St. Charles, MI Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for St. Charles, MI.

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Current Conditions — Saint Charles, MI

SAGINAW (KMBS)

Clear

71.6 F
Humidity:53%
Wind Speed:E 6.9 mph
Barometer:29.92 in
Dewpoint:53.6 F
Visibility:10.00 mi
Precip:--
Heat Index:70.9 F
Wind Chill:NA
Apr 23 2026, 01:30 PM EDT
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5-Day Forecast — Saint Charles, MI

Thursday

High 77 °F
Partly Sunny
Thursday
Night
Low 55 °F
Partly Cloudy
Friday

High 73 °F
T-storms
Friday
Night
Low 48 °F
T-storms
Saturday

High 59 °F
Mostly Cloudy
Saturday
Night
Low 41 °F
Partly Cloudy
Sunday

High 64 °F
Mostly Cloudy
Sunday
Night
Low 44 °F
Mostly Cloudy
Monday

High 68 °F
Chance of Rain Showers

Detailed Forecast — Saint Charles, MI

Thursday
Partly Sunny. High near 77°F. Wind 6 to 8 mph, with gusts as high as 16 mph.
Thursday Night
Partly Cloudy. Low around 55°F. Wind 5 to 7 mph, with gusts as high as 14 mph.
Friday
Thunderstorms. High near 73°F. Wind 7 to 12 mph, with gusts as high as 20 mph.
Friday Night
Thunderstorms. Low around 48°F. Wind 7 to 9 mph, with gusts as high as 17 mph.
Saturday
Mostly Cloudy. High near 59°F. Wind 10 to 12 mph, with gusts as high as 21 mph.
Saturday Night
Partly Cloudy. Low around 41°F. Wind 5 to 9 mph, with gusts as high as 17 mph.
Sunday
Mostly Cloudy. High near 64°F. Wind 5 to 8 mph, with gusts as high as 16 mph.
Sunday Night
Mostly Cloudy. Low around 44°F. Wind 5 to 7 mph, with gusts as high as 15 mph.
Monday
Chance of Rain Showers. High near 68°F. Wind 8 to 16 mph, with gusts as high as 28 mph.
Monday Night
Chance of Thunderstorms. Low around 53°F. Wind around 17 mph, with gusts as high as 31 mph.
Tuesday
Rain Showers Likely. High near 62°F. Wind 16 to 20 mph, with gusts as high as 32 mph.
Tuesday Night
Chance of Showers. Low around 44°F. Wind 8 to 13 mph, with gusts as high as 25 mph.
Wednesday
Slight Chance of Rain Showers. High near 60°F. Wind 8 to 13 mph, with gusts as high as 23 mph.
MI Radar
Current Radar • MI
Day 1 Outlook • April 23, 2026

Observation History — Saint Charles, MI

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)
01:30 PM EDT E 6.9 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.92 1013.2
01:25 PM EDT 5.7 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.92 1013.2
01:20 PM EDT 5.7 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.92 1013.2
01:15 PM EDT E 5.7 10.00 Clear -- 71.6 53.6 53% NA 70.9 29.92 1013.2
01:05 PM EDT E 6.9 10.00 Clear -- 71.6 51.8 50% NA 70.9 29.93 1013.5
01:00 PM EDT 6.9 10.00 Clear -- 69.8 51.8 53% NA NA 29.93 1013.5
12:45 PM EDT E 5.7 10.00 Clear -- 69.8 50.0 49% NA NA 29.94 1013.9
12:35 PM EDT 4.6 10.00 Clear -- 68.0 50.0 53% NA NA 29.95 1014.2
12:30 PM EDT E 8.1 10.00 Clear -- 66.2 48.2 52% NA NA 29.95 1014.2
12:15 PM EDT E 8.1 10.00 Clear -- 66.2 48.2 52% NA NA 29.96 1014.6
12:10 PM EDT E 6.9 10.00 Clear -- 66.2 48.2 52% NA NA 29.95 1014.2
12:00 PM EDT E 6.9 10.00 Clear -- 66.2 46.4 49% NA NA 29.96 1014.6
11:50 AM EDT E 4.6 10.00 Clear -- 64.4 46.4 52% NA NA 29.96 1014.6
11:35 AM EDT E 5.7 10.00 Clear -- 64.4 46.4 52% NA NA 29.96 1014.6
11:30 AM EDT E 6.9 10.00 Clear -- 64.4 44.6 49% NA NA 29.96 1014.6
11:15 AM EDT SE 5.7 10.00 Clear -- 62.6 44.6 52% NA NA 29.97 1014.9
11:10 AM EDT SE 3.4 10.00 Clear -- 62.6 42.8 48% NA NA 29.97 1014.9
11:05 AM EDT 3.4 10.00 Clear -- 62.6 42.8 48% NA NA 29.97 1014.9
11:00 AM EDT SE 4.6 10.00 Clear -- 62.6 42.8 48% NA NA 29.97 1014.9
10:50 AM EDT SE 3.4 10.00 Clear -- 60.8 41.0 48% NA NA 29.97 1014.9
10:40 AM EDT SW 4.6 10.00 Clear -- 60.8 39.2 45% NA NA 29.98 1015.2
10:35 AM EDT 0.0 10.00 Clear -- 60.8 39.2 45% NA NA 29.98 1015.2
10:30 AM EDT 0.0 10.00 Clear -- 59.0 39.2 48% NA NA 29.98 1015.2
10:20 AM EDT 3.4 10.00 Clear -- 57.2 39.2 51% NA NA 29.98 1015.2

Regional Weather Observation

SAGINAW (KMBS)

Clear
71.6 F

MIDLAND BARSTOW (KIKW)

Clear
69.8 F

ALMA (KAMN)

Clear
75.2 F

MOUNT PLEASANT (KMOP)

Clear
73.8 F

OWOSSO (KRNP)

NULL
79.0 F

SAGINAW/BROWNE (KHYX)

Clear
77.0 F
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