Saint Elmo, IL Weather Forecast | 5 Day
Updated: Tue Sep 15th 2026 7:15 AM CDT
Ask About Weather
Test our Weather Chatbot. It provides up to 10 days of forecast information!
Sunny
Tue 9-15-26
Sunny with a high of 99°F and a low of 68°F. Rainfall expected to have a 68% chance with an estimated 0.64in. Wind will be moderate, blowing around 15mph on average and gusts of 27.8mph at 8 AM. The humidity will be on the higher side, averaging about 64%, the maximum being 97% at 9 PM and 29% being its lowest at 3 PM. Barometric pressure is its highest of 30.19inHg at 9 PM, a lowest point of 29.99inHg at 4 PM with an avg 30.08inHg.
- HI: 99°F
- LO: 68°F
- Rainfall: 68% | est. 0.64in
- Snowfall: 0%
- Wind
15 mph - Humidity
64% avg. - UV Index
7.3 - Air QualityGood
- Sunrise
06:36 AM - Sunset
07:04 PM - Moonrise
11:44 AM - Moonset
09:17 PM - Moon Phase
Waxing Crescent
Light Rain Shower
Weather Tomorrow, Wed 9-16-26
Light Rain Shower with a high of 90°F and a low of 72°F. It will likey rain, having a 78% chance of a downpour with an estimated 0.37in. Wind will be moderate, blowing around 11mph on average and gusts of 21.3mph at 2 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 98% at 5 AM and 50% being its lowest at 5 PM. Barometric pressure is its highest of 30.26inHg at 11 AM, a lowest point of 30.13inHg at 1 AM with an avg 30.19inHg.
- HI: 90°F
- LO: 72°F
- Rainfall: 78% | est. 0.37in
- Snowfall: 0%
- Wind
10.5 mph - Humidity
77% avg. - UV Index
7 - Air QualityGood
- Sunrise
06:37 AM - Sunset
07:02 PM - Moonrise
12:51 PM - Moonset
09:58 PM - Moon Phase
First Quarter
Overcast
Thu 9-17-26
Overcast with a high of 91°F and a low of 76°F. There might be light rainfall having a 13% chance with an estimated 0in. Winds will be light at 10mph and gusts of 18.6mph at 11 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 86% at 6 AM and 43% being its lowest at 4 PM. Barometric pressure is its highest of 30.21inHg at 11 AM, a lowest point of 30.1inHg at 5 PM with an avg 30.15inHg.
- HI: 91°F
- LO: 76°F
- Rainfall: 13% | est. 0in
- Snowfall: 0%
- Wind
9.6 mph - Humidity
67% avg. - UV Index
7 - Air QualityGood
- Sunrise
06:38 AM - Sunset
07:01 PM - Moonrise
01:53 PM - Moonset
10:47 PM - Moon Phase
First Quarter
Sunny
Fri 9-18-26
Sunny with a high of 91°F and a low of 72°F. Rainfall expected to have a 68% chance with an estimated 0.17in. Wind will be moderate, blowing around 13mph on average and gusts of 22.7mph at 8 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 97% at 5 AM and 46% being its lowest at 5 PM. Barometric pressure is its highest of 30.15inHg at 1 AM, a lowest point of 29.99inHg at 11 PM with an avg 30.08inHg.
- HI: 91°F
- LO: 72°F
- Rainfall: 68% | est. 0.17in
- Snowfall: 0%
- Wind
12.1 mph - Humidity
75% avg. - UV Index
8 - Air QualityGood
- Sunrise
06:39 AM - Sunset
06:59 PM - Moonrise
02:47 PM - Moonset
11:42 PM - Moon Phase
First Quarter
Sunny
Sat 9-19-26
Sunny with a high of 96°F and a low of 75°F. Rainfall expected to have a 57% chance with an estimated 0.07in. Wind will be moderate, blowing around 14mph on average and gusts of 27.3mph at 7 AM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 81% at 5 AM and 31% being its lowest at 4 PM. Barometric pressure is its highest of 29.99inHg at 12 AM, a lowest point of 29.83inHg at 4 PM with an avg 29.91inHg.
- HI: 96°F
- LO: 75°F
- Rainfall: 57% | est. 0.07in
- Snowfall: 0%
- Wind
13.2 mph - Humidity
60% avg. - UV Index
9 - Air QualityGood
- Sunrise
06:40 AM - Sunset
06:57 PM - Moonrise
03:33 PM - Moonset
Does not set today - Moon Phase
First Quarter
Sunny
Sun 9-20-26
Sunny with a high of 94°F and a low of 70°F. There might be light rainfall having a 17% chance with an estimated 0in. Wind will be moderate, blowing around 11mph on average and gusts of 23.3mph at 11 PM. Humidity levels should be comfortable, sitting around 50% on average, the maximum being 79% at 1 AM and 28% being its lowest at 4 PM. Barometric pressure is its highest of 29.91inHg at 10 AM, a lowest point of 29.79inHg at 4 PM with an avg 29.85inHg.
- HI: 94°F
- LO: 70°F
- Rainfall: 17% | est. 0in
- Snowfall: 0%
- Wind
10.5 mph - Humidity
50% avg. - UV Index
8 - Air QualityTBA
- Sunrise
06:41 AM - Sunset
06:56 PM - Moonrise
04:11 PM - Moonset
12:41 AM - Moon Phase
Waxing Gibbous
This 5-Day weather forecast is valid for ZIP code 62458, accurately covering the area of Saint Elmo, IL.
Currently
|
69°F |
30.06 inHg.
Barometer 75%
Humidity SSE 14.8 mph Wind |
| Sunny | ||
National Outlook
Rain and Storms in the West, Heat Persists in the South - 09-14 to 09-16
Mon Sep 14th 2026, 5:26am PDT
Read
Changing Weather Patterns Bring Rain and Storms: 09-16 to 09-20
Extended Forecast
Mon Sep 14th 2026, 5:30am PDT
Read
Mon Sep 14th 2026, 5:30am PDT
5 Day Forecast Nearby
More Local Information
Bookmark and Share
