Monthly outlook for Mill Swamp, MD: average high 67.6°, average low 53.1°. That is 1.7° above the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 14 October (85.4°), the coolest 18 October (39.3°).
67.6°/53.1°
Average high / low
+1.7°
Above normal
5 / 4
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
70.3°
65.6°
+2.6°
22 October – 31 October
63.1°
62°
+0.6°
1 November – 10 November
at normal
59.3°
—
October records over 66 years
93.9°2 October 2019All-time high
33.4°28 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Annapolis (7 mi).
Tue, 1381° / 56°0
81 °
Mill Swamp, Tuesday, 13 October
Clear. High 81°, low 56°.
Pressure29.97 inHg
Wind6.2 mph SW
Humidity62%
Visibility6.2 mi
Dew point63°
Wed, 1485° / 65°0.02
85 °
Mill Swamp, Wednesday, 14 October
Light rain. High 85°, low 65°.
Pressure29.97 inHg
Wind8.1 mph W
Humidity57%
Visibility6.2 mi
Dew point66°
Thu, 1571° / 59°0.22
71 °
Mill Swamp, Thursday, 15 October
Rain. High 71°, low 59°.
Pressure30.21 inHg
Wind6.6 mph NE
Humidity62%
Visibility6.2 mi
Dew point52°
Fri, 1684° / 60°0.28
84 °
Mill Swamp, Friday, 16 October
Rain. High 84°, low 60°.
Pressure29.68 inHg
Wind12.4 mph SW
Humidity70%
Visibility6.2 mi
Dew point68°
Sat, 1755° / 47°0
55 °
Mill Swamp, Saturday, 17 October
Clear. High 55°, low 47°.
Pressure30.27 inHg
Wind14.7 mph NW
Humidity46%
Visibility—
Dew point32°
Sun, 1859° / 39°0
59 °
Mill Swamp, Sunday, 18 October
Clear. High 59°, low 39°.
Pressure30.50 inHg
Wind8.6 mph S
Humidity51%
Visibility—
Dew point35°
Mon, 1963° / 41°0
63 °
Mill Swamp, Monday, 19 October
Clear. High 63°, low 41°.
Pressure30.53 inHg
Wind9.9 mph S
Humidity55%
Visibility—
Dew point39°
Tue, 2066° / 50°0
66 °
Mill Swamp, Tuesday, 20 October
Overcast. High 66°, low 50°.
Pressure30.36 inHg
Wind5.9 mph SW
Humidity68%
Visibility—
Dew point48°
Wed, 2165° / 54°0
65 °
Mill Swamp, Wednesday, 21 October
Clear. High 65°, low 54°.
Pressure30.36 inHg
Wind7.9 mph NE
Humidity61%
Visibility—
Dew point47°
Thu, 2265° / 54°0
65 °
Mill Swamp, Thursday, 22 October
Clear. High 65°, low 54°.
Pressure30.47 inHg
Wind9.8 mph SE
Humidity70%
Visibility—
Dew point50°
Fri, 2368° / 52°0
68 °
Mill Swamp, Friday, 23 October
Partly cloudy. High 68°, low 52°.
Pressure30.39 inHg
Wind10.6 mph S
Humidity67%
Visibility—
Dew point51°
Sat, 2470° / 58°0
70 °
Mill Swamp, Saturday, 24 October
Overcast. High 70°, low 58°.
Pressure30.21 inHg
Wind10.1 mph SW
Humidity67%
Visibility—
Dew point56°
Sun, 2564° / 56°0.05
64 °
Mill Swamp, Sunday, 25 October
Light rain. High 64°, low 56°.
Pressure30.24 inHg
Wind8.3 mph E
Humidity70%
Visibility—
Dew point47°
Mon, 2655° / 51°0.49
55 °
Mill Swamp, Monday, 26 October
Rain. High 55°, low 51°.
Pressure30.06 inHg
Wind11.8 mph N
Humidity81%
Visibility—
Dew point47°
Tue, 2758° / 48°0
58 °
Mill Swamp, Tuesday, 27 October
Overcast. High 58°, low 48°.
Pressure29.74 inHg
Wind13 mph NW
Humidity49%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2862° / 50°0.13
62 °
Mill Swamp, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high62°
Average low50°
Average precipitation0.13 in
Chance of precipitation27%
Record high81° (2023)
Record low33° (1976)
Thu, 2960° / 48°0.26
60 °
Mill Swamp, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high60°
Average low48°
Average precipitation0.26 in
Chance of precipitation20%
Record high77° (1984)
Record low34° (1965)
Fri, 3060° / 47°0.11
60 °
Mill Swamp, Friday, 30 October
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.11 in
Chance of precipitation28%
Record high80° (2023)
Record low35° (2011)
Sat, 3161° / 49°0.06
61 °
Mill Swamp, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high61°
Average low49°
Average precipitation0.06 in
Chance of precipitation23%
Record high78° (2024)
Record low37° (1975)
Sun, 0162° / 50°0.11
62 °
Mill Swamp, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high62°
Average low50°
Average precipitation0.11 in
Chance of precipitation25%
Record high79° (1974)
Record low39° (2023)
Mon, 0262° / 50°0.11
62 °
Mill Swamp, Monday, 2 November
Climate normal for this date — 60-year average.
Average high62°
Average low50°
Average precipitation0.11 in
Chance of precipitation30%
Record high77° (1971)
Record low36° (2023)
Tue, 0361° / 48°0.08
61 °
Mill Swamp, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.08 in
Chance of precipitation23%
Record high76° (2016)
Record low36° (1996)
Wed, 0459° / 47°0.11
59 °
Mill Swamp, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.11 in
Chance of precipitation25%
Record high78° (1974)
Record low34° (2006)
Thu, 0559° / 47°0.13
59 °
Mill Swamp, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.13 in
Chance of precipitation25%
Record high75° (1961)
Record low31° (1991)
Fri, 0658° / 47°0.08
58 °
Mill Swamp, Friday, 6 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.08 in
Chance of precipitation23%
Record high79° (2024)
Record low33° (1967)
Sat, 0758° / 46°0.08
58 °
Mill Swamp, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.08 in
Chance of precipitation25%
Record high78° (2024)
Record low33° (1967)
Sun, 0858° / 45°0.15
58 °
Mill Swamp, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.15 in
Chance of precipitation22%
Record high73° (1975)
Record low33° (1967)
Mon, 0958° / 45°0.08
58 °
Mill Swamp, Monday, 9 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.08 in
Chance of precipitation28%
Record high75° (2023)
Record low30° (1976)
Tue, 1058° / 45°0.16
58 °
Mill Swamp, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.16 in
Chance of precipitation35%
Record high71° (2020)
Record low33° (2017)
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 Mill Swamp, 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 Mill Swamp, 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.