As of 15:18 CDT

Weather in Leithton, IL

83°Current weather

Leithton, Saturday, 8 August, 15:18

Clear. Feels like 83°. High 83°, low 68°.

Pressure30.00 inHg
Wind3 mph N
Humidity49%
Visibility6.2 mi
Dew point61°

Monthly outlook for Leithton, IL: average high 78.3°, average low 63.7°. That is 0.2° above the climate normal for August. Precipitation is expected on 7 days (about 2.5 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 12 August (84.4°), the coolest 23 August (54.4°).

78.3°/63.7°
Average high / low
+0.2°
Above normal
7 / 6
Wet days / normal
2.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August79.8°78.1°+0.9°
18 August – 27 August75.7°77.8°-1.2°
28 August – 6 Septemberat normal76.4°

August records over 66 years

98.6°24 August 2023All-time high
52.5°22 August 2024All-time low

Climate normals and records are computed from the nearest reference point — Highwood (9 mi).

Sun, 0984° / 65°1.08Heavy rain
84 °Heavy rain

Leithton, Sunday, 9 August

Heavy rain. High 84°, low 65°.

Pressure29.88 inHg
Wind9.6 mph SE
Humidity93%
Visibility6.2 mi
Dew point64°
Mon, 1083° / 71°0.27Heavy rain
83 °Heavy rain

Leithton, Monday, 10 August

Heavy rain. High 83°, low 71°.

Pressure29.88 inHg
Wind4.5 mph S
Humidity87%
Visibility6.2 mi
Dew point70°
Tue, 1184° / 69°0.56Heavy rain
84 °Heavy rain

Leithton, Tuesday, 11 August

Heavy rain. High 84°, low 69°.

Pressure29.77 inHg
Wind3.3 mph W
Humidity94%
Visibility1.4 mi
Dew point73°
Wed, 1284° / 66°0Partly cloudy
84 °Partly cloudy

Leithton, Wednesday, 12 August

Partly cloudy. High 84°, low 66°.

Pressure29.85 inHg
Wind2.2 mph SW
Humidity64%
Visibility6.2 mi
Dew point64°
Thu, 1370° / 61°0.08Light rain
70 °Light rain

Leithton, Thursday, 13 August

Light rain. High 70°, low 61°.

Pressure29.97 inHg
Wind10.5 mph NE
Humidity71%
Visibility
Dew point60°
Fri, 1473° / 58°0Clear
73 °Clear

Leithton, Friday, 14 August

Clear. High 73°, low 58°.

Pressure30.18 inHg
Wind8.4 mph NE
Humidity49%
Visibility
Dew point51°
Sat, 1577° / 57°0Overcast
77 °Overcast

Leithton, Saturday, 15 August

Overcast. High 77°, low 57°.

Pressure30.30 inHg
Wind4.7 mph SW
Humidity44%
Visibility
Dew point49°
Sun, 1679° / 61°0Partly cloudy
79 °Partly cloudy

Leithton, Sunday, 16 August

Partly cloudy. High 79°, low 61°.

Pressure30.18 inHg
Wind10 mph SW
Humidity47%
Visibility
Dew point54°
Mon, 1782° / 68°0.02Light rain
82 °Light rain

Leithton, Monday, 17 August

Light rain. High 82°, low 68°.

Pressure30.00 inHg
Wind7 mph S
Humidity87%
Visibility
Dew point66°
Tue, 1880° / 68°0Partly cloudy
80 °Partly cloudy

Leithton, Tuesday, 18 August

Partly cloudy. High 80°, low 68°.

Pressure30.03 inHg
Wind8 mph NE
Humidity60%
Visibility
Dew point64°
Wed, 1983° / 66°0.34Rain
83 °Rain

Leithton, Wednesday, 19 August

Rain. High 83°, low 66°.

Pressure29.91 inHg
Wind7.8 mph SW
Humidity58%
Visibility
Dew point65°
Thu, 2076° / 66°0.01Light rain
76 °Light rain

Leithton, Thursday, 20 August

Light rain. High 76°, low 66°.

Pressure29.91 inHg
Wind9.2 mph NE
Humidity71%
Visibility
Dew point64°
Fri, 2177° / 63°0Overcast
77 °Overcast

Leithton, Friday, 21 August

Overcast. High 77°, low 63°.

Pressure29.97 inHg
Wind8 mph NE
Humidity60%
Visibility
Dew point60°
Sat, 2272° / 58°0.08Light rain
72 °Light rain

Leithton, Saturday, 22 August

Light rain. High 72°, low 58°.

Pressure30.00 inHg
Wind16.1 mph N
Humidity85%
Visibility
Dew point59°
Sun, 2365° / 54°0Clear
65 °Clear

Leithton, Sunday, 23 August

Clear. High 65°, low 54°.

Pressure30.27 inHg
Wind12.5 mph NE
Humidity50%
Visibility
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 68°0.11Climate normal
78 °Climate normal

Leithton, Monday, 24 August

Climate normal for this date — 60-year average.

Average high78°
Average low68°
Average precipitation0.11 in
Chance of precipitation25%
Record high99° (2023)
Record low58° (2025)
Tue, 2578° / 68°0.07Climate normal
78 °Climate normal

Leithton, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high78°
Average low68°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (2024)
Record low54° (2017)
Wed, 2679° / 68°0.14Climate normal
79 °Climate normal

Leithton, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high79°
Average low68°
Average precipitation0.14 in
Chance of precipitation35%
Record high94° (2024)
Record low54° (2025)
Thu, 2778° / 69°0.1Climate normal
78 °Climate normal

Leithton, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high78°
Average low69°
Average precipitation0.1 in
Chance of precipitation32%
Record high96° (2024)
Record low55° (2025)
Fri, 2878° / 68°0.12Climate normal
78 °Climate normal

Leithton, Friday, 28 August

Climate normal for this date — 60-year average.

Average high78°
Average low68°
Average precipitation0.12 in
Chance of precipitation35%
Record high92° (2021)
Record low54° (1986)
Sat, 2978° / 68°0.13Climate normal
78 °Climate normal

Leithton, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high78°
Average low68°
Average precipitation0.13 in
Chance of precipitation28%
Record high89° (1984)
Record low54° (1965)
Sun, 3077° / 67°0.09Climate normal
77 °Climate normal

Leithton, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high77°
Average low67°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2013)
Record low57° (2023)
Mon, 3176° / 67°0.06Climate normal
76 °Climate normal

Leithton, Monday, 31 August

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.06 in
Chance of precipitation20%
Record high89° (2012)
Record low56° (2025)
Tue, 0176° / 67°0.1Climate normal
76 °Climate normal

Leithton, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.1 in
Chance of precipitation28%
Record high89° (1960)
Record low57° (2017)
Wed, 0277° / 67°0.04Climate normal
77 °Climate normal

Leithton, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high77°
Average low67°
Average precipitation0.04 in
Chance of precipitation25%
Record high87° (2023)
Record low50° (2017)
Thu, 0376° / 66°0.09Climate normal
76 °Climate normal

Leithton, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high76°
Average low66°
Average precipitation0.09 in
Chance of precipitation27%
Record high92° (2023)
Record low54° (1974)
Fri, 0475° / 66°0.08Climate normal
75 °Climate normal

Leithton, Friday, 4 September

Climate normal for this date — 60-year average.

Average high75°
Average low66°
Average precipitation0.08 in
Chance of precipitation30%
Record high91° (2023)
Record low49° (2025)
Sat, 0575° / 65°0.08Climate normal
75 °Climate normal

Leithton, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high75°
Average low65°
Average precipitation0.08 in
Chance of precipitation25%
Record high89° (2023)
Record low55° (2017)
Sun, 0675° / 65°0.09Climate normal
75 °Climate normal

Leithton, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high75°
Average low65°
Average precipitation0.09 in
Chance of precipitation33%
Record high90° (1990)
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 Leithton, 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 Leithton, 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.