Monthly outlook for Sandy Spring, MD: average high 67°, average low 48.5°. That is 0.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 13 October (83.5°), the coolest 19 October (35.3°).
67°/48.5°
Average high / low
+0.7°
Above normal
3 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
71.9°
67.1°
+2.6°
17 October – 26 October
59°
62.9°
-2.2°
27 October – 5 November
at normal
60.3°
—
October records over 66 years
93°2 October 2019All-time high
28.6°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Rossmoor (4 mi).
Thu, 0876° / 52°0
76 °
Sandy Spring, Thursday, 8 October
Clear. High 76°, low 52°.
Pressure29.94 inHg
Wind11.6 mph NW
Humidity40%
Visibility6.2 mi
Dew point47°
Fri, 0971° / 47°0
71 °
Sandy Spring, Friday, 9 October
Clear. High 71°, low 47°.
Pressure30.24 inHg
Wind9.8 mph W
Humidity41%
Visibility6.2 mi
Dew point44°
Sat, 1069° / 53°0
69 °
Sandy Spring, Saturday, 10 October
Overcast. High 69°, low 53°.
Pressure30.47 inHg
Wind7.5 mph E
Humidity43%
Visibility6.2 mi
Dew point44°
Sun, 1166° / 56°0.09
66 °
Sandy Spring, Sunday, 11 October
Light rain. High 66°, low 56°.
Pressure30.30 inHg
Wind8.9 mph E
Humidity75%
Visibility6.2 mi
Dew point56°
Mon, 1276° / 64°0.09
76 °
Sandy Spring, Monday, 12 October
Light rain. High 76°, low 64°.
Pressure29.80 inHg
Wind10.4 mph NW
Humidity91%
Visibility—
Dew point66°
Tue, 1384° / 61°0.04
84 °
Sandy Spring, Tuesday, 13 October
Light rain. High 84°, low 61°.
Pressure29.77 inHg
Wind15.4 mph NW
Humidity73%
Visibility—
Dew point59°
Wed, 1462° / 48°0
62 °
Sandy Spring, Wednesday, 14 October
Clear. High 62°, low 48°.
Pressure30.06 inHg
Wind15.8 mph NW
Humidity45%
Visibility—
Dew point32°
Thu, 1568° / 45°0
68 °
Sandy Spring, Thursday, 15 October
Clear. High 68°, low 45°.
Pressure30.15 inHg
Wind8.7 mph N
Humidity39%
Visibility—
Dew point33°
Fri, 1676° / 55°0.04
76 °
Sandy Spring, Friday, 16 October
Light rain. High 76°, low 55°.
Pressure30.00 inHg
Wind12.4 mph NW
Humidity39%
Visibility—
Dew point40°
Sat, 1763° / 49°0
63 °
Sandy Spring, Saturday, 17 October
Clear. High 63°, low 49°.
Pressure29.97 inHg
Wind16 mph NW
Humidity54%
Visibility—
Dew point43°
Sun, 1854° / 41°0
54 °
Sandy Spring, Sunday, 18 October
Clear. High 54°, low 41°.
Pressure30.24 inHg
Wind12.3 mph NW
Humidity45%
Visibility—
Dew point29°
Mon, 1951° / 35°0
51 °
Sandy Spring, Monday, 19 October
Clear. High 51°, low 35°.
Pressure30.59 inHg
Wind11.4 mph N
Humidity36%
Visibility—
Dew point19°
Tue, 2056° / 36°0
56 °
Sandy Spring, Tuesday, 20 October
Clear. High 56°, low 36°.
Pressure30.59 inHg
Wind5.3 mph N
Humidity31%
Visibility—
Dew point18°
Wed, 2164° / 41°0
64 °
Sandy Spring, Wednesday, 21 October
Overcast. High 64°, low 41°.
Pressure30.21 inHg
Wind8.5 mph NW
Humidity35%
Visibility—
Dew point26°
Thu, 2265° / 50°0
65 °
Sandy Spring, Thursday, 22 October
Overcast. High 65°, low 50°.
Pressure29.94 inHg
Wind6.1 mph E
Humidity53%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2363° / 47°0.12
63 °
Sandy Spring, Friday, 23 October
Climate normal for this date — 60-year average.
Average high63°
Average low47°
Average precipitation0.12 in
Chance of precipitation20%
Record high79° (2007)
Record low33° (1997)
Sat, 2462° / 48°0.09
62 °
Sandy Spring, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high62°
Average low48°
Average precipitation0.09 in
Chance of precipitation28%
Record high80° (2001)
Record low29° (1969)
Sun, 2561° / 47°0.18
61 °
Sandy Spring, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.18 in
Chance of precipitation30%
Record high77° (2021)
Record low34° (1962)
Mon, 2661° / 47°0.14
61 °
Sandy Spring, Monday, 26 October
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.14 in
Chance of precipitation27%
Record high78° (2023)
Record low32° (1962)
Tue, 2761° / 47°0.15
61 °
Sandy Spring, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.15 in
Chance of precipitation28%
Record high80° (1963)
Record low32° (1962)
Wed, 2862° / 47°0.1
62 °
Sandy Spring, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.1 in
Chance of precipitation25%
Record high80° (2023)
Record low29° (1976)
Thu, 2960° / 45°0.22
60 °
Sandy Spring, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.22 in
Chance of precipitation22%
Record high77° (1984)
Record low30° (1965)
Fri, 3060° / 44°0.11
60 °
Sandy Spring, Friday, 30 October
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.11 in
Chance of precipitation27%
Record high79° (2016)
Record low30° (2011)
Sat, 3161° / 45°0.05
61 °
Sandy Spring, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high61°
Average low45°
Average precipitation0.05 in
Chance of precipitation20%
Record high79° (2024)
Record low30° (2011)
Sun, 0161° / 47°0.09
61 °
Sandy Spring, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.09 in
Chance of precipitation27%
Record high80° (1974)
Record low35° (2002)
Mon, 0261° / 46°0.12
61 °
Sandy Spring, Monday, 2 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.12 in
Chance of precipitation30%
Record high79° (1971)
Record low32° (1976)
Tue, 0360° / 45°0.06
60 °
Sandy Spring, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.06 in
Chance of precipitation22%
Record high76° (2003)
Record low32° (1996)
Wed, 0459° / 43°0.11
59 °
Sandy Spring, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.11 in
Chance of precipitation20%
Record high79° (1974)
Record low29° (2006)
Thu, 0558° / 44°0.09
58 °
Sandy Spring, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.09 in
Chance of precipitation27%
Record high77° (1961)
Record low26° (1991)
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 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 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.