As of 19:27 CDT

Weather in Rondout, IL

77°Current weather

Rondout, Saturday, 8 August, 19:27

Clear. Feels like 77°. High 82°, low 68°.

Pressure29.97 inHg
Wind4.8 mph W
Humidity64%
Visibility6.2 mi
Dew point64°

Monthly outlook for Rondout, IL: average high 77.1°, average low 64.9°. That is 0.4° below the climate normal for August. Precipitation is expected on 7 days (about 2.6 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 9 August (83.5°), the coolest 23 August (56.5°).

77.1°/64.9°
Average high / low
−0.4°
Below normal
7 / 6
Wet days / normal
2.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August78.9°78.1°+0.4°
18 August – 27 August74.2°77.8°-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 (7 mi).

Sun, 0984° / 65°1.1Heavy rain
84 °Heavy rain

Rondout, Sunday, 9 August

Heavy rain. High 84°, low 65°.

Pressure29.88 inHg
Wind9 mph SE
Humidity91%
Visibility6.2 mi
Dew point64°
Mon, 1081° / 71°0.31Heavy rain
81 °Heavy rain

Rondout, Monday, 10 August

Heavy rain. High 81°, low 71°.

Pressure29.88 inHg
Wind3.8 mph S
Humidity89%
Visibility6.2 mi
Dew point69°
Tue, 1183° / 69°0.59Heavy rain
83 °Heavy rain

Rondout, Tuesday, 11 August

Heavy rain. High 83°, low 69°.

Pressure29.77 inHg
Wind3.6 mph N
Humidity98%
Visibility0.4 mi
Dew point73°
Wed, 1283° / 67°0Overcast
83 °Overcast

Rondout, Wednesday, 12 August

Overcast. High 83°, low 67°.

Pressure29.85 inHg
Wind1.6 mph S
Humidity66%
Visibility6.2 mi
Dew point65°
Thu, 1371° / 63°0.09Light rain
71 °Light rain

Rondout, Thursday, 13 August

Light rain. High 71°, low 63°.

Pressure29.97 inHg
Wind12.5 mph NE
Humidity72%
Visibility
Dew point60°
Fri, 1472° / 61°0Clear
72 °Clear

Rondout, Friday, 14 August

Clear. High 72°, low 61°.

Pressure30.18 inHg
Wind9.6 mph NE
Humidity52%
Visibility
Dew point52°
Sat, 1575° / 59°0Overcast
75 °Overcast

Rondout, Saturday, 15 August

Overcast. High 75°, low 59°.

Pressure30.30 inHg
Wind5.5 mph SW
Humidity45%
Visibility
Dew point50°
Sun, 1679° / 62°0Partly cloudy
79 °Partly cloudy

Rondout, Sunday, 16 August

Partly cloudy. High 79°, low 62°.

Pressure30.18 inHg
Wind9.3 mph SW
Humidity47%
Visibility
Dew point54°
Mon, 1779° / 69°0.03Light rain
79 °Light rain

Rondout, Monday, 17 August

Light rain. High 79°, low 69°.

Pressure30.00 inHg
Wind7.2 mph S
Humidity87%
Visibility
Dew point66°
Tue, 1878° / 69°0Partly cloudy
78 °Partly cloudy

Rondout, Tuesday, 18 August

Partly cloudy. High 78°, low 69°.

Pressure30.03 inHg
Wind8.5 mph NE
Humidity65%
Visibility
Dew point64°
Wed, 1981° / 68°0.35Rain
81 °Rain

Rondout, Wednesday, 19 August

Rain. High 81°, low 68°.

Pressure29.91 inHg
Wind6.2 mph NW
Humidity59%
Visibility
Dew point64°
Thu, 2075° / 67°0.02Light rain
75 °Light rain

Rondout, Thursday, 20 August

Light rain. High 75°, low 67°.

Pressure29.91 inHg
Wind10.6 mph NE
Humidity73%
Visibility
Dew point64°
Fri, 2175° / 64°0Overcast
75 °Overcast

Rondout, Friday, 21 August

Overcast. High 75°, low 64°.

Pressure29.97 inHg
Wind9.3 mph NE
Humidity64%
Visibility
Dew point60°
Sat, 2272° / 60°0.11Light rain
72 °Light rain

Rondout, Saturday, 22 August

Light rain. High 72°, low 60°.

Pressure29.97 inHg
Wind17.7 mph N
Humidity85%
Visibility
Dew point59°
Sun, 2364° / 56°0Clear
64 °Clear

Rondout, Sunday, 23 August

Clear. High 64°, low 56°.

Pressure30.27 inHg
Wind15.2 mph NE
Humidity54%
Visibility
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 68°0.11Climate normal
78 °Climate normal

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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

Rondout, 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 Rondout, 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 Rondout, 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.