Monthly outlook for Grubville, MO: average high 101.7°, average low 74.3°. That is 8.4° above the climate normal for August. Precipitation is expected on 6 days (about 0.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 20 August (114.1°), the coolest 15 August (66.3°).
101.7°/74.3°
Average high / low
+8.4°
Above normal
6 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
96.6°
86.6°
+5.5°
19 August – 28 August
110.1°
86.6°
+13°
29 August – 7 September
at normal
84.2°
—
August records over 66 years
105.3°14 August 2007All-time high
52.3°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Pacific (13 mi).
Mon, 10101° / 76°0
101 °
Grubville, Monday, 10 August
Clear. High 101°, low 76°.
Pressure29.94 inHg
Wind10.4 mph SW
Humidity34%
Visibility6.2 mi
Dew point65°
Tue, 11103° / 72°0
103 °
Grubville, Tuesday, 11 August
Mostly clear. High 103°, low 72°.
Pressure29.88 inHg
Wind10.9 mph SW
Humidity31%
Visibility6.2 mi
Dew point63°
Wed, 12103° / 76°0
103 °
Grubville, Wednesday, 12 August
Overcast. High 103°, low 76°.
Pressure29.83 inHg
Wind9.6 mph W
Humidity36%
Visibility6.2 mi
Dew point66°
Thu, 1397° / 71°0.15
97 °
Grubville, Thursday, 13 August
Light rain. High 97°, low 71°.
Pressure29.88 inHg
Wind12.1 mph E
Humidity44%
Visibility—
Dew point65°
Fri, 1477° / 69°0
77 °
Grubville, Friday, 14 August
Overcast. High 77°, low 69°.
Pressure30.06 inHg
Wind10.8 mph E
Humidity87%
Visibility—
Dew point66°
Sat, 15101° / 66°0.04
101 °
Grubville, Saturday, 15 August
Light rain. High 101°, low 66°.
Pressure30.06 inHg
Wind8.7 mph E
Humidity43%
Visibility—
Dew point63°
Sun, 1696° / 72°0
96 °
Grubville, Sunday, 16 August
Mostly clear. High 96°, low 72°.
Pressure30.03 inHg
Wind8.7 mph W
Humidity49%
Visibility—
Dew point67°
Mon, 1793° / 72°0.11
93 °
Grubville, Monday, 17 August
Light rain. High 93°, low 72°.
Pressure30.03 inHg
Wind5.9 mph E
Humidity58%
Visibility—
Dew point69°
Tue, 18101° / 69°0.04
101 °
Grubville, Tuesday, 18 August
Light rain. High 101°, low 69°.
Pressure29.94 inHg
Wind7.8 mph E
Humidity45%
Visibility—
Dew point67°
Wed, 19112° / 77°0
112 °
Grubville, Wednesday, 19 August
Clear. High 112°, low 77°.
Pressure29.85 inHg
Wind13.5 mph S
Humidity21%
Visibility—
Dew point55°
Thu, 20114° / 85°0
114 °
Grubville, Thursday, 20 August
Clear. High 114°, low 85°.
Pressure29.83 inHg
Wind10.9 mph SW
Humidity16%
Visibility—
Dew point52°
Fri, 21111° / 83°0
111 °
Grubville, Friday, 21 August
Clear. High 111°, low 83°.
Pressure29.83 inHg
Wind10.4 mph W
Humidity17%
Visibility—
Dew point51°
Sat, 22112° / 78°0
112 °
Grubville, Saturday, 22 August
Light rain. High 112°, low 78°.
Pressure29.83 inHg
Wind8.5 mph S
Humidity18%
Visibility—
Dew point53°
Sun, 23109° / 78°0.04
109 °
Grubville, Sunday, 23 August
Light rain. High 109°, low 78°.
Pressure29.85 inHg
Wind9.9 mph SW
Humidity23%
Visibility—
Dew point58°
Mon, 24103° / 74°0.05
103 °
Grubville, Monday, 24 August
Light rain. High 103°, low 74°.
Pressure29.97 inHg
Wind6.4 mph N
Humidity34%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 69°0.07
87 °
Grubville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.07 in
Chance of precipitation22%
Record high100° (2023)
Record low58° (2015)
Wed, 2687° / 69°0.17
87 °
Grubville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.17 in
Chance of precipitation30%
Record high101° (2003)
Record low55° (2025)
Thu, 2787° / 69°0.1
87 °
Grubville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.1 in
Chance of precipitation28%
Record high99° (1983)
Record low54° (2025)
Fri, 2887° / 69°0.07
87 °
Grubville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low69°
Average precipitation0.07 in
Chance of precipitation27%
Record high99° (2000)
Record low55° (1967)
Sat, 2986° / 68°0.08
86 °
Grubville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.08 in
Chance of precipitation33%
Record high99° (1984)
Record low52° (1986)
Sun, 3085° / 68°0.15
85 °
Grubville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.15 in
Chance of precipitation30%
Record high99° (2013)
Record low54° (1986)
Mon, 3185° / 68°0.11
85 °
Grubville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.11 in
Chance of precipitation30%
Record high103° (2013)
Record low56° (1967)
Tue, 0184° / 68°0.11
84 °
Grubville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.11 in
Chance of precipitation35%
Record high100° (2011)
Record low53° (1967)
Wed, 0284° / 67°0.13
84 °
Grubville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.13 in
Chance of precipitation37%
Record high99° (2011)
Record low52° (1974)
Thu, 0384° / 67°0.09
84 °
Grubville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.09 in
Chance of precipitation27%
Record high97° (2011)
Record low50° (1974)
Fri, 0483° / 66°0.11
83 °
Grubville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.11 in
Chance of precipitation25%
Record high97° (1960)
Record low49° (1974)
Sat, 0583° / 66°0.04
83 °
Grubville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.04 in
Chance of precipitation22%
Record high98° (1990)
Record low52° (1974)
Sun, 0683° / 65°0.04
83 °
Grubville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.04 in
Chance of precipitation27%
Record high100° (1990)
Record low52° (2017)
Mon, 0784° / 65°0.08
84 °
Grubville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high84°
Average low65°
Average precipitation0.08 in
Chance of precipitation30%
Record high97° (1960)
Record low51° (2017)
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 Grubville, 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 Grubville, 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.