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Rockville, Maryland, 160,223 students in 211 schools

Montgomery County Public Schools Snow Day Predictor

The odds of a closing or a delay on the next three school mornings in Montgomery, measured against Montgomery's own big snow morning of 4.1 inches.

The next three school mornings

Will Montgomery close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in Rockville.
The Montgomery playbook

How Montgomery calls a snow day

When the call comes

Evening decision by 7 pm; morning decision by 5 am.

“Morning Decision - made and announced by 5 am (Unless there is an emergency that necessitates a later notification time.)”
Source

How families hear

By the district website, text message, email, social media and phone call.

“How can I get MCPS Emergency Information and any changes to the Operating Status Color Codes? MCPS Web: Home Page Sign up for Alert MCPS Social Media ( X , Facebook , Instagram ) Ask MCPS (240)740-3000 Your MCPS School Home Page”
MCPS Operating Status & Color Codes

A 2 hour delay

On a delay morning every school starts 2 hours late.

“Schools and offices will open two hours late. Emergency personnel report as directed. Morning bus routes will operate on a two-hour delay.”
Delay schedule

Making up a lost day

If schools close three or more days, make-up days on April 22, May 17 and June 14 to 17.

Make up dates: Apr 22, May 17, Jun 14, Jun 15, Jun 16, Jun 17.

“If the school year is disrupted by emergencies and schools are closed three or more days, dates identified as possible make-up instructional days include: April 22, May 17, June 14, 15, 16 and 17.”
Source

The 2026 to 2027 calendar

  • First day August 25, 2026
  • Winter break Dec 24 to Jan 1
  • Last day June 11, 2027
District calendar

Read from Montgomery’s own pages on October 8, 2026; the district site is montgomeryschoolsmd.org.

Ten winters of school mornings

Montgomery’s snow record

7.4inches of snow a winter
1.1school mornings a winter with 2 in of new snow or more
0.4with 4 in or more
4.1 ina big snow morning in Montgomery: the top tenth of snowy school mornings
0Nov
0.7Dec
4.1Jan
1.8Feb
0.9Mar
Average snowfall by month, inches
  • Biggest day 5.2 in on February 12, 2025
  • Snowiest winter 2024 to 2025, 14.3 in
  • 6 in mornings 0 a winter
  • 1 in mornings 1.7 a winter

Measured at a NOAA weather station 5.9 miles away. Mornings are the 7 am snow reading on a weekday from December 1 through March 31, over the ten winters from 2016 to 2017 through 2025 to 2026, from NOAA GHCN Daily.

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The Maryland rule

How Maryland counts a lost day

Maryland requires at least 180 school days and 1,080 hours within 10 months, with days of at least 3 hours. On a county board's application showing it tried to comply, the State Board may shorten the year when severe weather or a disaster prevented normal attendance, without cutting state or local funding.

The Maryland rules in the agency’s own words, and every Maryland district

Next door

Districts near Montgomery

DistrictSnow a winter4 in morningsBuilt in days
Howard County Public SchoolsEllicott City11.4 in0.86
Frederick County Public SchoolsFrederick17.7 in0.56
Prince George's County Public SchoolsUpper Marlboro7.1 in0.33
Baltimore City Public SchoolsBaltimore4.4 in0.13
Anne Arundel County Public SchoolsAnnapolis10.6 in0.53
Carroll County Public SchoolsWestminster16 in0.74
The schools

211 schools, the 40 largest here

Every school in Montgomery follows the district’s call: one closing covers them all.

High

  • Montgomery Blair High, Silver Spring
  • Walter Johnson High, Bethesda
  • Wheaton High, Silver Spring
  • Gaithersburg High, Gaithersburg
  • Northwest High, Germantown
  • Richard Montgomery High
  • Seneca Valley High, Germantown
  • Bethesda-Chevy Chase High, Bethesda
  • Clarksburg High, Clarksburg
  • Winston Churchill High, Potomac
  • Quince Orchard High, Gaithersburg
  • Paint Branch High, Burtonsville
  • Walt Whitman High, Bethesda
  • Albert Einstein High, Kensington
  • Thomas S. Wootton High
  • Springbrook High, Silver Spring
  • John F. Kennedy High, Silver Spring
  • James Hubert Blake High, Silver Spring
  • Northwood High, Silver Spring
  • Sherwood High, Sandy Spring
  • Watkins Mill High, Gaithersburg
  • Col. Zadok Magruder High
  • Rockville High
  • Damascus High, Damascus
  • Poolesville High, Poolesville

Middle

  • Julius West Middle
  • Thomas W. Pyle Middle, Bethesda
  • North Bethesda Middle, Bethesda
  • Takoma Park Middle, Silver Spring
  • Parkland Middle
  • Tilden Middle
  • Silver Spring International Middle, Silver Spring
  • Rocky Hill Middle, Clarksburg
  • Earle B. Wood Middle
  • Lakelands Park Middle, Gaithersburg
  • Francis Scott Key Middle, Silver Spring
  • A. Mario Loiederman Middle, Silver Spring
  • Cabin John Middle, Potomac
  • Robert Frost Middle School
  • Hallie Wells Middle, Clarksburg
Questions

Montgomery snow day questions

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More winter

More for Maryland snow days

Snow day predictorClosing and delay odds for any ZIP, with the snowiest districts in the country.Snow depth mapHow much snow is on the ground right now, measured, across the country.First snow datesWhen the first measurable snow usually lands where you live.Frozen pipesThe nights cold enough to freeze a pipe, and what to do before one.Snow plow trackerWhere the plows are during a storm, city by city.Maryland winter forecastThe season ahead for Maryland: snowfall, cold and the first snow.
A residential street under deep snow on a bright blue morning, cars parked along the curb buried into smooth white mounds, one set of tire tracks down the middle
The morning after a big one: cars buried to the mirrors and one set of tracks down the middle. A street like this is a closing, no debate. Photo, Fairfax, Virginia, January 2016: Jarek Tuszyński, CC BY 4.0

The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.