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Last Cool Day for Awhile

Yesterday was a dry day with a high of 67° and a morning low of 47° with mainly overcast skies.  We will start the day with some patchy fog and morning sunshine which will give way to increasing cloudiness, with the chance for a few isolated showers late tonight into tomorrow morning. Rainfall amounts should be a quarter inch or less.  Tomorrow looks to be the beginning of our warmup with temperatures in the upper 70s to around 80 through the rest of the week.

Grand Rapids Forecast

9 19 grr

U.S.A and Global Events for September 19th:

1947: A hurricane made landfall near the Chandeleur Islands, LA on this day.  Wind gusts of 112 mph and a central pressure of 967 mb were measured at Moisant International Airport. A storm surge of 9.8 feet reached Shell Beach, Lake Borgne. Moisant Airport field was flooded by two ft. of water while Jefferson Parish was flooded to depths of 3.28 ft. New Orleans suffered $100 million in damages. The total loss of life was 51 people. As a result of this storm, hurricane protection levees were built along the south shore of Lake Pontchartrain to protect Orleans and Jefferson Parishes from future storm surges.

Forecast Discussion

IR sat trends early this morning suggest skies will remain mostly
clear early today with patchy early morning fog which will
gradually dissipate during the mid morning hours. Skies will
become partly cloudy later today with potential for an isolated
shower or two mainly over our west to sw fcst area.

Weak elevated instability will develop tonight as h8 li/s go
slightly negative along with elevated cape values < 500 j/kg over
our western fcst area. This in conjunction with forcing from a
relatively weak llj will bring scattered showers and potentially
an isolated storm overnight. There is no threat for severe wx.

Weak instability lingers Wednesday so we continue to expect some
scattered showers and perhaps an isolated storm. Persistent
southerly flow waa will result in a milder day tomorrow with high
temperatures reaching well into the 70s.

Once the warm front lifts through on Wednesday night, the
shower/tstm risk should diminish/end and the primary news will be
the warmer conditions which take hold for the end of the week. Highs
around 80 expected for Thursday through Saturday.

While height rises are shown for Thursday and Friday, we will have
to keep an eye on a slow moving shortwave which lifts north from MO
then through WI. Guidance is generating some convection with this
feature although currently the bulk of that looks to remain just west
of here.

Rain chances begin to creep up early next week as an upper level
trough approaches from the west, but confidence remains low on the
timing of this feature and daily extent of convective coverage.

Temps cooling off a bit for Sunday and beyond due to increasing
cloud coverage ahead of apchg trough, as well as more of an easterly
component to sfc winds related to a sfc high over srn Quebec.
However temps will continue to average above normal early next
week with highs still in the 70s.
newest oldest
Rocky (Rockford)
Rocky (Rockford)

Yet another below normal temp day! This has been about 2 weeks straight! What an incredible stretch of cool weather!!!! The below normal temp pattern is awesome!

Kyle (Portland, Ionia County)
Kyle (Portland, Ionia County)

Anyone see the Northern lights last night? It was breathtaking. Got some great photos. Peak aurora seemed to be 11:10-11:15pm

Nathan (Forest Hills)
Nathan (Forest Hills)

The nice thing about this time of year is “cool” is still conformable. I’ll happily take 60s and 70s any day of the year

Mark (East Lansing)
Mark (East Lansing)

It is quite foggy here this morning. I haven’t seen fog this thick in quite some time.


The official H/L yesterday at Grand Rapids was 67/49. There was no rain fall the sun was out just 27% of the possible time. The highest wind speed was 17 MPH out of the N. For today the average H/L is 73/52 the record high of 91 was set in 1908 the record low of 36 was set in 1929, 1979 and 2020. The record rain fall amount of 1.73” fell in 1988. The sun is above the horizon for 12H and 19M about the same as March 24th Last year the H/L was 79/62 and there was a trace… Read more »