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Day 1 Outlook • April 17, 2026
Day 2 Outlook • April 18, 2026
Day 3 Outlook • April 19, 2026
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dBZ 5
75

Hazardous Weather Conditions

  • No active alerts for SAINT LOUIS, MISSOURI

Current Conditions: SAINT LOUIS, MISSOURI

ST CHARLES (KSET)

Mostly Clear

75.2 F
Humidity:69%
Wind Speed:S 13.8 mph
Barometer:29.88 in
Dewpoint:64.4 F
Visibility:10.00 mi
Precip:--
Heat Index:75.7 F
Wind Chill:NA
Apr 17 2026, 10:25 AM CDT
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5 Day Forecast for SAINT LOUIS, MISSOURI (63111)

Friday

High 86 °F
Isolated T-storm
Friday
Night
Low 50 °F
T-storms
Saturday

High 62 °F
Chance of Rain Showers
Saturday
Night
Low 41 °F
Mostly Clear
Sunday

High 68 °F
Mostly Sunny
Sunday
Night
Low 44 °F
Mostly Clear
Monday

High 75 °F
Sunny
Monday
Night
Low 53 °F
Mostly Clear
Tuesday

High 80 °F
Partly Sunny

Detailed Forecast for SAINT LOUIS, MISSOURI (63111)

Friday
Isolated T-storm. High near 86°F. Wind 5 to 14 mph, with gusts as high as 23 mph.
Friday Night
Thunderstorms. Low around 50°F. Wind 9 to 12 mph, with gusts as high as 21 mph.
Saturday
Chance of Rain Showers. High near 62°F. Wind 10 to 14 mph, with gusts as high as 24 mph.
Saturday Night
Mostly Clear. Low around 41°F. Wind 5 to 7 mph, with gusts as high as 15 mph.
Sunday
Mostly Sunny. High near 68°F. Wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Mostly Clear. Low around 44°F. Wind around 2 mph, with gusts as high as 7 mph.
Monday
Sunny. High near 75°F. Wind around 7 mph, with gusts as high as 14 mph.
Monday Night
Mostly Clear. Low around 53°F. Wind around 7 mph, with gusts as high as 15 mph.
Tuesday
Partly Sunny. High near 80°F. Wind 8 to 12 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly Clear. Low around 57°F. Wind around 6 mph, with gusts as high as 13 mph.
Wednesday
Partly Sunny. High near 80°F. Wind 6 to 8 mph, with gusts as high as 15 mph.
Wednesday Night
Partly Cloudy. Low around 59°F. Wind around 5 mph, with gusts as high as 10 mph.
Thursday
Chance of Scattered Thunderstorms. High near 80°F. Wind 8 to 9 mph, with gusts as high as 18 mph.
MO Radar
Current Radar • MO
Day 1 Outlook • April 17, 2026

Observation History for SAINT LOUIS, MISSOURI

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
10:25 AM CDT S 13.8 10.00 Mostly Clear -- 75.2 64.4 69% NA 75.7 29.88 1011.9
10:10 AM CDT S 12.7 10.00 Mostly Clear -- 75.2 64.4 69% NA 75.7 29.88 1011.9
10:00 AM CDT S 15.0 10.00 Clear -- 73.4 62.6 69% NA 73.8 29.89 1012.2
09:45 AM CDT S 6.9 10.00 Clear -- 73.4 62.6 69% NA 73.8 29.89 1012.2
09:25 AM CDT S 6.9 10.00 Clear -- 71.6 62.6 73% NA 72.0 29.89 1012.2
09:15 AM CDT S 6.9 10.00 Clear -- 69.8 62.6 78% NA NA 29.89 1012.2
09:05 AM CDT 6.9 10.00 Clear -- 69.8 62.6 78% NA NA 29.89 1012.2
08:50 AM CDT 6.9 10.00 Clear -- 69.8 60.8 73% NA NA 29.90 1012.5
08:35 AM CDT 6.9 10.00 Clear -- 68.0 60.8 78% NA NA 29.90 1012.5
08:20 AM CDT SE 5.7 10.00 Mostly Clear -- 66.2 62.6 88% NA NA 29.90 1012.5
08:05 AM CDT E 6.9 10.00 Partly Cloudy -- 64.4 60.8 88% NA NA 29.90 1012.5
07:40 AM CDT E 6.9 10.00 Mostly Clear -- 64.4 60.8 88% NA NA 29.90 1012.5
07:30 AM CDT E 6.9 10.00 Mostly Clear -- 62.6 60.8 94% NA NA 29.90 1012.5
07:15 AM CDT E 6.9 9.00 Mostly Clear -- 62.6 60.8 94% NA NA 29.90 1012.5
07:00 AM CDT E 5.7 9.00 Mostly Clear -- 62.6 60.8 94% NA NA 29.89 1012.2
06:40 AM CDT E 5.7 7.00 Partly Cloudy -- 62.6 60.8 94% NA NA 29.89 1012.2
06:35 AM CDT E 5.7 7.00 Partly Cloudy -- 62.6 60.8 94% NA NA 29.89 1012.2
06:20 AM CDT 5.7 10.00 Clear -- 62.6 60.8 94% NA NA 29.89 1012.2
06:10 AM CDT 4.6 10.00 Clear -- 62.6 60.8 94% NA NA 29.89 1012.2
06:05 AM CDT 4.6 10.00 Mostly Clear -- 62.6 60.8 94% NA NA 29.89 1012.2
05:45 AM CDT 3.4 8.00 Partly Cloudy -- 62.6 60.8 94% NA NA 29.89 1012.2
05:25 AM CDT E 3.4 6.00 Fog/Mist -- 62.6 60.8 94% NA NA 29.89 1012.2
05:20 AM CDT 4.6 6.00 Fog/Mist -- 62.6 60.8 94% NA NA 29.89 1012.2
05:10 AM CDT E 3.4 6.00 Fog/Mist -- 62.6 60.8 94% NA NA 29.89 1012.2

Regional Weather Observation

ST CHARLES (KSET)

Mostly Clear
75.2 F

ST LOUIS (KSTL)

Mostly Clear
75.2 F

ALTON/ST LOUIS R (KALN)

Clear
71.6 F

ST LOUIS/SPIRIT (KSUS)

Clear
77.0 F

CAHOKIA/ST LOUIS (KCPS)

Mostly Clear
75.2 F

WASHINGTON (KFYG)

Haze
NULL F
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