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Belleville, IL Weather Forecast | 5 Day
Updated: Sun Jul 20th 2025 1:45 AM CDT
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Overcast
Sun 7-20
Overcast with a high of 94°F and a low of 75°F. Winds will be light at 10mph and gusts of 14.6mph at 9 PM. The humidity will be on the higher side, averaging about 79%, the maximum being 95% at 2 AM and 57% being its lowest at 3 PM. Barometric pressure is its highest of 29.95inHg at 9 AM, a lowest point of 29.84inHg at 8 PM with an avg 29.9inHg.
- HI: 94°F
- LO: 75°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
9.2 mph - Humidity
79% avg. - UV Index
2.6 - Air QualityModerate
- Sunrise
05:52 AM - Sunset
08:20 PM - Moonrise
01:20 AM - Moonset
04:53 PM - Moon Phase
Waning Crescent

Heavy Rain
Mon 7-21
Heavy Rain with a high of 91°F and a low of 76°F. It will likey rain, having a 89% chance of a downpour with an estimated 1.03in. Wind will be moderate, blowing around 13mph on average and gusts of 16.5mph at 2 PM. High humidity with average of 87% is anticipated, the maximum being 99% at 4 AM and 72% being its lowest at 1 PM. Barometric pressure is its highest of 29.97inHg at 7 AM, a lowest point of 29.84inHg at 12 AM with an avg 29.91inHg.
- HI: 91°F
- LO: 76°F
- Rainfall: 89% | est. 1.03in
- Snowfall: 0%
- Wind
12.3 mph - Humidity
87% avg. - UV Index
2.4 - Air QualityModerate
- Sunrise
05:53 AM - Sunset
08:19 PM - Moonrise
02:07 AM - Moonset
06:04 PM - Moon Phase
Waning Crescent

Partly Cloudy
Tue 7-22
Partly Cloudy with a high of 97°F and a low of 76°F. Winds will be light at 8mph and gusts of 14.6mph at 10 PM. High humidity with average of 83% is anticipated, the maximum being 99% at 4 AM and 63% being its lowest at 4 PM. Barometric pressure is its highest of 29.98inHg at 10 AM, a lowest point of 29.93inHg at 5 PM with an avg 29.96inHg.
- HI: 97°F
- LO: 76°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
7.6 mph - Humidity
83% avg. - UV Index
2.7 - Air QualityModerate
- Sunrise
05:54 AM - Sunset
08:19 PM - Moonrise
03:05 AM - Moonset
07:07 PM - Moon Phase
Waning Crescent

Partly Cloudy
Wed 7-23
Partly Cloudy with a high of 95°F and a low of 78°F. Wind will be moderate, blowing around 11mph on average and gusts of 17.7mph at 11 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 96% at 1 AM and 53% being its lowest at 3 PM. Barometric pressure is its highest of 30.01inHg at 11 AM, a lowest point of 29.94inHg at 5 PM with an avg 29.97inHg.
- HI: 95°F
- LO: 78°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
10.1 mph - Humidity
75% avg. - UV Index
2.7 - Air QualityGood
- Sunrise
05:55 AM - Sunset
08:18 PM - Moonrise
04:12 AM - Moonset
07:59 PM - Moon Phase
Waning Crescent

Patchy Rain Nearby
Thu 7-24
Scattered showers with a high of 92°F and a low of 70°F. Rainfall expected in the surrounding area to have a 66% chance with an estimated 0.01in. Wind will be moderate, blowing around 14mph on average and gusts of 18.1mph at 12 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 93% at 7 PM and 61% being its lowest at 1 PM. Barometric pressure is its highest of 30.06inHg at 9 AM, a lowest point of 29.97inHg at 4 PM with an avg 30.02inHg.
- HI: 92°F
- LO: 70°F
- Rainfall: 66% | est. 0.01in
- Snowfall: 0%
- Wind
13.2 mph - Humidity
77% avg. - UV Index
0 - Air QualityTBA
- Sunrise
05:55 AM - Sunset
08:17 PM - Moonrise
05:25 AM - Moonset
08:39 PM - Moon Phase
New Moon

Sunny
Fri 7-25
Sunny with a high of 89°F and a low of 70°F. Winds will be light at 8mph and gusts of 15.4mph at 1 AM. High humidity with average of 82% is anticipated, the maximum being 94% at 1 AM and 63% being its lowest at 4 PM. Barometric pressure is its highest of 30.03inHg at 12 AM, a lowest point of 29.93inHg at 5 PM with an avg 29.98inHg.
- HI: 89°F
- LO: 70°F
- Rainfall: 0%
- Snowfall: 0%
- Wind
7.4 mph - Humidity
82% avg. - UV Index
7 - Air QualityTBA
- Sunrise
05:56 AM - Sunset
08:16 PM - Moonrise
06:38 AM - Moonset
09:12 PM - Moon Phase
Waxing Crescent
Currently
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77°F |
29.93 inHg.
Barometer 96%
Humidity SW 11.2 mph Wind |
Mist |