Saint Charles, MO Weather Forecast | 10 Days
Updated: Sun Nov 1st 2026 10:15 PM CST
Sun, 11-1
66°F
59°F
59°F
Mon, 11-2
71°F
59°F
59°F
Tue, 11-3
70°F
60°F
60°F
Wed, 11-4
63°F
48°F
48°F
Thu, 11-5
65°F
46°F
46°F
Fri, 11-6
61°F
45°F
45°F
Sat, 11-7
60°F
46°F
46°F
Sun, 11-8
59°F
47°F
47°F
Mon, 11-9
55°F
43°F
43°F
Tue, 11-10
57°F
44°F
44°F
Overcast
Saint Charles MO Weather Forecast for Sun 11-1
Overcast with a high of 66°F and a low of 59°F. There's a moderate 47% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 13mph on average and gusts of 15.2mph at 11 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 87% at 11 PM and 87% being its lowest at 11 PM. Barometric pressure is its highest of 30.17 at 11 PM, a lowest point of 30.17 at 11 PM with an avg 30.17.
- HI: 66°F
- LO: 59°F
- Rain: 47% | est. 0.02in
- Snow: 0%
- Wind
12.1 mph - Humidity
78% avg. - UV Index
2.5 - Air QualityGood
- Sunrise
06:29 AM - Sunset
05:02 PM - Moonrise
10:57 PM - Moonset
12:53 PM - Moon Phase
Last Quarter - Hourly
Overcast
Saint Charles MO Weather Forecast for Mon 11-2
Overcast with a high of 71°F and a low of 59°F. There's a moderate 28% chance of rainfall. Wind will be moderate, blowing around 17mph on average and gusts of 33.4mph at 8 PM. High humidity with average of 82% is anticipated, the maximum being 90% at 3 AM and 71% being its lowest at 10 PM. Barometric pressure is its highest of 30.15 at 12 AM, a lowest point of 29.88 at 10 PM with an avg 30.01.
- HI: 71°F
- LO: 59°F
- Rain: 28%
- Snow: 0%
- Wind
16.1 mph - Humidity
82% avg. - UV Index
1.6 - Air QualityGood
- Sunrise
06:30 AM - Sunset
05:00 PM - Moonrise
Does not rise today - Moonset
01:28 PM - Moon Phase
Last Quarter - Hourly
Moderate Rain
Saint Charles MO Weather Forecast for Tue 11-3
Moderate Rain with a high of 70°F and a low of 60°F. It will likey rain, having a 90% chance of a downpour with an estimated 1.8in. Winds will be strong at speeds peaking at 22mph and gusts of 43.9mph at 8 AM. High humidity with average of 86% is anticipated, the maximum being 97% at 2 PM and 78% being its lowest at 3 AM. Barometric pressure is its highest of 29.89 at 12 AM, a lowest point of 29.67 at 8 PM with an avg 29.77.
- HI: 70°F
- LO: 60°F
- Rain: 90% | est. 1.8in
- Snow: 0%
- Wind
21.3 mph - Humidity
86% avg. - UV Index
0.7 - Air QualityGood
- Sunrise
06:31 AM - Sunset
04:59 PM - Moonrise
12:10 AM - Moonset
01:57 PM - Moon Phase
Waning Crescent - Hourly
Sunny
Saint Charles MO Weather Forecast for Wed 11-4
Sunny with a high of 63°F and a low of 48°F. There might be light rainfall having a 18% chance with an estimated 0.01in. Wind will be moderate, blowing around 13mph on average and gusts of 23.5mph at 3 PM. The humidity will be on the higher side, averaging about 70%, the maximum being 93% at 12 AM and 38% being its lowest at 2 PM. Barometric pressure is its highest of 29.85 at 10 PM, a lowest point of 29.7 at 1 AM with an avg 29.78.
- HI: 63°F
- LO: 48°F
- Rain: 18% | est. 0.01in
- Snow: 0%
- Wind
12.3 mph - Humidity
70% avg. - UV Index
3.1 - Air QualityGood
- Sunrise
06:32 AM - Sunset
04:58 PM - Moonrise
01:23 AM - Moonset
02:24 PM - Moon Phase
Waning Crescent - Hourly
Sunny
Saint Charles MO Weather Forecast for Thu 11-5
Sunny with a high of 65°F and a low of 46°F. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 13mph on average and gusts of 20.2mph at 3 AM. The humidity will be on the higher side, averaging about 66%, the maximum being 84% at 11 PM and 45% being its lowest at 1 PM. Barometric pressure is its highest of 29.96 at 9 PM, a lowest point of 29.83 at 12 AM with an avg 29.89.
- HI: 65°F
- LO: 46°F
- Rain: 6%
- Snow: 0%
- Wind
12.1 mph - Humidity
66% avg. - UV Index
3.1 - Air QualityGood
- Sunrise
06:33 AM - Sunset
04:57 PM - Moonrise
02:34 AM - Moonset
02:49 PM - Moon Phase
Waning Crescent - Hourly
Sunny
Saint Charles MO Weather Forecast for Fri 11-6
Sunny with a high of 61°F and a low of 45°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 8mph and gusts of 18.3mph at 12 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 94% at 7 AM and 50% being its lowest at 3 PM. Barometric pressure is its highest of 30.06 at 9 AM, a lowest point of 29.98 at 1 AM with an avg 30.02.
- HI: 61°F
- LO: 45°F
- Rain: 9%
- Snow: 0%
- Wind
7.2 mph - Humidity
75% avg. - UV Index
5 - Air QualityGood
- Sunrise
06:34 AM - Sunset
04:56 PM - Moonrise
03:44 AM - Moonset
03:15 PM - Moon Phase
Waning Crescent - Hourly
Partly Cloudy
Saint Charles MO Weather Forecast for Sat 11-7
Partly Cloudy with a high of 60°F and a low of 46°F. There might be light rainfall having a 13% chance. Winds will be light at 6mph and gusts of 11.4mph at 11 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 90% at 6 AM and 56% being its lowest at 12 PM. Barometric pressure is its highest of 30.06 at 7 AM, a lowest point of 30.02 at 3 PM with an avg 30.04.
- HI: 60°F
- LO: 46°F
- Rain: 13%
- Snow: 0%
- Wind
5.6 mph - Humidity
75% avg. - UV Index
5 - Air QualityTBA
- Sunrise
06:35 AM - Sunset
04:55 PM - Moonrise
04:55 AM - Moonset
03:43 PM - Moon Phase
New Moon - Hourly
Partly Cloudy
Saint Charles MO Weather Forecast for Sun 11-8
Partly Cloudy with a high of 59°F and a low of 47°F. There's a very small chance of rainfall, only about 10%. Winds will be light at 6mph and gusts of 19.3mph at 3 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 85% at 6 AM and 44% being its lowest at 1 PM. Barometric pressure is its highest of 30.06 at 5 AM, a lowest point of 30.01 at 3 PM with an avg 30.04.
- HI: 59°F
- LO: 47°F
- Rain: 10%
- Snow: 0%
- Wind
5.4 mph - Humidity
65% avg. - UV Index
4 - Air QualityTBA
- Sunrise
06:36 AM - Sunset
04:54 PM - Moonrise
06:06 AM - Moonset
04:15 PM - Moon Phase
New Moon - Hourly
Isolated Showers
Saint Charles MO Weather Forecast for Mon 11-9
Isolated Showers with a high of 55°F and a low of 43°F. There might be light rainfall having a 19% chance. Winds will be light at 7mph and gusts of 14.9mph at 3 PM. The humidity will be on the higher side, averaging about 73%, the maximum being 91% at 6 AM and 56% being its lowest at 3 PM. Barometric pressure is its highest of 30.11 at 11 PM, a lowest point of 30.03 at 12 AM with an avg 30.07.
- HI: 55°F
- LO: 43°F
- Rain: 19%
- Snow: 0%
- Wind
6.7 mph - Humidity
73% avg. - UV Index
4 - Air QualityTBA
- Sunrise
06:38 AM - Sunset
04:53 PM - Moonrise
07:17 AM - Moonset
04:52 PM - Moon Phase
New Moon - Hourly
Sunny
Saint Charles MO Weather Forecast for Tue 11-10
Sunny with a high of 57°F and a low of 44°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 10mph and gusts of 20.9mph at 3 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 84% at 1 AM and 49% being its lowest at 12 PM. Barometric pressure is its highest of 30.15 at 9 AM, a lowest point of 30.11 at 12 AM with an avg 30.13.
- HI: 57°F
- LO: 44°F
- Rain: 9%
- Snow: 0%
- Wind
9.8 mph - Humidity
68% avg. - UV Index
4 - Air QualityTBA
- Sunrise
06:39 AM - Sunset
04:52 PM - Moonrise
08:26 AM - Moonset
05:36 PM - Moon Phase
New Moon - Hourly
This 10-Day weather forecast is relevant for ZIP codes 63301, 63302, 63303, and 63304, accurately covering areas of Saint Charles, MO.
Currently
 |
59°F |
30.17 inHg.
Barometer 87%
Humidity SSE 12.2 mph Wind |
| Overcast | ||
National Outlook
Flash Floods in Great Basin and Four Corners; Heavy Rain in Florida - 11-01 to 11-03
Sun Nov 1st 2026, 8:41am PST
Read
Storm Brings Heavy Rain to Eastern U.S. 11-04 to 11-08
Extended Forecast
Sun Nov 1st 2026, 8:41am PST
Read
Sun Nov 1st 2026, 8:41am PST
Weather Forecast Nearby
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