Toledo Weather

Lucas and Wood Counties

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fxus61 kcle 272257
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area forecast discussion
national weather service cleveland oh
657 pm edt sat jun 27 2026

.what has changed...
light showers have expanded north in an arc from lorain to
youngstown late this afternoon. these showers will tend to
dissipate through approximately 7 pm while additional scattered
showers are expected across central ohio.

&&

.key messages...
1) very hot and humid conditions are expected across the region
tuesday through friday. preparations should be made now to help
mitigate the effects of prolonged heat later this week.

2) chances of showers and thunderstorms return to the local area
friday and continue into the holiday weekend.

&&

.discussion...
key message 1...
a pattern change is in store to start the week as a warm front lifts
north on monday and the upper level ridge expands across the great
lakes region. an anomalously strong ridge is expected to develop
with 500mb heights of 594dm reaching detroit on tuesday and buffalo
on wednesday. some variability in timing shortwave energy trying to
suppress the ridge develops in the models by thursday, but overall
confidence is above normal in a stretch of high heat and humid
conditions in the tuesday to friday period. stay tuned for the
latest forecast information as a combination of heat advisories and
extreme heat warnings are likely. see the climate section below
for record highs next week.

the warming trend will get underway on monday as a warm front lifts
north. can`t rule out an isolated shower near or north of the toledo
with the front monday morning but confidence was not high enough to
include in the forecast yet. after that time, southerly flow returns
with warm advection pushing 925mb temperatures of up to 26c in
northwest ohio. with dewpoints reaching the low 70s on monday in
western ohio, heat index values may reach or exceed 100 degrees
along the i-75 corridor. eastern portions of the forecast area will
only experience slightly above normal temperatures on monday with
lower humidity. the heat really becomes established across most of
the area on tuesday as highs reach or exceed 90 with mid to upper
90s in nw ohio and extending east to cleveland. the heat will become
more oppressive as we experience consecutive days in the 90s through
at least thursday and overnight lows that remain warm, especially
closer to lake erie.

a strong capping inversion is expected to be in place with 700mb
temperatures of 10c or more through thursday. with generally weak
flow, lake breezes are likely to develop and keep temperatures a few
degrees cooler along the lakeshore east of cleveland. not out of the
question to see an isolated thunderstorm or two along the lake
breeze by thursday. chances of thunderstorms trend upwards by friday
as moisture increases into the region which could impact
temperatures.

key message 2...
confidence in pattern evolution towards the end of the week is
low but generally shows the upper level ridge starting to be
suppressed to the south. this will likely result in an increase
in moisture and scattered showers and thunderstorms heading
into the holiday weekend. timing and favored placement will need
to refined over the coming days.

&&

.aviation /18z saturday through thursday/...
an area of low ceilings remains persistent across portions of
the central highlands this evening with cloud heights generally
ranging from 1-3kft. these conditions are currently impacting
kmfd and kcak, but may improve to low end vfr at times over the
next couple hours. after sunset, models suggest that a low layer
of moisture will linger, but there is uncertainty if this will
present itself as low stratus or as fog. opted to maintain the
mention of ifr ceilings of 500-800 feet late tonight with
reduced visibilities to 2sm for most southern terminals. the
exception to this was kfdy which will likely remain mvfr. this
forecast is highly dependent on how much clearing the area sees.
for terminals along the lakeshore, expect vfr conditions to
prevail through this period.

winds will remain light and variable into tomorrow before a lake
breeze develops and terminals along the lakeshore see a nne wind
of 5-10 knots develop. after sunset on sunday, winds will once
again return to light and variable.

outlook...non-vfr possible sunday morning into early afternoon
in fog/mist and low ceilings.

&&

.marine...
weak low pressure moves to the south of lake erie today as high
pressure will build in across the region this evening from the
north. conditions across the lake will be rather quiet for the next
several days with winds out of the northeast at around 10 knots,
weakening to 5-10 knots tonight with the high building in. monday
evening, a warm front will move north across the region and winds
will shift to be out of the south-southwest and increase to around
10 knots. high pressure builds into the region next week with quiet
conditions expected at this time.

&&

.climate...
hotter and more humid weather is expected this monday through friday.
record warm high temperatures may be challenged. here are those records
for each of our climate stations:

date toledo mansfield cleveland akron youngstown erie
06-29 100(1952) 96(1934) 94(2012) 98(1952) 99(1933) 90(2021)
06-30 97(1953) 94(1970) 95(1941) 96(1913) 94(1942) 92(1930)
07-01 98(1931) 98(1931) 95(2002) 97(1931) 96(1931) 94(2018)
07-02 98(2011) 97(1931) 97(1954) 98(1931) 98(1931) 94(1963)
07-03 100(1911) 93(2020) 98(1949) 97(1911) 98(1898) 93(1934)

&&

.cle watches/warnings/advisories...
oh...none.
pa...none.
marine...none.

&&

$$

discussion...10
aviation...04
marine...23

Fulton and Henry Counties

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fxus63 kiwx 272250
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area forecast discussion
national weather service northern indiana
650 pm edt sat jun 27 2026

.key messages...

- isolated (15-20%) showers possible this evening mainly
along/south of route 24.

- dangerous heat and humidity is starting monday as heat
indices climb above 100 degrees each afternoon with little
cooling at night.

&&

.discussion...
issued at 126 pm edt sat jun 27 2026

areas of showers and storms continue to develop along a stationary
boundary near the ohio river. a few cams still try to develop widely
scattered showers across southern parts of the forecast area along
an elevated warm front draped in this same area. cu field has been
rather unimpressive so far, but a few hints of some more
agitated cu and weak returns may be staring to take shape. as a
result, will maintain a slgt chc through 00z before ending with
loss of heating.

upper level low pressure in the nw us will dig further and stall
out, with strong ridging aloft still on track to bring a blast of
hot and humid conditions. sunday will see more seasonable highs in
the 80s with the humidity increasing through the afternoon. heat
indices will start to climb, but remain well below headline
thresholds. an mcs is expected to develop in mn sunday and propagate
ese along the advancing warm front. some models try to bring some
remnants of this in sunday night, but doesn`t seem overly likely so
will remove any spurious pops late sun night related to this.

by monday, upper level ridging will begin to take hold with the warm
front well north of the region allowing for the first of what will
most likely be several days of dangerous heat indices. monday will
be more "marginal" with values either side of the 100 degree
threshold, but tue-thu seem rather straight forward with expected
values of 100 to 105 (higher?). although on any given day we will
remain at advisory vs warning levels, the longevity of the event and
lack of cooling at night brings greater risks to those sensitive to
the heat and humidity. coordination took place on hoisting a
excessive heat watch mon-thu, but several concerns existed mainly
with exactly how high dewpoints will get and to our west a potential
for convective complexes on the western fringes of the ridge. will
defer any headlines for now as a result and continue to push
messaging. on a side note, while not "criteria" for heat headlines,
the nws heatrisk guidance highlights the major category (mon and
tue) and extreme for wed and thu). for more details on what goes
into this guidance and a look at the latest guidance, go to
www.wpc.ncep.noaa.gov/heatrisk.

with regards to convective chances, as already mentioned in the past
an unstable atmosphere will be in place but lack of triggers and a
very capped mid level will likely prevent much activity into wed and
likely thu as well. nbm brings some low pops in as early as thu in
the far north and then moreso into the upcoming holiday weekend.
will deal with those details in the coming days.

&&

.aviation /00z tafs through 00z monday/...
issued at 650 pm edt sat jun 27 2026

stalled frontal boundary remains just south of the area and ene
flow here is maintaining just enough low level dry air to
support vfr conditions. this will likely continue through much
of the period. however, some mvfr visibilities and ceilings will
be possible at kfwa sunday morning as this front begins to
slowly lift north. confidence is not high so just maintained a
tempo 5sm br mention for now. some mvfr ceilings may be possible
later sunday morning as well, though. mvfr can`t be entirely
ruled out at ksbn but chances are lower.

&&

.iwx watches/warnings/advisories...
in...none.
oh...none.
mi...none.
marine...none.

&&

$$

discussion...fisher
aviation...agd

Monroe and Lenawee Counties

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fxus63 kdtx 272325
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area forecast discussion
national weather service detroit/pontiac mi
725 pm edt sat jun 27 2026

.key messages...

- hot and humid conditions arrive monday with highs in the low-mid
90s and heat indices nearing 100 degrees.

- hottest conditions expected tuesday through friday with potential
for highs to reach 100 degrees and heat indices in excess of 105
degrees. there will be little nighttime relief with lows in the mid
70s.

- low thunderstorm chances for most of the work week, then
increasing friday into the holiday weekend.

&&

.aviation...

region remains under the influence of northern great lakes high
pressure tonight maintaining light n-ne winds. lower level cloud
fades after sunset leaving only cirrus overnight. similar setup
again sunday with lighter easterly winds and vfr conditions with
diurnal cu redevelops.

d21/dtw convection... no thunderstorms forecast through sunday.

.dtw threshold probabilities...

* low for ceiling at or below 5000 ft late this evening and again
sunday morning.

&&

.prev discussion...
issued at 306 pm edt sat jun 27 2026

discussion...

quiet / quaint conditions are courtesy of high pressure, centered
east of lake superior. only notable feature is a field of shallow
diurnal cumulus perking across the thumb, which will mix out as the
afternoon progresses. the high will be slow to migrate through the
region, so another seasonable weather day is queued up for sunday.
as we exit into the workweek, there is an outside shot at some
decaying shower activity to tumble in from the northwest early
monday.

the well advertised longwave pattern transformation will commence
sunday and reach its zenith mid-late week. the aggressive ridge
amplification and subsequent deep subsidence response will warm the
entire column dramatically early next week. the centroid of
greatest response will be across the great lakes, ohio valley, and
upper mississippi valley regions. monday will be become appreciably
hotter with highs crawling above 90-f with increasing dewpoints
(climbing into the lower 70s-f). the next level of hot arrives
tuesday and will certainly maintain voracity through thursday. highs
will make a run at 100-f each day - with heat index values
approaching 110-f at peak heating each afternoon. lows will only
settle back into the low-mid 70s-f - maybe upper 70s-f in the urban
areas.

the post-amplification phase of the episode has a few exit paths.
ensemble envelope has broadened some in the end of the week time
window - with a tendency for greater spread. ensemble sensitivity
analysis strongly suggests the variance is a culmination of the
differences in decay rates associated with the wave train pv
induction. the net result is a broadening and flattening of the
ridge axis - opening the opportunity for shortwave preservation and
deep convective response along the periphery of the heat dome. the
best first opportunity for the central lakes region to get into
thunderstorm action is in the friday timeframe. if storms delay,
friday will be another very hot day. the overall pattern
configuration will remain supportive of above average conditions
through the upcoming holiday weekend.

marine...

high pressure will hold over the region through the weekend
resulting in light northeasterly winds under 10 knots through
sunday. a warm front will lift north through the region on monday
opening the door for very warm air to move into the region for next
week. there will also be a chance of showers and thunderstorms for
northern lake huron monday as the front lifts north. winds will turn
southeasterly on monday with gusts increasing to around 20 knots.

&&

.dtx watches/warnings/advisories...
mi...none.
lake huron...none.
lake st clair...none.
michigan waters of lake erie...none.
&&

$$

aviation.....kdk
discussion...mann
marine.......drk


you can obtain your latest national weather service forecasts online
at www.weather.gov/detroit.