Monthly outlook for Tuscarora, IL: average high 89.1°, average low 69.6°. That is 4.2° above the climate normal for August. Precipitation is expected on 7 days (about 2.2 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 22 August (105.7°), the coolest 15 August (60.9°).
89.1°/69.6°
Average high / low
+4.2°
Above normal
7 / 5
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
84.7°
81.6°
+1.7°
19 August – 28 August
96.6°
81.7°
+8.3°
29 August – 7 September
at normal
80°
—
August records over 66 years
97.7°1 August 1988All-time high
47.1°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Peoria (10 mi).
Mon, 1095° / 76°0
95 °
Tuscarora, Monday, 10 August
Overcast. High 95°, low 76°.
Pressure29.88 inHg
Wind10.4 mph W
Humidity51%
Visibility6.2 mi
Dew point69°
Tue, 1199° / 70°0.05
99 °
Tuscarora, Tuesday, 11 August
Light rain. High 99°, low 70°.
Pressure29.83 inHg
Wind11.7 mph W
Humidity50%
Visibility6.2 mi
Dew point70°
Wed, 1286° / 73°0.53
86 °
Tuscarora, Wednesday, 12 August
Rain. High 86°, low 73°.
Pressure29.83 inHg
Wind2.5 mph E
Humidity90%
Visibility6.2 mi
Dew point73°
Thu, 1382° / 65°0.07
82 °
Tuscarora, Thursday, 13 August
Light rain. High 82°, low 65°.
Pressure29.97 inHg
Wind14.5 mph NE
Humidity56%
Visibility—
Dew point62°
Fri, 1469° / 62°1.05
69 °
Tuscarora, Friday, 14 August
Heavy rain. High 69°, low 62°.
Pressure30.15 inHg
Wind12.5 mph E
Humidity79%
Visibility—
Dew point56°
Sat, 1576° / 61°0.08
76 °
Tuscarora, Saturday, 15 August
Light rain. High 76°, low 61°.
Pressure30.18 inHg
Wind12 mph SE
Humidity72%
Visibility—
Dew point63°
Sun, 1681° / 66°0.02
81 °
Tuscarora, Sunday, 16 August
Light rain. High 81°, low 66°.
Pressure30.06 inHg
Wind7.5 mph SE
Humidity72%
Visibility—
Dew point69°
Mon, 1783° / 67°0
83 °
Tuscarora, Monday, 17 August
Partly cloudy. High 83°, low 67°.
Pressure30.09 inHg
Wind5 mph NE
Humidity60%
Visibility—
Dew point65°
Tue, 1885° / 67°0
85 °
Tuscarora, Tuesday, 18 August
Mostly clear. High 85°, low 67°.
Pressure30.00 inHg
Wind10.7 mph SE
Humidity58%
Visibility—
Dew point65°
Wed, 19101° / 72°0
101 °
Tuscarora, Wednesday, 19 August
Overcast. High 101°, low 72°.
Pressure29.85 inHg
Wind16.1 mph S
Humidity51%
Visibility—
Dew point70°
Thu, 20102° / 77°0
102 °
Tuscarora, Thursday, 20 August
Overcast. High 102°, low 77°.
Pressure29.77 inHg
Wind11.5 mph W
Humidity35%
Visibility—
Dew point64°
Fri, 2191° / 75°0
91 °
Tuscarora, Friday, 21 August
Partly cloudy. High 91°, low 75°.
Pressure29.88 inHg
Wind11.5 mph NE
Humidity59%
Visibility—
Dew point72°
Sat, 22106° / 72°0.17
106 °
Tuscarora, Saturday, 22 August
Rain. High 106°, low 72°.
Pressure29.83 inHg
Wind23.4 mph S
Humidity32%
Visibility—
Dew point63°
Sun, 2397° / 75°0.03
97 °
Tuscarora, Sunday, 23 August
Light rain. High 97°, low 75°.
Pressure29.83 inHg
Wind14.4 mph S
Humidity39%
Visibility—
Dew point65°
Mon, 2483° / 68°0.17
83 °
Tuscarora, Monday, 24 August
Light rain. High 83°, low 68°.
Pressure30.00 inHg
Wind14.1 mph E
Humidity73%
Visibility—
Dew point70°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 65°0.1
82 °
Tuscarora, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.1 in
Chance of precipitation33%
Record high94° (2014)
Record low54° (1966)
Wed, 2682° / 66°0.14
82 °
Tuscarora, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.14 in
Chance of precipitation35%
Record high92° (2003)
Record low53° (1964)
Thu, 2782° / 66°0.09
82 °
Tuscarora, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.09 in
Chance of precipitation23%
Record high94° (2024)
Record low54° (1968)
Fri, 2882° / 65°0.12
82 °
Tuscarora, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.12 in
Chance of precipitation27%
Record high93° (2013)
Record low49° (1986)
Sat, 2982° / 65°0.11
82 °
Tuscarora, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation35%
Record high94° (1984)
Record low47° (1986)
Sun, 3081° / 65°0.06
81 °
Tuscarora, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.06 in
Chance of precipitation28%
Record high96° (2013)
Record low52° (1986)
Mon, 3180° / 64°0.08
80 °
Tuscarora, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation23%
Record high92° (2011)
Record low50° (2009)
Tue, 0180° / 64°0.17
80 °
Tuscarora, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.17 in
Chance of precipitation28%
Record high98° (2011)
Record low48° (1967)
Wed, 0280° / 64°0.06
80 °
Tuscarora, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.06 in
Chance of precipitation22%
Record high95° (2011)
Record low49° (1967)
Thu, 0380° / 64°0.09
80 °
Tuscarora, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation28%
Record high92° (1964)
Record low47° (1974)
Fri, 0479° / 62°0.11
79 °
Tuscarora, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.11 in
Chance of precipitation32%
Record high91° (2007)
Record low44° (1974)
Sat, 0579° / 62°0.04
79 °
Tuscarora, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.04 in
Chance of precipitation17%
Record high92° (1990)
Record low50° (1974)
Sun, 0678° / 62°0.1
78 °
Tuscarora, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.1 in
Chance of precipitation33%
Record high92° (2015)
Record low46° (1962)
Mon, 0779° / 62°0.11
79 °
Tuscarora, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.11 in
Chance of precipitation28%
Record high92° (1960)
Record low49° (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 Tuscarora, 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 Tuscarora, 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.