Monthly outlook for Miller City, IL: average high 101.6°, average low 75.6°. That is 8.3° above the climate normal for August. Precipitation is expected on 7 days (about 1.0 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 20 August (112.9°), the coolest 9 August (68.3°).
101.6°/75.6°
Average high / low
+8.3°
Above normal
7 / 4
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
97.2°
86.6°
+5.9°
19 August – 28 August
108.8°
87°
+12.1°
29 August – 7 September
at normal
84.8°
—
August records over 66 years
104°16 August 2007All-time high
53.4°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Scott City (13 mi).
Mon, 1097° / 73°0
97 °
Miller City, Monday, 10 August
Clear. High 97°, low 73°.
Pressure30.00 inHg
Wind13.4 mph SW
Humidity44%
Visibility6.2 mi
Dew point69°
Tue, 11100° / 76°0
100 °
Miller City, Tuesday, 11 August
Partly cloudy. High 100°, low 76°.
Pressure29.94 inHg
Wind14.9 mph SW
Humidity41%
Visibility6.2 mi
Dew point68°
Wed, 12102° / 76°0.39
102 °
Miller City, Wednesday, 12 August
Rain. High 102°, low 76°.
Pressure29.85 inHg
Wind12.4 mph SW
Humidity40%
Visibility6.2 mi
Dew point68°
Thu, 1396° / 72°0.09
96 °
Miller City, Thursday, 13 August
Light rain. High 96°, low 72°.
Pressure29.88 inHg
Wind7.8 mph S
Humidity46%
Visibility—
Dew point68°
Fri, 1494° / 75°0
94 °
Miller City, Friday, 14 August
Overcast. High 94°, low 75°.
Pressure29.97 inHg
Wind12.6 mph E
Humidity49%
Visibility—
Dew point69°
Sat, 1599° / 69°0.07
99 °
Miller City, Saturday, 15 August
Light rain. High 99°, low 69°.
Pressure30.09 inHg
Wind10.5 mph E
Humidity51%
Visibility—
Dew point68°
Sun, 16102° / 75°0.07
102 °
Miller City, Sunday, 16 August
Light rain. High 102°, low 75°.
Pressure30.00 inHg
Wind24.8 mph W
Humidity39%
Visibility—
Dew point65°
Mon, 1795° / 74°0.16
95 °
Miller City, Monday, 17 August
Rain. High 95°, low 74°.
Pressure30.03 inHg
Wind12.9 mph E
Humidity51%
Visibility—
Dew point69°
Tue, 1897° / 73°0.14
97 °
Miller City, Tuesday, 18 August
Light rain. High 97°, low 73°.
Pressure29.97 inHg
Wind8.5 mph SE
Humidity50%
Visibility—
Dew point69°
Wed, 19107° / 77°0
107 °
Miller City, Wednesday, 19 August
Overcast. High 107°, low 77°.
Pressure29.91 inHg
Wind12.6 mph SE
Humidity31%
Visibility—
Dew point64°
Thu, 20113° / 83°0
113 °
Miller City, Thursday, 20 August
Overcast. High 113°, low 83°.
Pressure29.88 inHg
Wind10.9 mph SW
Humidity22%
Visibility—
Dew point58°
Fri, 21105° / 82°0
105 °
Miller City, Friday, 21 August
Light rain. High 105°, low 82°.
Pressure29.88 inHg
Wind12.2 mph SW
Humidity40%
Visibility—
Dew point63°
Sat, 22112° / 79°0
112 °
Miller City, Saturday, 22 August
Clear. High 112°, low 79°.
Pressure29.88 inHg
Wind7.9 mph SW
Humidity24%
Visibility—
Dew point59°
Sun, 23110° / 78°0
110 °
Miller City, Sunday, 23 August
Light rain. High 110°, low 78°.
Pressure29.88 inHg
Wind11.6 mph W
Humidity25%
Visibility—
Dew point61°
Mon, 24106° / 80°0.06
106 °
Miller City, Monday, 24 August
Light rain. High 106°, low 80°.
Pressure29.91 inHg
Wind10.6 mph E
Humidity29%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 70°0.04
87 °
Miller City, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low70°
Average precipitation0.04 in
Chance of precipitation18%
Record high100° (2023)
Record low59° (2015)
Wed, 2688° / 71°0.06
88 °
Miller City, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high88°
Average low71°
Average precipitation0.06 in
Chance of precipitation20%
Record high100° (1983)
Record low56° (2025)
Thu, 2787° / 71°0.1
87 °
Miller City, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low71°
Average precipitation0.1 in
Chance of precipitation25%
Record high97° (2024)
Record low58° (2025)
Fri, 2887° / 70°0.09
87 °
Miller City, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low70°
Average precipitation0.09 in
Chance of precipitation25%
Record high97° (1983)
Record low56° (1967)
Sat, 2986° / 70°0.11
86 °
Miller City, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.11 in
Chance of precipitation33%
Record high100° (2000)
Record low53° (1986)
Sun, 3086° / 69°0.11
86 °
Miller City, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.11 in
Chance of precipitation22%
Record high96° (1984)
Record low55° (1986)
Mon, 3186° / 69°0.06
86 °
Miller City, Monday, 31 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.06 in
Chance of precipitation35%
Record high96° (2011)
Record low58° (2009)
Tue, 0185° / 69°0.08
85 °
Miller City, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.08 in
Chance of precipitation28%
Record high97° (2011)
Record low55° (1967)
Wed, 0285° / 69°0.13
85 °
Miller City, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.13 in
Chance of precipitation25%
Record high96° (2011)
Record low57° (1965)
Thu, 0384° / 69°0.09
84 °
Miller City, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.09 in
Chance of precipitation30%
Record high99° (2011)
Record low56° (1974)
Fri, 0484° / 68°0.09
84 °
Miller City, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.09 in
Chance of precipitation27%
Record high97° (1999)
Record low54° (1974)
Sat, 0583° / 67°0.11
83 °
Miller City, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.11 in
Chance of precipitation27%
Record high97° (1999)
Record low54° (1997)
Sun, 0684° / 67°0.03
84 °
Miller City, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.03 in
Chance of precipitation18%
Record high96° (1990)
Record low54° (1988)
Mon, 0784° / 67°0.05
84 °
Miller City, Monday, 7 September
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.05 in
Chance of precipitation20%
Record high98° (1990)
Record low51° (1988)
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 Miller City, IL 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 Miller City, IL 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.