (dashed).
CAMS · our-calc
48 hours ahead
Predicted air quality
US AQI · PM2.5 µg/m³
Hourly breakdown
| Time | PM2.5 (μg/m³) | PM10 (μg/m³) | AQI | Level |
|---|---|---|---|---|
| Today | ||||
| 8:00 PM | 7.3 | 7.4 | 58 | Moderate |
| 9:00 PM | 7.8 | 8.0 | 51 | Moderate |
| 10:00 PM | 7.9 | 8.0 | 48 | Good |
| 11:00 PM | 9.2 | 9.4 | 45 | Good |
| Tomorrow | ||||
| 12:00 AM | 8.0 | 8.2 | 40 | Good |
| 1:00 AM | 7.5 | 7.7 | 33 | Good |
| 2:00 AM | 2.0 | 2.0 | 30 | Good |
| 3:00 AM | 0.8 | 0.8 | 29 | Good |
| 4:00 AM | 2.6 | 2.6 | 30 | Good |
| 5:00 AM | 2.8 | 2.9 | 29 | Good |
| 6:00 AM | 3.0 | 3.1 | 27 | Good |
| 7:00 AM | 3.4 | 3.5 | 23 | Good |
| 8:00 AM | 3.9 | 3.9 | 22 | Good |
| 9:00 AM | 3.9 | 3.9 | 22 | Good |
| 10:00 AM | 2.3 | 2.4 | 24 | Good |
| 11:00 AM | 2.0 | 2.0 | 26 | Good |
| 12:00 PM | 1.9 | 1.9 | 28 | Good |
| 1:00 PM | 1.9 | 2.0 | 30 | Good |
| 2:00 PM | 1.7 | 1.7 | 31 | Good |
| 3:00 PM | 1.5 | 1.5 | 33 | Good |
| 4:00 PM | 1.4 | 1.4 | 34 | Good |
| 5:00 PM | 1.3 | 1.3 | 34 | Good |
| 6:00 PM | 1.4 | 1.4 | 31 | Good |
| 7:00 PM | 1.4 | 1.4 | 27 | Good |
| 8:00 PM | 1.7 | 1.7 | 23 | Good |
| 9:00 PM | 1.7 | 1.7 | 19 | Good |
| 10:00 PM | 1.7 | 1.7 | 18 | Good |
| 11:00 PM | 1.9 | 1.9 | 16 | Good |
| Thu, Sep 17 | ||||
| 12:00 AM | 2.7 | 2.7 | 18 | Good |
| 1:00 AM | 4.9 | 4.9 | 20 | Good |
| 2:00 AM | 6.7 | 6.8 | 28 | Good |
| 3:00 AM | 7.6 | 7.7 | 32 | Good |
| 4:00 AM | 7.1 | 7.5 | 30 | Good |
| 5:00 AM | 5.7 | 6.0 | 24 | Good |
| 6:00 AM | 4.3 | 4.5 | 23 | Good |
| 7:00 AM | 2.2 | 2.4 | 23 | Good |
| 8:00 AM | 2.9 | 3.1 | 23 | Good |
| 9:00 AM | 3.3 | 3.6 | 23 | Good |
| 10:00 AM | 3.2 | 3.5 | 24 | Good |
| 11:00 AM | 2.7 | 2.9 | 26 | Good |
| 12:00 PM | 2.5 | 2.9 | 30 | Good |
| 1:00 PM | 2.3 | 2.6 | 35 | Good |
| 2:00 PM | 2.2 | 2.4 | 39 | Good |
| 3:00 PM | 2.6 | 2.8 | 42 | Good |
| 4:00 PM | 3.0 | 3.1 | 44 | Good |
| 5:00 PM | 3.2 | 3.3 | 45 | Good |
| 6:00 PM | 3.3 | 3.4 | 45 | Good |
| 7:00 PM | 3.3 | 3.3 | 45 | Good |