Shannon, IL Weather Forecast | 5 Day
Updated: Sat Sep 26th 2026 4:15 PM CDT
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Overcast
Sat 9-26-26
Overcast with a high of 66°F and a low of 50°F. There might be light rainfall having a 16% chance. Winds will be light at 10mph and gusts of 14.2mph at 11 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 65% at 6 PM and 60% being its lowest at 5 PM. Barometric pressure is its highest of 30.1inHg at 7 PM, a lowest point of 30.09inHg at 5 PM with an avg 30.1inHg.
- HI: 66°F
- LO: 50°F
- Rainfall: 16%
- Snowfall: 0%
- Wind
9.8 mph - Humidity
67% avg. - UV Index
5 - Air QualityGood
- Sunrise
06:50 AM - Sunset
06:49 PM - Moonrise
06:38 PM - Moonset
06:51 AM - Moon Phase
Full Moon
Overcast
Weather Tomorrow, Sun 9-27-26
Overcast with a high of 69°F and a low of 55°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 7mph and gusts of 13mph at 12 AM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 76% at 11 PM and 46% being its lowest at 3 PM. Barometric pressure is its highest of 30.13inHg at 8 AM, a lowest point of 30.04inHg at 5 PM with an avg 30.09inHg.
- HI: 69°F
- LO: 55°F
- Rainfall: 9%
- Snowfall: 0%
- Wind
6.5 mph - Humidity
60% avg. - UV Index
4.9 - Air QualityModerate
- Sunrise
06:51 AM - Sunset
06:48 PM - Moonrise
06:59 PM - Moonset
07:56 AM - Moon Phase
Waning Gibbous
Sunny
Mon 9-28-26
Sunny with a high of 70°F and a low of 53°F. There's a very small chance of rainfall, only about 6%. Winds will be light at 6mph and gusts of 14.5mph at 10 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 89% at 6 AM and 42% being its lowest at 3 PM. Barometric pressure is its highest of 30.13inHg at 9 AM, a lowest point of 30.01inHg at 8 PM with an avg 30.07inHg.
- HI: 70°F
- LO: 53°F
- Rainfall: 6%
- Snowfall: 0%
- Wind
6 mph - Humidity
68% avg. - UV Index
5.4 - Air QualityModerate
- Sunrise
06:52 AM - Sunset
06:46 PM - Moonrise
07:23 PM - Moonset
09:03 AM - Moon Phase
Waning Gibbous
Overcast
Tue 9-29-26
Overcast with a high of 72°F and a low of 56°F. It will likey rain, having a 76% chance of a downpour with an estimated 0.17in. Wind will be moderate, blowing around 14mph on average and gusts of 23.1mph at 10 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 96% at 11 PM and 56% being its lowest at 2 PM. Barometric pressure is its highest of 30.01inHg at 12 AM, a lowest point of 29.88inHg at 8 PM with an avg 29.95inHg.
- HI: 72°F
- LO: 56°F
- Rainfall: 76% | est. 0.17in
- Snowfall: 0%
- Wind
13.2 mph - Humidity
76% avg. - UV Index
4.8 - Air QualityGood
- Sunrise
06:53 AM - Sunset
06:44 PM - Moonrise
07:52 PM - Moonset
10:13 AM - Moon Phase
Waning Gibbous
Light Rain
Wed 9-30-26
Light Rain with a high of 65°F and a low of 59°F. It will likey rain, having a 93% chance of a downpour with an estimated 1.07in. Wind will be moderate, blowing around 11mph on average and gusts of 24.9mph at 3 AM. High humidity with average of 94% is anticipated, the maximum being 99% at 11 PM and 82% being its lowest at 11 AM. Barometric pressure is its highest of 29.87inHg at 8 PM, a lowest point of 29.84inHg at 5 PM with an avg 29.86inHg.
- HI: 65°F
- LO: 59°F
- Rainfall: 93% | est. 1.07in
- Snowfall: 0%
- Wind
10.1 mph - Humidity
94% avg. - UV Index
0.6 - Air QualityGood
- Sunrise
06:55 AM - Sunset
06:42 PM - Moonrise
08:28 PM - Moonset
11:24 AM - Moon Phase
Waning Gibbous
Light Rain Shower
Thu 10-1-26
Light Rain Shower with a high of 65°F and a low of 61°F. It will likey rain, having a 95% chance of a downpour with an estimated 0.49in. Wind will be moderate, blowing around 11mph on average and gusts of 19.9mph at 11 PM. High humidity with average of 99% is anticipated, the maximum being 99% at 6 PM and 96% being its lowest at 11 PM. Barometric pressure is its highest of 30.03inHg at 11 PM, a lowest point of 29.88inHg at 3 AM with an avg 29.94inHg.
- HI: 65°F
- LO: 61°F
- Rainfall: 95% | est. 0.49in
- Snowfall: 0%
- Wind
10.5 mph - Humidity
99% avg. - UV Index
4 - Air QualityTBA
- Sunrise
06:56 AM - Sunset
06:41 PM - Moonrise
09:14 PM - Moonset
12:34 PM - Moon Phase
Last Quarter
This 5-Day weather forecast is valid for ZIP code 61078, accurately covering the area of Shannon, IL.
Currently
|
66°F |
30.1 inHg.
Barometer 50%
Humidity SE 11.2 mph Wind |
| Overcast | ||
National Outlook
Intense Nor'easter Brings Coastal Flooding to the Mid-Atlantic and Northeast 09-26 to 09-28
Sat Sep 26th 2026, 1:35am PDT
Read
Nor'easter and Heavy Rain Threats Upcoming 09-29 to 10-03
Extended Forecast
Sat Sep 26th 2026, 1:36am PDT
Read
Sat Sep 26th 2026, 1:36am PDT
5 Day Forecast Nearby
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