Monthly outlook for Oak Grove, MO: average high 98.5°, average low 74.9°. That is 6.9° above the climate normal for August. Precipitation is expected on 4 days (about 0.2 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 20 August (113.9°), the coolest 15 August (68.5°).
98.5°/74.9°
Average high / low
+6.9°
Above normal
4 / 5
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
92.6°
86.1°
+3.6°
19 August – 28 August
108.4°
86.3°
+12.3°
29 August – 7 September
at normal
83.7°
—
August records over 66 years
106.5°2 August 2011All-time high
52.2°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Wellington (12 mi).
Mon, 1094° / 77°0
94 °
Oak Grove, Monday, 10 August
Overcast. High 94°, low 77°.
Pressure29.91 inHg
Wind10.4 mph SW
Humidity56%
Visibility6.2 mi
Dew point71°
Tue, 1199° / 71°0.04
99 °
Oak Grove, Tuesday, 11 August
Light rain. High 99°, low 71°.
Pressure29.80 inHg
Wind16.9 mph SW
Humidity56%
Visibility6.2 mi
Dew point72°
Wed, 1291° / 73°0.06
91 °
Oak Grove, Wednesday, 12 August
Light rain. High 91°, low 73°.
Pressure29.80 inHg
Wind5.6 mph S
Humidity61%
Visibility6.2 mi
Dew point71°
Thu, 1394° / 71°0
94 °
Oak Grove, Thursday, 13 August
Overcast. High 94°, low 71°.
Pressure29.83 inHg
Wind22 mph E
Humidity58%
Visibility—
Dew point69°
Fri, 1483° / 69°0.01
83 °
Oak Grove, Friday, 14 August
Light rain. High 83°, low 69°.
Pressure29.97 inHg
Wind15.9 mph E
Humidity68%
Visibility—
Dew point66°
Sat, 1588° / 69°0
88 °
Oak Grove, Saturday, 15 August
Overcast. High 88°, low 69°.
Pressure30.06 inHg
Wind13.9 mph E
Humidity68%
Visibility—
Dew point70°
Sun, 1691° / 70°0
91 °
Oak Grove, Sunday, 16 August
Overcast. High 91°, low 70°.
Pressure30.06 inHg
Wind10.2 mph NE
Humidity58%
Visibility—
Dew point69°
Mon, 1782° / 71°0.08
82 °
Oak Grove, Monday, 17 August
Light rain. High 82°, low 71°.
Pressure30.06 inHg
Wind8.1 mph E
Humidity78%
Visibility—
Dew point70°
Tue, 18103° / 72°0
103 °
Oak Grove, Tuesday, 18 August
Partly cloudy. High 103°, low 72°.
Pressure29.85 inHg
Wind9.6 mph S
Humidity43%
Visibility—
Dew point66°
Wed, 19112° / 84°0
112 °
Oak Grove, Wednesday, 19 August
Clear. High 112°, low 84°.
Pressure29.83 inHg
Wind13.9 mph SW
Humidity22%
Visibility—
Dew point56°
Thu, 20114° / 84°0
114 °
Oak Grove, Thursday, 20 August
Clear. High 114°, low 84°.
Pressure29.80 inHg
Wind16.2 mph SW
Humidity19%
Visibility—
Dew point55°
Fri, 21107° / 76°0
107 °
Oak Grove, Friday, 21 August
Partly cloudy. High 107°, low 76°.
Pressure29.85 inHg
Wind8.1 mph SE
Humidity31%
Visibility—
Dew point62°
Sat, 22111° / 84°0.02
111 °
Oak Grove, Saturday, 22 August
Light rain. High 111°, low 84°.
Pressure29.80 inHg
Wind14.7 mph SW
Humidity20%
Visibility—
Dew point55°
Sun, 23106° / 79°0
106 °
Oak Grove, Sunday, 23 August
Light rain. High 106°, low 79°.
Pressure29.83 inHg
Wind19.5 mph SW
Humidity28%
Visibility—
Dew point61°
Mon, 24101° / 72°0.04
101 °
Oak Grove, Monday, 24 August
Light rain. High 101°, low 72°.
Pressure29.94 inHg
Wind8.7 mph SE
Humidity35%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 69°0.12
87 °
Oak Grove, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.12 in
Chance of precipitation25%
Record high100° (2003)
Record low57° (2025)
Wed, 2687° / 69°0.2
87 °
Oak Grove, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.2 in
Chance of precipitation32%
Record high100° (1983)
Record low53° (2025)
Thu, 2787° / 69°0.06
87 °
Oak Grove, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.06 in
Chance of precipitation23%
Record high101° (1983)
Record low56° (1967)
Fri, 2886° / 68°0.07
86 °
Oak Grove, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.07 in
Chance of precipitation27%
Record high101° (2000)
Record low52° (1986)
Sat, 2985° / 68°0.1
85 °
Oak Grove, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.1 in
Chance of precipitation28%
Record high104° (1984)
Record low55° (1988)
Sun, 3085° / 68°0.12
85 °
Oak Grove, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.12 in
Chance of precipitation32%
Record high99° (2000)
Record low55° (2009)
Mon, 3184° / 67°0.17
84 °
Oak Grove, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.17 in
Chance of precipitation33%
Record high100° (2000)
Record low56° (1967)
Tue, 0184° / 67°0.15
84 °
Oak Grove, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.15 in
Chance of precipitation28%
Record high100° (2011)
Record low53° (1967)
Wed, 0284° / 67°0.11
84 °
Oak Grove, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.11 in
Chance of precipitation37%
Record high100° (2000)
Record low53° (1974)
Thu, 0384° / 67°0.09
84 °
Oak Grove, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.09 in
Chance of precipitation23%
Record high97° (2000)
Record low48° (1974)
Fri, 0483° / 66°0.1
83 °
Oak Grove, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.1 in
Chance of precipitation28%
Record high94° (1990)
Record low48° (1974)
Sat, 0583° / 65°0.09
83 °
Oak Grove, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.09 in
Chance of precipitation23%
Record high95° (1998)
Record low48° (1974)
Sun, 0683° / 65°0.07
83 °
Oak Grove, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.07 in
Chance of precipitation25%
Record high97° (1990)
Record low51° (1974)
Mon, 0783° / 65°0.12
83 °
Oak Grove, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.12 in
Chance of precipitation32%
Record high95° (2013)
Record low51° (2025)
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, MO 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, MO 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.