Area Forecast Discussion
Issued by NWS Twin Cities, MN

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855
FXUS63 KMPX 212320
AFDMPX

Area Forecast Discussion
National Weather Service Twin Cities/Chanhassen MN
620 PM CDT Tue Jul 21 2026

.KEY MESSAGES...

- Cooler temperatures with more comfortable dew points will
  stick around through the end of the week.

- Heat and humidity returns to start the weekend along with an
  uptick in rain chances.

&&

.DISCUSSION...
Issued at 231 PM CDT Tue Jul 21 2026

It is a gorgeous day with temperatures feeling a full 15 to 20
degrees cooler than this time yesterday. Temperatures tomorrow will
top out in the upper 70s to near 80. If MSP doesn`t hit 80 tomorrow,
it will be the first day to have a sub 80 high since June 26th.
Northwest flow aloft will continue to advect dry air into the region
through early Thursday. Ridging will slowly start to move into the
Central Plains by the end of the week, allowing temperatures to
creep up into the mid 80s. Heat and humidity returns with a
vengeance come Saturday. Dew points will jump back into the
upper 60s to low 70s and highs in the 90s returning through
early next week. The aforementioned ridge will remain centered
far enough to the south that any waves along the periphery
could bring some rain chances. However, the majority of the
forecast period looks to remain dry. Enjoy the break from the
heat!

&&

.AVIATION /00Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 618 PM CDT Tue Jul 21 2026

Cu will linger through the first few hours of the period, with
both the cumulus and wind dissipating by 03-04z across most
sites. Winds will become light and variable overnight generally
4kts or lower, with FEW250 making way for SKC as conditions
continue to dry out. We may see some fair weather cu returning
after 18z through the end of the period, however there is little
in the way of lift to force clouds and will instead rely on
mixing to the top of the mixed layer.

KMSP...No additional concerns.

/OUTLOOK FOR KMSP

THU...VFR. Wind SW 5-10kts.
FRI...VFR. Wind S 10-15kts.
SAT...VFR. Wind SW 5-10kts.

&&

.MPX WATCHES/WARNINGS/ADVISORIES...
MN...None.
WI...None.

&&

$$

DISCUSSION...Dye
AVIATION...TDH