Monthly outlook for Ashton-Sandy Spring, MD: average high 55.1°, average low 42.7°. That is 0.8° above the climate normal for November. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 10 November (63.8°), the coolest 23 November (31.8°).
55.1°/42.7°
Average high / low
+0.8°
Above normal
4 / 4
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 November – 17 November
56°
54.8°
+0.7°
18 November – 27 November
53.6°
51.7°
+1°
28 November – 7 December
at normal
48.1°
—
November records over 66 years
80.6°1 November 1974All-time high
13.1°24 November 1989All-time low
Climate normals and records are computed from the nearest reference point — Leisure World (5 mi).
Mon, 0961° / 48°0
61 °
Ashton-Sandy Spring, Monday, 9 November
Overcast. High 61°, low 48°.
Pressure29.97 inHg
Wind16.5 mph NW
Humidity52%
Visibility6.2 mi
Dew point38°
Tue, 1064° / 44°0
64 °
Ashton-Sandy Spring, Tuesday, 10 November
Clear. High 64°, low 44°.
Pressure30.00 inHg
Wind7.1 mph SW
Humidity52%
Visibility6.2 mi
Dew point42°
Wed, 1163° / 44°0
63 °
Ashton-Sandy Spring, Wednesday, 11 November
Clear. High 63°, low 44°.
Pressure29.97 inHg
Wind4.5 mph W
Humidity54%
Visibility6.2 mi
Dew point44°
Thu, 1256° / 50°0.6
56 °
Ashton-Sandy Spring, Thursday, 12 November
Rain. High 56°, low 50°.
Pressure29.59 inHg
Wind6.7 mph E
Humidity90%
Visibility4.4 mi
Dew point52°
Fri, 1349° / 39°0.62
49 °
Ashton-Sandy Spring, Friday, 13 November
Rain. High 49°, low 39°.
Pressure29.50 inHg
Wind14.4 mph N
Humidity98%
Visibility—
Dew point43°
Sat, 1444° / 38°0.06
44 °
Ashton-Sandy Spring, Saturday, 14 November
Light rain. High 44°, low 38°.
Pressure29.71 inHg
Wind18.4 mph NW
Humidity69%
Visibility—
Dew point33°
Sun, 1550° / 39°0
50 °
Ashton-Sandy Spring, Sunday, 15 November
Mostly clear. High 50°, low 39°.
Pressure29.85 inHg
Wind16.4 mph W
Humidity58%
Visibility—
Dew point30°
Mon, 1658° / 42°0
58 °
Ashton-Sandy Spring, Monday, 16 November
Clear. High 58°, low 42°.
Pressure29.94 inHg
Wind14.5 mph NW
Humidity65%
Visibility—
Dew point39°
Tue, 1755° / 42°0
55 °
Ashton-Sandy Spring, Tuesday, 17 November
Overcast. High 55°, low 42°.
Pressure30.15 inHg
Wind6.6 mph N
Humidity64%
Visibility—
Dew point37°
Wed, 1854° / 38°0
54 °
Ashton-Sandy Spring, Wednesday, 18 November
Clear. High 54°, low 38°.
Pressure30.27 inHg
Wind6.6 mph N
Humidity55%
Visibility—
Dew point31°
Thu, 1952° / 43°0
52 °
Ashton-Sandy Spring, Thursday, 19 November
Overcast. High 52°, low 43°.
Pressure30.30 inHg
Wind5.3 mph S
Humidity63%
Visibility—
Dew point35°
Fri, 2062° / 51°0.28
62 °
Ashton-Sandy Spring, Friday, 20 November
Rain. High 62°, low 51°.
Pressure30.09 inHg
Wind9.3 mph NW
Humidity75%
Visibility—
Dew point51°
Sat, 2157° / 46°0
57 °
Ashton-Sandy Spring, Saturday, 21 November
Clear. High 57°, low 46°.
Pressure30.06 inHg
Wind11.6 mph NW
Humidity68%
Visibility—
Dew point43°
Sun, 2251° / 42°0
51 °
Ashton-Sandy Spring, Sunday, 22 November
Overcast. High 51°, low 42°.
Pressure30.09 inHg
Wind10.7 mph NW
Humidity64%
Visibility—
Dew point37°
Mon, 2346° / 32°0
46 °
Ashton-Sandy Spring, Monday, 23 November
Overcast. High 46°, low 32°.
Pressure30.27 inHg
Wind9.9 mph N
Humidity51%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2451° / 36°0.13
51 °
Ashton-Sandy Spring, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.13 in
Chance of precipitation32%
Record high70° (1979)
Record low13° (1989)
Wed, 2551° / 36°0.09
51 °
Ashton-Sandy Spring, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation27%
Record high72° (1973)
Record low18° (1989)
Thu, 2653° / 37°0.13
53 °
Ashton-Sandy Spring, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.13 in
Chance of precipitation38%
Record high67° (2025)
Record low25° (2005)
Fri, 2752° / 38°0.09
52 °
Ashton-Sandy Spring, Friday, 27 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation37%
Record high66° (1988)
Record low24° (1974)
Sat, 2852° / 38°0.18
52 °
Ashton-Sandy Spring, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.18 in
Chance of precipitation30%
Record high70° (1990)
Record low25° (1996)
Sun, 2949° / 35°0.12
49 °
Ashton-Sandy Spring, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.12 in
Chance of precipitation32%
Record high68° (1998)
Record low22° (2023)
Mon, 3049° / 36°0.12
49 °
Ashton-Sandy Spring, Monday, 30 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation33%
Record high69° (2001)
Record low20° (1976)
Tue, 0148° / 35°0.15
48 °
Ashton-Sandy Spring, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.15 in
Chance of precipitation35%
Record high72° (2006)
Record low15° (1967)
Wed, 0248° / 34°0.09
48 °
Ashton-Sandy Spring, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.09 in
Chance of precipitation25%
Record high64° (1970)
Record low10° (1967)
Thu, 0348° / 34°0.09
48 °
Ashton-Sandy Spring, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.09 in
Chance of precipitation20%
Record high68° (1998)
Record low18° (1976)
Fri, 0448° / 34°0.08
48 °
Ashton-Sandy Spring, Friday, 4 December
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.08 in
Chance of precipitation23%
Record high72° (1982)
Record low16° (1966)
Sat, 0546° / 34°0.15
46 °
Ashton-Sandy Spring, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.15 in
Chance of precipitation32%
Record high71° (1998)
Record low24° (1966)
Sun, 0647° / 33°0.1
47 °
Ashton-Sandy Spring, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.1 in
Chance of precipitation33%
Record high75° (1998)
Record low15° (2007)
Mon, 0746° / 32°0.12
46 °
Ashton-Sandy Spring, Monday, 7 December
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.12 in
Chance of precipitation22%
Record high73° (1998)
Record low9° (2002)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Ashton-Sandy Spring, MD are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Ashton-Sandy Spring, MD since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.