Monthly outlook for Greenlawn, MO: average high 84.9°, average low 68.1°. That is 0.1° below the climate normal for August. Precipitation is expected on 6 days (about 3.2 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 11 August (102.2°), the coolest 21 August (54.4°).
84.9°/68.1°
Average high / low
−0.1°
Below normal
6 / 4
Wet days / normal
3.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.6°
85°
+0.9°
18 August – 27 August
82.1°
85.2°
-1.7°
28 August – 6 September
at normal
83.1°
—
August records over 66 years
103.1°2 August 2011All-time high
50.9°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Perry (3 mi).
Sun, 0993° / 73°0
93 °
Greenlawn, Sunday, 9 August
Overcast. High 93°, low 73°.
Pressure29.88 inHg
Wind14 mph S
Humidity54%
Visibility6.2 mi
Dew point71°
Mon, 1098° / 78°0
98 °
Greenlawn, Monday, 10 August
Overcast. High 98°, low 78°.
Pressure29.88 inHg
Wind14.3 mph SW
Humidity48%
Visibility6.2 mi
Dew point70°
Tue, 11102° / 82°0
102 °
Greenlawn, Tuesday, 11 August
Partly cloudy. High 102°, low 82°.
Pressure29.80 inHg
Wind17.1 mph SW
Humidity40%
Visibility6.2 mi
Dew point67°
Wed, 1289° / 73°0.29
89 °
Greenlawn, Wednesday, 12 August
Rain. High 89°, low 73°.
Pressure29.85 inHg
Wind10 mph N
Humidity55%
Visibility6.2 mi
Dew point67°
Thu, 1381° / 68°1.5
81 °
Greenlawn, Thursday, 13 August
Heavy rain. High 81°, low 68°.
Pressure29.85 inHg
Wind19.3 mph NE
Humidity77%
Visibility—
Dew point71°
Fri, 1475° / 67°0.66
75 °
Greenlawn, Friday, 14 August
Rain. High 75°, low 67°.
Pressure30.03 inHg
Wind12.8 mph E
Humidity86%
Visibility—
Dew point69°
Sat, 1581° / 68°0.27
81 °
Greenlawn, Saturday, 15 August
Light rain. High 81°, low 68°.
Pressure30.12 inHg
Wind15.5 mph SE
Humidity75%
Visibility—
Dew point68°
Sun, 1677° / 66°0
77 °
Greenlawn, Sunday, 16 August
Overcast. High 77°, low 66°.
Pressure30.09 inHg
Wind10.5 mph E
Humidity83%
Visibility—
Dew point69°
Mon, 1781° / 69°0.4
81 °
Greenlawn, Monday, 17 August
Rain. High 81°, low 69°.
Pressure30.03 inHg
Wind6 mph E
Humidity76%
Visibility—
Dew point70°
Tue, 1885° / 68°0.01
85 °
Greenlawn, Tuesday, 18 August
Light rain. High 85°, low 68°.
Pressure30.00 inHg
Wind6 mph SE
Humidity81%
Visibility—
Dew point72°
Wed, 1983° / 68°0
83 °
Greenlawn, Wednesday, 19 August
Overcast. High 83°, low 68°.
Pressure29.94 inHg
Wind11.1 mph NE
Humidity73%
Visibility—
Dew point71°
Thu, 2076° / 58°0
76 °
Greenlawn, Thursday, 20 August
Partly cloudy. High 76°, low 58°.
Pressure30.03 inHg
Wind15.2 mph NE
Humidity53%
Visibility—
Dew point54°
Fri, 2174° / 54°0
74 °
Greenlawn, Friday, 21 August
Overcast. High 74°, low 54°.
Pressure30.03 inHg
Wind12.4 mph E
Humidity52%
Visibility—
Dew point53°
Sat, 2283° / 62°0.09
83 °
Greenlawn, Saturday, 22 August
Light rain. High 83°, low 62°.
Pressure29.83 inHg
Wind12.1 mph SE
Humidity69%
Visibility—
Dew point67°
Sun, 2391° / 67°0
91 °
Greenlawn, Sunday, 23 August
Mostly clear. High 91°, low 67°.
Pressure29.94 inHg
Wind5.8 mph SW
Humidity54%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2485° / 68°0.06
85 °
Greenlawn, Monday, 24 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.06 in
Chance of precipitation15%
Record high100° (2023)
Record low56° (1966)
Tue, 2585° / 69°0.1
85 °
Greenlawn, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.1 in
Chance of precipitation23%
Record high99° (2003)
Record low57° (2015)
Wed, 2685° / 69°0.15
85 °
Greenlawn, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.15 in
Chance of precipitation25%
Record high100° (2003)
Record low55° (2025)
Thu, 2785° / 69°0.08
85 °
Greenlawn, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.08 in
Chance of precipitation30%
Record high97° (1990)
Record low55° (2025)
Fri, 2885° / 68°0.11
85 °
Greenlawn, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.11 in
Chance of precipitation25%
Record high98° (2000)
Record low52° (1986)
Sat, 2985° / 68°0.04
85 °
Greenlawn, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.04 in
Chance of precipitation18%
Record high99° (1984)
Record low51° (1986)
Sun, 3084° / 67°0.1
84 °
Greenlawn, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.1 in
Chance of precipitation32%
Record high98° (2013)
Record low55° (2009)
Mon, 3183° / 67°0.11
83 °
Greenlawn, Monday, 31 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.11 in
Chance of precipitation28%
Record high97° (2013)
Record low55° (1967)
Tue, 0183° / 67°0.13
83 °
Greenlawn, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.13 in
Chance of precipitation27%
Record high98° (2011)
Record low52° (1967)
Wed, 0283° / 67°0.1
83 °
Greenlawn, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.1 in
Chance of precipitation28%
Record high95° (2011)
Record low52° (1974)
Thu, 0383° / 66°0.09
83 °
Greenlawn, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.09 in
Chance of precipitation22%
Record high94° (1960)
Record low49° (1974)
Fri, 0482° / 65°0.07
82 °
Greenlawn, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation18%
Record high95° (1990)
Record low46° (1974)
Sat, 0582° / 65°0.04
82 °
Greenlawn, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.04 in
Chance of precipitation23%
Record high97° (1998)
Record low51° (1974)
Sun, 0682° / 65°0.05
82 °
Greenlawn, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.05 in
Chance of precipitation25%
Record high97° (1990)
Record low51° (1974)
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 Greenlawn, 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 Greenlawn, 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.