Monthly outlook for Timber Grove, MD: average high 81.4°, average low 65.5°. That is 0.2° below the climate normal for August. Precipitation is expected on 8 days (about 0.9 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 12 August (90.5°), the coolest 22 August (57.4°).
81.4°/65.5°
Average high / low
−0.2°
Below normal
8 / 6
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
81.1°
82.4°
-0.7°
19 August – 28 August
81.8°
81.1°
+0.4°
29 August – 7 September
at normal
79.9°
—
August records over 66 years
97.2°15 August 1988All-time high
48°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Reisterstown (1 mi).
Mon, 1086° / 71°0.14
86 °
Timber Grove, Monday, 10 August
Rain. High 86°, low 71°.
Pressure30.00 inHg
Wind6.4 mph W
Humidity42%
Visibility6.2 mi
Dew point63°
Tue, 1186° / 68°0.26
86 °
Timber Grove, Tuesday, 11 August
Rain. High 86°, low 68°.
Pressure29.94 inHg
Wind7.5 mph W
Humidity59%
Visibility6.2 mi
Dew point68°
Wed, 1290° / 71°0.06
90 °
Timber Grove, Wednesday, 12 August
Light rain. High 90°, low 71°.
Pressure29.77 inHg
Wind9 mph W
Humidity68%
Visibility6.2 mi
Dew point66°
Thu, 1382° / 67°0.04
82 °
Timber Grove, Thursday, 13 August
Light rain. High 82°, low 67°.
Pressure29.85 inHg
Wind13.3 mph NW
Humidity34%
Visibility—
Dew point50°
Fri, 1476° / 61°0
76 °
Timber Grove, Friday, 14 August
Overcast. High 76°, low 61°.
Pressure30.06 inHg
Wind8.7 mph SW
Humidity40%
Visibility—
Dew point47°
Sat, 1579° / 60°0
79 °
Timber Grove, Saturday, 15 August
Clear. High 79°, low 60°.
Pressure30.18 inHg
Wind10.9 mph N
Humidity35%
Visibility—
Dew point46°
Sun, 1682° / 60°0
82 °
Timber Grove, Sunday, 16 August
Overcast. High 82°, low 60°.
Pressure30.18 inHg
Wind7 mph SE
Humidity36%
Visibility—
Dew point50°
Mon, 1772° / 66°0.05
72 °
Timber Grove, Monday, 17 August
Light rain. High 72°, low 66°.
Pressure30.09 inHg
Wind8.5 mph S
Humidity68%
Visibility—
Dew point61°
Tue, 1872° / 66°0.14
72 °
Timber Grove, Tuesday, 18 August
Light rain. High 72°, low 66°.
Pressure30.06 inHg
Wind6 mph S
Humidity80%
Visibility—
Dew point65°
Wed, 1981° / 67°0.06
81 °
Timber Grove, Wednesday, 19 August
Light rain. High 81°, low 67°.
Pressure29.91 inHg
Wind10.2 mph S
Humidity73%
Visibility—
Dew point66°
Thu, 2078° / 65°0.15
78 °
Timber Grove, Thursday, 20 August
Light rain. High 78°, low 65°.
Pressure29.74 inHg
Wind17.1 mph NW
Humidity42%
Visibility—
Dew point51°
Fri, 2179° / 58°0
79 °
Timber Grove, Friday, 21 August
Clear. High 79°, low 58°.
Pressure29.91 inHg
Wind11.9 mph NW
Humidity35%
Visibility—
Dew point46°
Sat, 2280° / 57°0
80 °
Timber Grove, Saturday, 22 August
Partly cloudy. High 80°, low 57°.
Pressure30.06 inHg
Wind7.1 mph SE
Humidity33%
Visibility—
Dew point45°
Sun, 2383° / 69°0.01
83 °
Timber Grove, Sunday, 23 August
Light rain. High 83°, low 69°.
Pressure29.94 inHg
Wind13.5 mph SW
Humidity62%
Visibility—
Dew point65°
Mon, 2490° / 71°0
90 °
Timber Grove, Monday, 24 August
Clear. High 90°, low 71°.
Pressure29.91 inHg
Wind13.9 mph W
Humidity29%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 65°0.06
82 °
Timber Grove, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation20%
Record high94° (1968)
Record low55° (1987)
Wed, 2682° / 65°0.06
82 °
Timber Grove, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation25%
Record high93° (1975)
Record low55° (1963)
Thu, 2782° / 66°0.15
82 °
Timber Grove, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.15 in
Chance of precipitation37%
Record high91° (2020)
Record low55° (1969)
Fri, 2882° / 66°0.17
82 °
Timber Grove, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.17 in
Chance of precipitation45%
Record high95° (1973)
Record low55° (1968)
Sat, 2981° / 66°0.1
81 °
Timber Grove, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.1 in
Chance of precipitation30%
Record high94° (1973)
Record low49° (1982)
Sun, 3082° / 65°0.07
82 °
Timber Grove, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation25%
Record high93° (1973)
Record low48° (1986)
Mon, 3181° / 65°0.07
81 °
Timber Grove, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation28%
Record high94° (1973)
Record low52° (1976)
Tue, 0179° / 64°0.13
79 °
Timber Grove, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.13 in
Chance of precipitation28%
Record high94° (1973)
Record low52° (1967)
Wed, 0280° / 63°0.12
80 °
Timber Grove, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.12 in
Chance of precipitation40%
Record high94° (1980)
Record low53° (1967)
Thu, 0380° / 64°0.11
80 °
Timber Grove, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation28%
Record high93° (2023)
Record low49° (1967)
Fri, 0480° / 64°0.11
80 °
Timber Grove, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation35%
Record high96° (2023)
Record low52° (1997)
Sat, 0579° / 63°0.14
79 °
Timber Grove, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.14 in
Chance of precipitation30%
Record high95° (2023)
Record low52° (1997)
Sun, 0679° / 63°0.25
79 °
Timber Grove, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.25 in
Chance of precipitation32%
Record high95° (2023)
Record low51° (2000)
Mon, 0779° / 62°0.09
79 °
Timber Grove, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation27%
Record high90° (1998)
Record low49° (1984)
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 Timber Grove, 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 Timber Grove, 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.