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Montgomery County, MD

An ordinary day in Montgomery County, MD: was cooler than 50 of 75 earlier years in the county average (county average from NOAA gridded data, 1951 to 2026).

Last updated . This page normally updates every day; the latest update is late.

High
69.3°F
Coldest since 2023
26th coldest of 76
Low
58.9°F
Warmest since 2025
19th warmest of 76

No measurable precipitation in the county average of Montgomery County, MD for 1 day to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).

Every 29 September high of the county average in Montgomery County, MD since 1951: 69.3°F in 2026; the highest is 87.5°F, in 1954.
2023: 68°F1954: 87.5°F2026: 69.3°F 2026 69.3°F 1954 87.5°F since 2023 1951 2026
  • Normal range, 67.4 to 79.6°F
Every year as a table

Every 29 September low of the county average in Montgomery County, MD since 1951: 58.9°F in 2026; the lowest is 37.1°F, in 1951.

YearHigh, °FLow, °F
202669.358.9
202581.760.7
202480.965.9
20236851.2
202266.647.4
202177.955.5
20208064.5
201985.263.8
201873.555.2
201776.850.1
20166961
201579.264.2
201478.554.1
201368.847.9
20127653.1
201178.963.2
201079.653.9
200975.649.5
200875.761.1
200777.753.9
200674.650.3
200577.648.7
200471.462.4
200371.649.2
200275.151.7
200161.346.2
200070.542.8
199971.964.7
199882.551.2
19976758.2
199673.551.5
199575.850.8
199470.250.8
199367.445.5
199265.451.6
19916942.2
199076.954.3
19896742.9
198879.652.8
198782.354.8
198670.362.7
198570.145.1
198448.742.7
198373.247.6
19827051.4
198167.639.8
198074.145.7
197969.260.5
197871.137.7
197771.646.4
197667.147.6
19757045.2
197473.962.4
197379.162.6
197268.359.7
197175.457.5
19706542.2
196969.143.9
196875.448.2
196773.561.8
196657.552.6
196568.745.1
196454.948.1
196379.255.9
196265.843.3
196174.140.2
196070.860.4
195982.967.7
195865.739.7
195758.240
195657.951.2
195575.452.5
195487.556.9
195381.548.2
195275.546.7
195165.137.1

The month

September 2026 so far averaged 69.4°F in Montgomery County, MD, the warmest 1 to 29 September in the county average since 2021, tied 12th warmest of 76 (with 2021) (county average from NOAA gridded data, 1951 to 2026).

The month in words
  • August 2026 averaged 75.9°F in Montgomery County, MD, the warmest August in the county average since 2022, tied 20th warmest of 132 (with 2020 and 2010) (county average from NOAA's monthly county data, 1895 to 2026).
  • Tuesday 29 September 2026: a high of 69.3°F averaged over Montgomery County, MD, the coldest 29 September day in the county average since 2023, 26th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 58.9°F averaged over Montgomery County, MD, the warmest 29 September night in the county average since 2025, 19th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Sterling-Dulles Airport, VA 19.2 mi, the nearest city with its own station