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Owosso, MI Weather Forecast

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Sunny

65°F

Updated	11:11 am
Feels Like	59°F
Humidity	73%
Wind	NE 8 mph
Barometer	30.33 in
Dew Point	56°F

Sunny

18°C

Updated	11:11 am
Feels Like	15°C
Humidity	73%
Wind	NE 13 km/h
Barometer	102.7 kPa
Dew Point	13°C

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Cloud Cover	58%
uv UV Index	6
Sunrise	7:20 AM
Sunset	7:41 PM
Moonrise	3:25 PM
Moonset	11:42 PM

Civil Twilight
6:48 AM to 7:17 AM
7:41 PM to 8:10 PM
Owosso MI Weather - Waxing Gibbous Moon

Waxing Gibbous Moon

Owosso Weather Forecast

TODAY	TONIGHT	SATURDAY	SATURDAY NIGHT	SUNDAY	SUNDAY NIGHT	MONDAY	MONDAY NIGHT	TUESDAY	TUESDAY NIGHT	WEDNESDAY	WEDNESDAY NIGHT

Partly Cloudy	Chance of Showers	Showers	Chance of Showers	Chance of Showers	Partly Cloudy	Cloudy	Cloudy	Chance of Showers	Chance of Showers	Chance of Showers	Mostly Cloudy
Hi: 71°FHi: 22°C	Lo: 51°FLo: 11°C	Hi: 65°FHi: 18°C	Lo: 51°FLo: 11°C	Hi: 65°FHi: 18°C	Lo: 49°FLo: 9°C	Hi: 61°FHi: 16°C	Lo: 45°FLo: 7°C	Hi: 61°FHi: 16°C	Lo: 49°FLo: 9°C	Hi: 65°FHi: 18°C	Lo: 49°FLo: 9°C
	POP: 30%	POP: 70%	POP: 60%	POP: 50%				POP: 30%	POP: 40%	POP: 30%

POP = Probability of Precipitation.

Weather Outlook Updated: 352 AM EDT Fri Sep 18 2026 Owosso, MI Weather - WeatherWorld.com

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Issued: 606 AM EDT Fri Sep 18 2026

Key Messages

Dry weather today with increasing clouds late in the day.
Several rounds of showers and embedded thunderstorms are likely Saturday, Saturday night, and Sunday.
A cool and cloudy pattern is expected through early next week.

Aviation

...

High pressure anchored over the northern great lakes will maintain dry and stable conditions locally today. This ensures widespread VFR conditions with limited diurnal cu development, with prevailing northeast wind holding at around 10 knots. High cloud t...

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Weather 101: Term of the Day

Serial Derecho

Type of derecho that consists of an extensive squall line which is oriented such that the angle between the mean wind direction and the squall line axis is small. A series of LEWPs and bow echoes move along the line. The downburst activity is associated with the LEWPs and bows. A Serial Derecho tends to be more frequent toward the north end of the line during the late winter and spring months. It occurs less frequently than its cousin the "progressive derecho." It is associated with a linear type mesoscale convective system that moves along and in advance of a cold front or dry line. These boundaries are often associated with a strong, migratory surface low pressure system and strong short wave trough at 500 mb (strong dynamic forcing). Lifted Indices are typically -6 or lower and the advection of dry air in the mid-troposphere (3-7 km above ground) by relatively strong winds leads to high convective instability and increased downdraft potential. The bow echoes move along the line in the direction of the mean flow, often southwest to northeast. These storms move at speeds exceeding 35 knots. Squall line movement is often less than 30 knots.