Alton Weather
Illinois, United States
Observed: 28 Sep, 1:56 AM HDT
- Air quality
- Fair OpenWeather index: 2/5
- Wind
- NE 4 mph
- Sunrise
- 2:53 AM
- Sunset
- 2:48 PM
More conditions
- Humidity
- 82%
- Visibility
- 10 km
- Pressure
- 1018 hPa
- UV index
- Unavailable
- PM2.5
- 15.89 µg/m³
- PM10
- 16.88 µg/m³
- CO
- 188.2 µg/m³
- NO2
- 5.08 µg/m³
- O3
- 39.14 µg/m³
- SO2
- 0.9 µg/m³
- NH3
- 0.28 µg/m³
Rest of today
- Rain ahead today
- 0% peak chance
- Warmest ahead
- 77°F at 12:00 PM
- Evening rain
- 0% peak chance
- Tomorrow's high
- 5°F warmer
Plan your day
Compare citiesWed, 30 Sep
Overcast Clouds
Forecast sample range: 82°F / 64°F
Outdoor plans 8:00 AM-8:00 PM
12:00 PM · 82°F · 0% rain · 5.8 mph 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 |  Overcast Clouds |
64°F | 0% | 4.9 mph S |
| 3:00 AM |  Overcast Clouds |
64°F | 0% | 5.7 mph SE |
| 6:00 AM | Broken Clouds |
74°F | 0% | 5.2 mph S |
| 9:00 AM | Broken Clouds |
81°F | 0% | 6.3 mph S |
| 12:00 PM | Broken Clouds |
82°F | 0% | 5.8 mph SE |
| 3:00 PM |  Scattered Clouds |
80°F | 0% | 10.3 mph S |
| 6:00 PM | Overcast Clouds |
77°F | 0% | 10.6 mph S |
| 9:00 PM | Overcast Clouds |
74°F | 0% | 8.1 mph S |
Weather map
Open map
Alton
Map © OpenStreetMap · Weather © OpenWeather
Rain active