Monthly outlook for Rock Run, MD: average high 64.1°, average low 46.2°. That is 1° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 16 October (85.4°), the coolest 25 October (34.9°).
64.1°/46.2°
Average high / low
+1°
Above normal
2 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
65.4°
63.4°
+1.1°
25 October – 3 November
61.9°
60.4°
+0.8°
4 November – 13 November
at normal
56.1°
—
October records over 66 years
93.7°2 October 2019All-time high
31.6°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Aberdeen Proving Ground (10 mi).
Fri, 1685° / 63°0.25
85 °
Rock Run, Friday, 16 October
Rain. High 85°, low 63°.
Pressure29.80 inHg
Wind10.9 mph SW
Humidity79%
Visibility6.2 mi
Dew point66°
Sat, 1766° / 46°0
66 °
Rock Run, Saturday, 17 October
Light rain. High 66°, low 46°.
Pressure30.21 inHg
Wind15.5 mph N
Humidity48%
Visibility6.2 mi
Dew point34°
Sun, 1858° / 42°0
58 °
Rock Run, Sunday, 18 October
Clear. High 58°, low 42°.
Pressure30.62 inHg
Wind0.1 mph S
Humidity51%
Visibility6.2 mi
Dew point37°
Mon, 1962° / 43°0
62 °
Rock Run, Monday, 19 October
Clear. High 62°, low 43°.
Pressure30.56 inHg
Wind2.8 mph S
Humidity58%
Visibility6.2 mi
Dew point43°
Tue, 2065° / 45°0
65 °
Rock Run, Tuesday, 20 October
Clear. High 65°, low 45°.
Pressure30.39 inHg
Wind4.7 mph N
Humidity62%
Visibility—
Dew point45°
Wed, 2166° / 49°0
66 °
Rock Run, Wednesday, 21 October
Overcast. High 66°, low 49°.
Pressure30.33 inHg
Wind8.3 mph N
Humidity61%
Visibility—
Dew point47°
Thu, 2265° / 47°0
65 °
Rock Run, Thursday, 22 October
Clear. High 65°, low 47°.
Pressure30.39 inHg
Wind4.6 mph S
Humidity66%
Visibility—
Dew point47°
Fri, 2363° / 46°0
63 °
Rock Run, Friday, 23 October
Overcast. High 63°, low 46°.
Pressure30.33 inHg
Wind12 mph N
Humidity68%
Visibility—
Dew point47°
Sat, 2453° / 37°0
53 °
Rock Run, Saturday, 24 October
Mostly clear. High 53°, low 37°.
Pressure30.62 inHg
Wind9 mph NE
Humidity60%
Visibility—
Dew point33°
Sun, 2554° / 35°0
54 °
Rock Run, Sunday, 25 October
Overcast. High 54°, low 35°.
Pressure30.50 inHg
Wind10.7 mph NE
Humidity53%
Visibility—
Dew point30°
Mon, 2662° / 38°0
62 °
Rock Run, Monday, 26 October
Clear. High 62°, low 38°.
Pressure30.42 inHg
Wind14.1 mph N
Humidity47%
Visibility—
Dew point33°
Tue, 2760° / 41°0
60 °
Rock Run, Tuesday, 27 October
Partly cloudy. High 60°, low 41°.
Pressure30.42 inHg
Wind6.9 mph S
Humidity61%
Visibility—
Dew point39°
Wed, 2869° / 50°0
69 °
Rock Run, Wednesday, 28 October
Overcast. High 69°, low 50°.
Pressure30.15 inHg
Wind14.2 mph NW
Humidity63%
Visibility—
Dew point51°
Thu, 2957° / 46°0.05
57 °
Rock Run, Thursday, 29 October
Light rain. High 57°, low 46°.
Pressure30.36 inHg
Wind7.2 mph NE
Humidity74%
Visibility—
Dew point42°
Fri, 3069° / 52°0
69 °
Rock Run, Friday, 30 October
Overcast. High 69°, low 52°.
Pressure30.15 inHg
Wind7.8 mph S
Humidity84%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3160° / 47°0.06
60 °
Rock Run, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.06 in
Chance of precipitation22%
Record high75° (2024)
Record low35° (2011)
Sun, 0161° / 49°0.09
61 °
Rock Run, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high61°
Average low49°
Average precipitation0.09 in
Chance of precipitation22%
Record high78° (2024)
Record low38° (2002)
Mon, 0261° / 48°0.1
61 °
Rock Run, Monday, 2 November
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.1 in
Chance of precipitation30%
Record high76° (1971)
Record low35° (2002)
Tue, 0360° / 47°0.08
60 °
Rock Run, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.08 in
Chance of precipitation22%
Record high73° (2003)
Record low35° (1996)
Wed, 0458° / 46°0.08
58 °
Rock Run, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.08 in
Chance of precipitation17%
Record high75° (1974)
Record low33° (2006)
Thu, 0558° / 46°0.11
58 °
Rock Run, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (2022)
Record low30° (1991)
Fri, 0657° / 45°0.07
57 °
Rock Run, Friday, 6 November
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.07 in
Chance of precipitation25%
Record high78° (2024)
Record low31° (1991)
Sat, 0757° / 45°0.07
57 °
Rock Run, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.07 in
Chance of precipitation22%
Record high77° (2024)
Record low31° (1962)
Sun, 0856° / 44°0.15
56 °
Rock Run, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.15 in
Chance of precipitation20%
Record high72° (1975)
Record low31° (1967)
Mon, 0956° / 44°0.09
56 °
Rock Run, Monday, 9 November
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.09 in
Chance of precipitation25%
Record high73° (1975)
Record low29° (1976)
Tue, 1057° / 44°0.15
57 °
Rock Run, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.15 in
Chance of precipitation32%
Record high70° (1999)
Record low31° (2017)
Wed, 1155° / 43°0.15
55 °
Rock Run, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.15 in
Chance of precipitation27%
Record high72° (2024)
Record low24° (2017)
Thu, 1254° / 42°0.2
54 °
Rock Run, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.2 in
Chance of precipitation40%
Record high70° (2022)
Record low29° (1987)
Fri, 1353° / 41°0.11
53 °
Rock Run, Friday, 13 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.11 in
Chance of precipitation33%
Record high70° (1964)
Record low24° (2019)
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 Rock Run, 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 Rock Run, 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.