Monthly outlook for Scottland, IL: average high 86.4°, average low 69.1°. That is 2.2° above the climate normal for August. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 23 August (98.7°), the coolest 14 August (60.3°).
86.4°/69.1°
Average high / low
+2.2°
Above normal
6 / 5
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
82.6°
82.5°
+0.1°
19 August – 28 August
92.7°
82.8°
+5.5°
29 August – 7 September
at normal
81.2°
—
August records over 66 years
100.9°16 August 1988All-time high
45.9°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Dana (6 mi).
Mon, 1095° / 76°0.04
95 °
Scottland, Monday, 10 August
Light rain. High 95°, low 76°.
Pressure29.94 inHg
Wind14.8 mph SW
Humidity63%
Visibility6.2 mi
Dew point74°
Tue, 1191° / 71°0.04
91 °
Scottland, Tuesday, 11 August
Light rain. High 91°, low 71°.
Pressure29.88 inHg
Wind12.8 mph SW
Humidity63%
Visibility6.2 mi
Dew point73°
Wed, 1282° / 69°0.24
82 °
Scottland, Wednesday, 12 August
Light rain. High 82°, low 69°.
Pressure29.80 inHg
Wind4.5 mph SW
Humidity71%
Visibility6.2 mi
Dew point73°
Thu, 1382° / 66°0
82 °
Scottland, Thursday, 13 August
Light rain. High 82°, low 66°.
Pressure29.97 inHg
Wind12.2 mph NE
Humidity56%
Visibility—
Dew point63°
Fri, 1468° / 60°1.1
68 °
Scottland, Friday, 14 August
Rain. High 68°, low 60°.
Pressure30.12 inHg
Wind10.9 mph NE
Humidity88%
Visibility—
Dew point62°
Sat, 1575° / 61°0.08
75 °
Scottland, Saturday, 15 August
Light rain. High 75°, low 61°.
Pressure30.21 inHg
Wind11.3 mph SE
Humidity74%
Visibility—
Dew point61°
Sun, 1681° / 62°0.16
81 °
Scottland, Sunday, 16 August
Light rain. High 81°, low 62°.
Pressure30.09 inHg
Wind7.8 mph SE
Humidity73%
Visibility—
Dew point65°
Mon, 1780° / 67°0
80 °
Scottland, Monday, 17 August
Partly cloudy. High 80°, low 67°.
Pressure30.09 inHg
Wind8.9 mph NE
Humidity65%
Visibility—
Dew point65°
Tue, 1882° / 65°0
82 °
Scottland, Tuesday, 18 August
Clear. High 82°, low 65°.
Pressure30.03 inHg
Wind7.1 mph E
Humidity60%
Visibility—
Dew point64°
Wed, 1986° / 67°0.04
86 °
Scottland, Wednesday, 19 August
Light rain. High 86°, low 67°.
Pressure29.94 inHg
Wind15.9 mph S
Humidity63%
Visibility—
Dew point67°
Thu, 2096° / 73°0
96 °
Scottland, Thursday, 20 August
Partly cloudy. High 96°, low 73°.
Pressure29.83 inHg
Wind11.3 mph SW
Humidity49%
Visibility—
Dew point70°
Fri, 2191° / 74°0
91 °
Scottland, Friday, 21 August
Mostly clear. High 91°, low 74°.
Pressure29.85 inHg
Wind9.1 mph NE
Humidity58%
Visibility—
Dew point72°
Sat, 2296° / 76°0
96 °
Scottland, Saturday, 22 August
Mostly clear. High 96°, low 76°.
Pressure29.88 inHg
Wind8.9 mph S
Humidity58%
Visibility—
Dew point74°
Sun, 2399° / 78°0
99 °
Scottland, Sunday, 23 August
Overcast. High 99°, low 78°.
Pressure29.85 inHg
Wind10.7 mph S
Humidity41%
Visibility—
Dew point67°
Mon, 2488° / 71°0.02
88 °
Scottland, Monday, 24 August
Light rain. High 88°, low 71°.
Pressure30.00 inHg
Wind14.7 mph NE
Humidity59%
Visibility—
Dew point70°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 65°0.07
83 °
Scottland, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.07 in
Chance of precipitation27%
Record high93° (2023)
Record low55° (1984)
Wed, 2683° / 66°0.09
83 °
Scottland, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.09 in
Chance of precipitation38%
Record high93° (2024)
Record low52° (2025)
Thu, 2783° / 67°0.13
83 °
Scottland, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.13 in
Chance of precipitation33%
Record high96° (2024)
Record low51° (2025)
Fri, 2883° / 66°0.16
83 °
Scottland, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.16 in
Chance of precipitation27%
Record high93° (2013)
Record low51° (1986)
Sat, 2983° / 65°0.09
83 °
Scottland, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.09 in
Chance of precipitation30%
Record high94° (2007)
Record low46° (1986)
Sun, 3081° / 65°0.1
81 °
Scottland, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.1 in
Chance of precipitation23%
Record high93° (1995)
Record low49° (1986)
Mon, 3182° / 64°0.06
82 °
Scottland, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.06 in
Chance of precipitation17%
Record high95° (2013)
Record low52° (2009)
Tue, 0182° / 64°0.11
82 °
Scottland, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.11 in
Chance of precipitation22%
Record high100° (2011)
Record low49° (1967)
Wed, 0282° / 64°0.11
82 °
Scottland, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.11 in
Chance of precipitation35%
Record high100° (2011)
Record low50° (1967)
Thu, 0381° / 64°0.11
81 °
Scottland, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation25%
Record high98° (2011)
Record low49° (1974)
Fri, 0481° / 63°0.07
81 °
Scottland, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.07 in
Chance of precipitation18%
Record high95° (2007)
Record low47° (1974)
Sat, 0581° / 63°0.05
81 °
Scottland, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.05 in
Chance of precipitation18%
Record high95° (2007)
Record low49° (1997)
Sun, 0680° / 63°0.06
80 °
Scottland, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.06 in
Chance of precipitation22%
Record high92° (1998)
Record low49° (1988)
Mon, 0780° / 62°0.08
80 °
Scottland, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.08 in
Chance of precipitation28%
Record high92° (1960)
Record low47° (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 Scottland, 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 Scottland, 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.