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Roseville, Michigan 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Roseville MI
National Weather Service Forecast for: Roseville MI
Issued by: National Weather Service Detroit/Pontiac, MI
Updated: 5:13 am EDT Aug 15, 2025
 
This
Afternoon
This Afternoon: Sunny, with a high near 87. Southeast wind around 7 mph.
Sunny

Tonight

Tonight: Mostly clear, with a low around 69. South southeast wind 5 to 7 mph becoming calm  after midnight.
Mostly Clear

Saturday

Saturday: Sunny, with a high near 92. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunny

Saturday
Night
Saturday Night: A chance of showers and thunderstorms between 8pm and 5am, then a chance of showers after 5am.  Mostly cloudy, with a low around 71. West southwest wind around 6 mph becoming north northwest after midnight.  Chance of precipitation is 50%.
Chance
T-storms

Sunday

Sunday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 85. North wind 6 to 9 mph.  Chance of precipitation is 30%.
Chance
Showers then
Chance
T-storms
Sunday
Night
Sunday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Chance
T-storms then
Partly Cloudy
Monday

Monday: Partly sunny, with a high near 81.
Partly Sunny

Monday
Night
Monday Night: A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am.  Mostly cloudy, with a low around 66.
Chance
T-storms

Tuesday

Tuesday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 83.
Chance
Showers then
Chance
T-storms
Hi 87 °F Lo 69 °F Hi 92 °F Lo 71 °F Hi 85 °F Lo 64 °F Hi 81 °F Lo 66 °F Hi 83 °F

 

This Afternoon
 
Sunny, with a high near 87. Southeast wind around 7 mph.
Tonight
 
Mostly clear, with a low around 69. South southeast wind 5 to 7 mph becoming calm after midnight.
Saturday
 
Sunny, with a high near 92. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Saturday Night
 
A chance of showers and thunderstorms between 8pm and 5am, then a chance of showers after 5am. Mostly cloudy, with a low around 71. West southwest wind around 6 mph becoming north northwest after midnight. Chance of precipitation is 50%.
Sunday
 
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. North wind 6 to 9 mph. Chance of precipitation is 30%.
Sunday Night
 
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Monday
 
Partly sunny, with a high near 81.
Monday Night
 
A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 66.
Tuesday
 
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83.
Tuesday Night
 
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 66.
Wednesday
 
Mostly sunny, with a high near 82.
Wednesday Night
 
Partly cloudy, with a low around 63.
Thursday
 
Sunny, with a high near 83.

 

Forecast from NOAA-NWS for Roseville MI.

Weather Forecast Discussion
832
FXUS63 KDTX 151727
AFDDTX

Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
127 PM EDT Fri Aug 15 2025

.KEY MESSAGES...

- Warmer and dry today with highs in the upper 80s.

- Heat and humidity return this weekend as heat indices peak in the
upper 90s Saturday afternoon.

- Chance of thunderstorms Saturday through Sunday morning with an
isolated severe storm possible Saturday afternoon-evening.

- Cooler and less humid early next week.

&&

.AVIATION...

Strong H5-H3 geopotential height rises is forecasted today and
tonight as an extension to upper level ridging builds into
Southeast Michigan and the central Great Lakes. There is a very good
signal for warming aloft with active subsidence in the 5.0 to 13.0
kft agl layer. Models suggest convective remnants with associated
moisture will arrive over the area after 15Z Saturday. There may be
enough midlevel moisture and cooling to erode stability over the
region to result in some sporadic showers or thunderstorm activity.
Uncertainty is high and confidence is low, but did introduce a
Prob30 group for -TSRA at DTW.

For DTW/D21 Convection...Low chance for a thunderstorm between 19-
22Z Saturday.

 THRESHOLD PROBABILITIES...

* Low for ceiling at or below 5 kft during the afternoon.

&&

.PREV DISCUSSION...
Issued at 406 AM EDT Fri Aug 15 2025

DISCUSSION...

Patchy fog is observed this morning across the Saginaw Valley and
Thumb regions where easterly flow off of Lake Huron has locally
enhanced boundary layer moisture. Should have no problem mixing this
out once solar heating ramps up. Low amplitude shortwave is noted
over Wisconsin at issuance, and will slowly shift east throughout
the day bringing an increase in mid cloud across central Lower
Michigan throughout the day. Airmass modification and emerging
southerly flow push highs into the upper 80s today.

Low predictability heading into the Saturday forecast, with several
windows of opportunity for convection, but low confidence in each.
The first of these begins late tonight as a nocturnal MCS develops
along a cold front that is set to drop through the Great Lakes later
this weekend. Familiar setup exists where the MCS will ride the
instability gradient and either clip SE Michigan Saturday morning,
or generates subsidence and eats into the instability that we rely
on for later day convection. Should instability be able to rebound
sufficiently by the afternoon-evening timeframe, a couple of defined
perturbations aloft combine with differential heating at the surface
to support a second window of thunderstorm potential. SWODY2 keeps
the Marginal Risk west of our forecast area, but there are some
environmental signatures for strong downdraft potential. For
example, HRRR/RAP soundings show inverted-V soundings with sfc-3km
AGL lapse rates of 8.5-9.0 C/km while increasing mid-level winds
late in the day could support organized cells.

The other forecast point for Saturday is the return of warm and
muggy conditions. Forecast highs on Saturday around 90 degrees bring
heat indices into the mid-90s, although convective cloud debris
and/or disruption to moisture transport could suppress warming
significantly.

By Saturday evening, the cold front will begin settling across lower
Michigan. The deterministic runs are fairly lean on precipitation
coverage overnight-Sunday morning, but given the defined forcing and
plentiful moisture (PWATs near 1.8"), thoughts are much more in line
with the bulk of ensemble members from the EPS/GEFS/CMCE which keeps
shower/thunderstorm chances going through at least Sunday morning.
Models disagree on the pace of the front, with some stalling the
boundary overhead on Sunday to keep rain chances around for the
daytime hours as well. The forecast from Sunday through early next
week will be highly sensitive to the positioning of this frontal
boundary, and will likely see a gradient in both temperature and
precipitation chances across the CWA. Precipitation is likely to
flare up at times along the frontal zone, leading to unsettled
conditions and potential for heavy rainfall to start the work week.
The WPC Excessive Rainfall Outlook highlights all of SE Michigan in a
broad Marginal Risk for Monday-Tuesday. Otherwise, cooler conditions
are expected next week.

MARINE...

High pressure over Eastern Quebec this morning, leading to light
southerly flow (mostly under 20 knots) today. Continued low level
warming into Saturday ahead of a cold front should cap wind speeds
in the 15 to 20 knot range. Increasing chance of showers and
thunderstorms Saturday evening as cold front enters the region.
Scattered-numerous showers and thunderstorms should be around
Saturday night into Sunday as the front drives south. Solid cold
advection (850 MB temps lowering into lower teens/around 10 C) over
Lake Huron on Sunday will allow northeast winds to reach 20-25
knots, with the potential for winds to briefly gust to around 30
knots. Even if winds come up a bit short, the prolong northeast
winds will likely allow waves to build around 4 feet across the
nearshore waters, as easterly winds persist into early next week
with another strong high pressure system developing over Eastern
Canada.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...None.
Lake Huron...None.
Lake St Clair...None.
Michigan waters of Lake Erie...None.
&&

$$

AVIATION.....CB
DISCUSSION...MV
MARINE.......SF


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