Monthly outlook for New Addition, MD: average high 84.2°, average low 64.9°. That is 0.5° above the climate normal for August. Precipitation is expected on 9 days (about 1.2 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 10 August (94.5°), the coolest 22 August (55°).
84.2°/64.9°
Average high / low
+0.5°
Above normal
9 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
85.5°
84.1°
+0.8°
18 August – 27 August
82°
82.6°
-0.3°
28 August – 6 September
at normal
81.8°
—
August records over 66 years
99.7°17 August 1988All-time high
48.9°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Rohrersville (8 mi).
Sun, 0989° / 72°0
89 °
New Addition, Sunday, 9 August
Mostly clear. High 89°, low 72°.
Pressure30.06 inHg
Wind9.7 mph NW
Humidity49%
Visibility6.2 mi
Dew point66°
Mon, 1095° / 71°0.24
95 °
New Addition, Monday, 10 August
Rain. High 95°, low 71°.
Pressure30.03 inHg
Wind6.8 mph NW
Humidity53%
Visibility6.2 mi
Dew point65°
Tue, 1188° / 68°0.15
88 °
New Addition, Tuesday, 11 August
Rain. High 88°, low 68°.
Pressure29.97 inHg
Wind10.3 mph W
Humidity53%
Visibility6.2 mi
Dew point65°
Wed, 1291° / 69°0.11
91 °
New Addition, Wednesday, 12 August
Light rain. High 91°, low 69°.
Pressure29.77 inHg
Wind7.8 mph NW
Humidity61%
Visibility6.2 mi
Dew point65°
Thu, 1384° / 67°0.15
84 °
New Addition, Thursday, 13 August
Rain. High 84°, low 67°.
Pressure29.85 inHg
Wind17 mph NW
Humidity32%
Visibility—
Dew point50°
Fri, 1475° / 61°0
75 °
New Addition, Friday, 14 August
Overcast. High 75°, low 61°.
Pressure30.09 inHg
Wind7.9 mph SW
Humidity43%
Visibility—
Dew point49°
Sat, 1583° / 57°0
83 °
New Addition, Saturday, 15 August
Clear. High 83°, low 57°.
Pressure30.18 inHg
Wind10.2 mph NW
Humidity32%
Visibility—
Dew point47°
Sun, 1684° / 58°0
84 °
New Addition, Sunday, 16 August
Partly cloudy. High 84°, low 58°.
Pressure30.18 inHg
Wind7 mph SE
Humidity37%
Visibility—
Dew point51°
Mon, 1778° / 67°0.08
78 °
New Addition, Monday, 17 August
Light rain. High 78°, low 67°.
Pressure30.06 inHg
Wind15.8 mph S
Humidity66%
Visibility—
Dew point62°
Tue, 1876° / 66°0.14
76 °
New Addition, Tuesday, 18 August
Rain. High 76°, low 66°.
Pressure30.03 inHg
Wind4.9 mph SE
Humidity78%
Visibility—
Dew point66°
Wed, 1989° / 65°0.04
89 °
New Addition, Wednesday, 19 August
Light rain. High 89°, low 65°.
Pressure29.88 inHg
Wind9.2 mph SE
Humidity52%
Visibility—
Dew point64°
Thu, 2080° / 67°0.16
80 °
New Addition, Thursday, 20 August
Light rain. High 80°, low 67°.
Pressure29.74 inHg
Wind19.3 mph NW
Humidity40%
Visibility—
Dew point52°
Fri, 2182° / 58°0
82 °
New Addition, Friday, 21 August
Clear. High 82°, low 58°.
Pressure29.91 inHg
Wind12.8 mph NW
Humidity31%
Visibility—
Dew point45°
Sat, 2284° / 55°0
84 °
New Addition, Saturday, 22 August
Partly cloudy. High 84°, low 55°.
Pressure30.06 inHg
Wind7.2 mph S
Humidity34%
Visibility—
Dew point48°
Sun, 2382° / 67°0.08
82 °
New Addition, Sunday, 23 August
Light rain. High 82°, low 67°.
Pressure29.94 inHg
Wind10 mph SW
Humidity68%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2483° / 64°0.05
83 °
New Addition, Monday, 24 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.05 in
Chance of precipitation22%
Record high95° (1968)
Record low55° (1971)
Tue, 2583° / 65°0.05
83 °
New Addition, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.05 in
Chance of precipitation18%
Record high96° (2007)
Record low54° (1971)
Wed, 2684° / 65°0.05
84 °
New Addition, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low65°
Average precipitation0.05 in
Chance of precipitation23%
Record high94° (1975)
Record low55° (1963)
Thu, 2784° / 66°0.13
84 °
New Addition, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.13 in
Chance of precipitation30%
Record high94° (2020)
Record low55° (1969)
Fri, 2884° / 66°0.13
84 °
New Addition, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.13 in
Chance of precipitation33%
Record high95° (1993)
Record low55° (2025)
Sat, 2983° / 66°0.07
83 °
New Addition, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.07 in
Chance of precipitation28%
Record high94° (1973)
Record low49° (1982)
Sun, 3083° / 65°0.06
83 °
New Addition, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.06 in
Chance of precipitation27%
Record high94° (1991)
Record low49° (1986)
Mon, 3182° / 65°0.09
82 °
New Addition, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation28%
Record high95° (1973)
Record low52° (1986)
Tue, 0181° / 64°0.1
81 °
New Addition, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.1 in
Chance of precipitation33%
Record high95° (2010)
Record low52° (1967)
Wed, 0282° / 63°0.09
82 °
New Addition, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.09 in
Chance of precipitation32%
Record high96° (2010)
Record low53° (1967)
Thu, 0382° / 64°0.06
82 °
New Addition, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.06 in
Chance of precipitation23%
Record high95° (2010)
Record low49° (1967)
Fri, 0481° / 64°0.1
81 °
New Addition, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.1 in
Chance of precipitation25%
Record high96° (2023)
Record low52° (1997)
Sat, 0581° / 64°0.11
81 °
New Addition, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation28%
Record high95° (2023)
Record low52° (1997)
Sun, 0680° / 63°0.24
80 °
New Addition, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.24 in
Chance of precipitation33%
Record high96° (2023)
Record low50° (2000)
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 New Addition, 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 New Addition, 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.