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Brunswick, Ohio 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Brunswick OH
National Weather Service Forecast for: Brunswick OH
Issued by: National Weather Service Cleveland, OH
Updated: 5:58 pm EDT Aug 13, 2025
 
Tonight

Tonight: A slight chance of showers and thunderstorms before 7pm.  Patchy fog before 2am, then patchy fog after 3am.  Otherwise, partly cloudy, with a low around 64. Northwest wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Patchy Fog
Thursday

Thursday: Sunny, with a high near 82. North wind 3 to 8 mph.
Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 62. Northeast wind around 6 mph becoming calm  in the evening.
Mostly Clear

Friday

Friday: Sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 63. North wind around 6 mph becoming calm  in the evening.
Mostly Clear

Saturday

Saturday: Sunny, with a high near 88.
Sunny

Saturday
Night
Saturday Night: Mostly clear, with a low around 68.
Mostly Clear

Sunday

Sunday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 86. Chance of precipitation is 40%.
Chance
Showers then
Chance
T-storms
Sunday
Night
Sunday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Chance
T-storms then
Partly Cloudy
Lo 64 °F Hi 82 °F Lo 62 °F Hi 84 °F Lo 63 °F Hi 88 °F Lo 68 °F Hi 86 °F Lo 67 °F

Hazardous Weather Outlook
 

Tonight
 
A slight chance of showers and thunderstorms before 7pm. Patchy fog before 2am, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 64. Northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
 
Sunny, with a high near 82. North wind 3 to 8 mph.
Thursday Night
 
Mostly clear, with a low around 62. Northeast wind around 6 mph becoming calm in the evening.
Friday
 
Sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
 
Mostly clear, with a low around 63. North wind around 6 mph becoming calm in the evening.
Saturday
 
Sunny, with a high near 88.
Saturday Night
 
Mostly clear, with a low around 68.
Sunday
 
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Sunday Night
 
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Monday
 
Mostly sunny, with a high near 84.
Monday Night
 
Partly cloudy, with a low around 63.
Tuesday
 
A chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Tuesday Night
 
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
 
Mostly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Brunswick OH.

Weather Forecast Discussion
357
FXUS61 KCLE 131800
AFDCLE

Area Forecast Discussion
National Weather Service Cleveland OH
200 PM EDT Wed Aug 13 2025

.SYNOPSIS...
A cold front will drop across the region this evening followed
by Canadian high pressure building across the northern Great
Lakes Thursday and Friday. The front will settle over the Ohio
Valley Thursday and Friday before lifting back north as a warm
front early Saturday. Low pressure crossing the Great Lakes
Sunday will push a cold front southward toward Lake Erie, with
this front hanging in the vicinity early next week.

&&

.NEAR TERM /THROUGH THURSDAY NIGHT/...
The main forecast challenge this afternoon and evening will be
convective coverage ahead of the cold front. A large cold pool,
cloud cover, and associated CIN has covered the region through
early this afternoon in the wake of the first round of
convection that moved through in the pre-dawn hours of this
morning. This has been supressing much in the way of organized
redevelopment despite HREF CAMS wanting to develop quite a bit
of convection, thus lowering confidence. Recent radar loops show
scattered activity developing near the Central Highlands and in
interior NE Ohio on numerous outflow boundaries, so expect that
more convection will develop this afternoon, but coverage may
not be as high as previously expected. Tweaked POPS to reflect
slightly slower development this afternoon, with POPS gradually
expanding in coverage as the broken line moves southeast toward
the Pittsburgh area. Moderate instability eventually building
up by mid to late afternoon (1500-2000 joules of MLCAPE) and
steepening low-level lapse rates could support gusty winds
within the strongest cores, but warm mid-level temperatures and
weak flow aloft (almost no shear) will keep any severe threat
very isolated. The main concern will be locally heavy rainfall
as PWATs of 1.75 to 2.00 inches, deep warm cloud layers, and
slow cell movement will support efficient rainfall rates and
decent duration as the convection gradually spreads
southeastward. The most at-risk areas for localized flooding
will be where heavy rain fell early this morning.

Convection will exit the region early tonight as the cold front
crosses the region. A developing inversion, small temp/dew point
depressions, wet ground, and lengthening nights all support
fairly widespread fog development, especially in interior NE
Ohio and NW PA, so expanded fog coverage overnight into Thursday
morning. The main mid/upper trough axis will only glance the
region to the north late tonight and Thursday, but Canadian high
pressure at the surface building into the northern Great Lakes
will push the front into the Ohio Valley for Thursday and
Thursday night and allow for mostly clear skies and notably
lower humidity. Lows tonight will dip into the low/mid 60s, with
highs Thursday in the low/mid 80s. Lows Thursday night will fall
into the mid 50s/low 60s.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
The aforementioned Canadian high will gradually shift into the
eastern Great Lakes and New England Friday and Friday night,
with the old frontal boundary retreating northward as a warm
front Friday night into Saturday as the mid/upper ridge
redevelops and strengthens over the Mid Mississippi Valley. This
will keep conditions cooler and pleasant through Friday night,
but the higher heat and humidity will surge northeastward back
into the region by Saturday. We will need to watch for the
remnants of convective complexes (MCS activity) rotating around
the ridge in the Upper Midwest and possibly clipping the region
by Saturday, but with the high theta e/instability gradient
looking to stay to our west Saturday and typical uncertainity
with these patterns, kept the forecast dry through Saturday at
this time. The better chance for some convection may come late
Saturday night in northern areas as a frontal boundary
approaches from the central Great Lakes.

Highs in the low/mid 80s Friday will warm into the upper 80s/low
90s Saturday, with lows in the upper 50s to mid 60s Friday night
and mid 60s to low 70s Saturday night.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
The mid/upper ridge will continue to strengthen over the Mid
Mississippi Valley Sunday, with 500 mb heights reaching 594-596
DM over MO and IL, before starting to retrograde westward
by Monday as a strong shortwave trough crosses the Great Lakes
Sunday and Sunday night. This shortwave will push a cold front
into the southern Great Lakes region Sunday and Monday, but
there is uncertainty with how quickly it will push south due to
the strong mid/upper ridge to the SW. The overall pattern favors
increased chances for convection Sunday into Monday, with the
front likely to become quasi-stationary for a time. By Tuesday
and Wednesday, deepening mid/upper troughing over the eastern
CONUS and strong Canadian High Pressure will lead to much
cooler, drier, and less humid conditions as the front is forced
southward. NBM POPS and temperatures looked reasonable through
the extended.


&&

.AVIATION /18Z Wednesday THROUGH Sunday/...
A cold front, currently located just west of the I-71 corridoor,
will be sweeping across the region this afternoon into the evening
bringing another chance for precipitation, mainly for the terminals
from KCLE eastward. Precipitation chances will be less widespread
than last night and should move out of the region by 00Z. For
terminals around the front and behind it as it passes through,
expect to see MVFR ceilings and isolated areas of precipitation
lowering visibility. With the precipitation, there will be the
chance for VCTS near the terminals, so opted to run a PROB30 group
for KCLE and KMFD and will continue a TEMPO group for KCAK, KERI,
and KYNG. Thunderstorm potential is low for KTOL and KFDY as the
front will be already to the east of those terminals by the time
storms start firing off.

After the front moves tonight, should expected ceilings to rise and
then clear out overnight. There is the potential for some lower
visibility due to BR across the inland terminals, mainly from KYNG
through west through KMFD, with KYNG having the highest probability.
Have included a prevailing MVFR visibility line for KYNG for this
from 08-14Z with a TEMPO line for KMFD and KCAK. There is the
potential that KYNG, and to a lesser extent KMFD and KCAK, see IFR
visibility for a period of time tomorrow morning as well. VFR
conditions will return for the remainder of the TAF period for all
terminals.

Winds will be light at less than 10 knots from the west-southwest
throughout the day today before veering out of the northwest behind
the cold front this afternoon/evening. Winds will continue to veer
as high pressure builds in from the north and will be out of the
northeast by late tonight into tomorrow morning.

Outlook...VFR conditions are expected through Sunday morning before
non-VFR conditions are possible Sunday afternoon.

&&

.MARINE...
A cold front will continue to cross Lake Erie this afternoon through
the evening. Winds will be light at 5 to 10 knots through the
frontal passage, outside of even showers and thunderstorms. Winds
are generally out of the west-southwest across the lake and will be
veering to the northwest and then out of the north after midnight.
Throughout the day on Friday, winds should be around 10 knots out of
the north-northeast for an on-shore flow before weakening in the
evening as high pressure builds in to the north. There is the
potential for waterspouts this evening and into tomorrow morning,
then conditions become more unfavorable. Flow will shift to be more
southerly towards the end of the week as a warm front will move
northward across the lake. A cold front will move through the region
on Sunday and northwesterly winds will return behind it.

&&

.CLE WATCHES/WARNINGS/ADVISORIES...
OH...None.
PA...None.
MARINE...None.

&&

$$

SYNOPSIS...Garuckas
NEAR TERM...Garuckas
SHORT TERM...Garuckas
LONG TERM...Garuckas
AVIATION...23
MARINE...23
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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