Monthly outlook for Oak Grove, DE: average high 82.8°, average low 67.3°. That is 0.3° above the climate normal for August. Precipitation is expected on 6 days (about 1.5 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 10 August (93°), the coolest 22 August (60.6°).
82.8°/67.3°
Average high / low
+0.3°
Above normal
6 / 6
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.3°
83°
+0.2°
19 August – 28 August
82.1°
81.6°
+0.2°
29 August – 7 September
at normal
80.6°
—
August records over 66 years
96.1°3 August 2006All-time high
52.9°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Dover (2 mi).
Mon, 1093° / 73°0.06
93 °
Oak Grove, Monday, 10 August
Light rain. High 93°, low 73°.
Pressure30.00 inHg
Wind5.5 mph NW
Humidity52%
Visibility6.2 mi
Dew point71°
Tue, 1191° / 72°0.39
91 °
Oak Grove, Tuesday, 11 August
Rain. High 91°, low 72°.
Pressure29.91 inHg
Wind1 mph N
Humidity58%
Visibility6.2 mi
Dew point70°
Wed, 1285° / 73°0
85 °
Oak Grove, Wednesday, 12 August
Overcast. High 85°, low 73°.
Pressure29.77 inHg
Wind14.9 mph W
Humidity58%
Visibility6.2 mi
Dew point68°
Thu, 1384° / 69°0.06
84 °
Oak Grove, Thursday, 13 August
Light rain. High 84°, low 69°.
Pressure29.80 inHg
Wind14 mph NW
Humidity60%
Visibility—
Dew point64°
Fri, 1476° / 62°0
76 °
Oak Grove, Friday, 14 August
Overcast. High 76°, low 62°.
Pressure30.06 inHg
Wind10.1 mph SW
Humidity43%
Visibility—
Dew point49°
Sat, 1579° / 62°0
79 °
Oak Grove, Saturday, 15 August
Clear. High 79°, low 62°.
Pressure30.15 inHg
Wind13.6 mph NW
Humidity40%
Visibility—
Dew point51°
Sun, 1681° / 64°0
81 °
Oak Grove, Sunday, 16 August
Overcast. High 81°, low 64°.
Pressure30.18 inHg
Wind8.1 mph N
Humidity36%
Visibility—
Dew point49°
Mon, 1781° / 65°0.01
81 °
Oak Grove, Monday, 17 August
Light rain. High 81°, low 65°.
Pressure30.09 inHg
Wind10.4 mph S
Humidity54%
Visibility—
Dew point61°
Tue, 1873° / 66°0.45
73 °
Oak Grove, Tuesday, 18 August
Rain. High 73°, low 66°.
Pressure30.06 inHg
Wind13 mph SE
Humidity73%
Visibility—
Dew point63°
Wed, 1978° / 68°0.04
78 °
Oak Grove, Wednesday, 19 August
Light rain. High 78°, low 68°.
Pressure29.94 inHg
Wind12 mph S
Humidity70%
Visibility—
Dew point65°
Thu, 2080° / 70°0.51
80 °
Oak Grove, Thursday, 20 August
Rain. High 80°, low 70°.
Pressure29.71 inHg
Wind17 mph NW
Humidity46%
Visibility—
Dew point56°
Fri, 2178° / 62°0
78 °
Oak Grove, Friday, 21 August
Clear. High 78°, low 62°.
Pressure29.88 inHg
Wind16.6 mph NW
Humidity41%
Visibility—
Dew point50°
Sat, 2280° / 61°0
80 °
Oak Grove, Saturday, 22 August
Clear. High 80°, low 61°.
Pressure30.06 inHg
Wind9.1 mph S
Humidity32%
Visibility—
Dew point45°
Sun, 2386° / 64°0
86 °
Oak Grove, Sunday, 23 August
Overcast. High 86°, low 64°.
Pressure29.97 inHg
Wind18.2 mph SW
Humidity54%
Visibility—
Dew point65°
Mon, 2491° / 72°0
91 °
Oak Grove, Monday, 24 August
Clear. High 91°, low 72°.
Pressure29.91 inHg
Wind14 mph W
Humidity44%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 68°0.06
82 °
Oak Grove, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low68°
Average precipitation0.06 in
Chance of precipitation15%
Record high94° (1968)
Record low60° (1963)
Wed, 2682° / 69°0.07
82 °
Oak Grove, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.07 in
Chance of precipitation22%
Record high91° (1975)
Record low60° (1963)
Thu, 2783° / 70°0.14
83 °
Oak Grove, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low70°
Average precipitation0.14 in
Chance of precipitation33%
Record high91° (2020)
Record low59° (2025)
Fri, 2882° / 70°0.22
82 °
Oak Grove, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.22 in
Chance of precipitation47%
Record high95° (2024)
Record low58° (2025)
Sat, 2982° / 69°0.1
82 °
Oak Grove, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.1 in
Chance of precipitation27%
Record high93° (1973)
Record low53° (1982)
Sun, 3082° / 69°0.08
82 °
Oak Grove, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.08 in
Chance of precipitation23%
Record high93° (1973)
Record low53° (1986)
Mon, 3182° / 69°0.07
82 °
Oak Grove, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (1973)
Record low55° (1986)
Tue, 0180° / 68°0.15
80 °
Oak Grove, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.15 in
Chance of precipitation27%
Record high92° (1980)
Record low58° (1986)
Wed, 0280° / 68°0.11
80 °
Oak Grove, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.11 in
Chance of precipitation37%
Record high94° (1980)
Record low58° (2023)
Thu, 0381° / 68°0.13
81 °
Oak Grove, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.13 in
Chance of precipitation30%
Record high92° (1993)
Record low54° (1967)
Fri, 0481° / 68°0.09
81 °
Oak Grove, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.09 in
Chance of precipitation25%
Record high95° (2023)
Record low56° (1997)
Sat, 0580° / 68°0.09
80 °
Oak Grove, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.09 in
Chance of precipitation27%
Record high94° (2023)
Record low57° (1997)
Sun, 0680° / 67°0.18
80 °
Oak Grove, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low67°
Average precipitation0.18 in
Chance of precipitation33%
Record high96° (2023)
Record low56° (1962)
Mon, 0780° / 66°0.08
80 °
Oak Grove, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.08 in
Chance of precipitation27%
Record high91° (1998)
Record low55° (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 Oak Grove, DE 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 Oak Grove, DE 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.