Alton Weather
Illinois, United States
Observed: 28 Sep, 2:39 AM HDT
- Air quality
- Fair OpenWeather index: 2/5
- Wind
- NE 2 m/s
- Sunrise
- 2:53 AM
- Sunset
- 2:48 PM
More conditions
- Humidity
- 84%
- Visibility
- 10 km
- Pressure
- 1018 hPa
- UV index
- Unavailable
- PM2.5
- 15.79 µg/m³
- PM10
- 16.8 µg/m³
- CO
- 192.2 µg/m³
- NO2
- 5.77 µg/m³
- O3
- 34.12 µg/m³
- SO2
- 0.67 µg/m³
- NH3
- 0.29 µg/m³
Rest of today
- Rain ahead today
- 0% peak chance
- Warmest ahead
- 25°C at 12:00 PM
- Evening rain
- 0% peak chance
- Tomorrow's high
- 3°C warmer
Plan your day
Compare citiesTomorrow, 29 Sep
Clear Sky
Forecast sample range: 28°C / 14°C
Outdoor plans 8:00 AM-8:00 PM
3:00 PM · 22°C · 0% rain · 1.6 m/s wind
Lower rain and wind among the available forecast times.
3-hour forecast
Local time · America/Adak
| Time | Conditions | Temp. | Rain chance | Wind |
|---|---|---|---|---|
| 12:00 AM |  Clear Sky |
14°C | 0% | 1.4 m/s E |
| 3:00 AM |  Clear Sky |
14°C | 0% | 1.2 m/s SE |
| 6:00 AM |  Broken Clouds |
22°C | 0% | 1.8 m/s S |
| 9:00 AM |  Scattered Clouds |
28°C | 0% | 2.6 m/s S |
| 12:00 PM | Clear Sky |
27°C | 0% | 2.2 m/s SE |
| 3:00 PM |  Broken Clouds |
22°C | 0% | 1.6 m/s SE |
| 6:00 PM | Overcast Clouds |
20°C | 0% | 2.5 m/s SE |
| 9:00 PM | Overcast Clouds |
19°C | 0% | 2.7 m/s SE |
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