As of 23:56 CDT

Weather in Hollis, IL

70°

Hollis, Saturday, 8 August, 23:56

Mostly clear. Feels like 71°. High 85°, low 70°.

Pressure30.03 inHg

Wind4.5 mph E

Humidity92%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

Monthly outlook for Hollis, IL: average high 83.6°, average low 63.9°. That is 1.1° above the climate normal for August. Precipitation is expected on 6 days (about 0.5 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 10 August (95.7°), the coolest 21 August (50.8°).

83.6°/63.9°

Average high / low

+1.1°

Above normal

6 / 5

Wet days / normal

0.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	84.4°	81.6°	+1.5°
18 August – 27 August	82.2°	81.7°	+0.2°
28 August – 6 September	at normal	80.2°	—

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 (11 mi).

Sun, 0994° / 68°

94 °

Hollis, Sunday, 9 August

Clear. High 94°, low 68°.

Pressure29.91 inHg

Wind15.2 mph S

Humidity58%

Visibility6.2 mi

Dew point73°

Mon, 1096° / 75°

96 °

Hollis, Monday, 10 August

Overcast. High 96°, low 75°.

Pressure29.88 inHg

Wind8.2 mph SW

Humidity51%

Visibility6.2 mi

Dew point69°

Tue, 1195° / 72°

0.05

95 °

Hollis, Tuesday, 11 August

Light rain. High 95°, low 72°.

Pressure29.80 inHg

Wind16.7 mph W

Humidity47%

Visibility6.2 mi

Dew point68°

Wed, 1287° / 72°

0.05

87 °

Hollis, Wednesday, 12 August

Light rain. High 87°, low 72°.

Pressure29.85 inHg

Wind3.6 mph NE

Humidity64%

Visibility6.2 mi

Dew point72°

Thu, 1379° / 64°

0.09

79 °

Hollis, Thursday, 13 August

Light rain. High 79°, low 64°.

Pressure29.97 inHg

Wind12.2 mph NE

Humidity65%

Visibility—

Dew point65°

Fri, 1480° / 62°

80 °

Hollis, Friday, 14 August

Overcast. High 80°, low 62°.

Pressure30.09 inHg

Wind9.9 mph E

Humidity58%

Visibility—

Dew point61°

Sat, 1570° / 61°

0.19

70 °

Hollis, Saturday, 15 August

Light rain. High 70°, low 61°.

Pressure30.24 inHg

Wind12.9 mph SE

Humidity84%

Visibility—

Dew point58°

Sun, 1676° / 62°

0.02

76 °

Hollis, Sunday, 16 August

Light rain. High 76°, low 62°.

Pressure30.12 inHg

Wind8.8 mph E

Humidity75%

Visibility—

Dew point59°

Mon, 1782° / 62°

0.01

82 °

Hollis, Monday, 17 August

Light rain. High 82°, low 62°.

Pressure30.06 inHg

Wind6.3 mph N

Humidity62%

Visibility—

Dew point64°

Tue, 1889° / 65°

89 °

Hollis, Tuesday, 18 August

Overcast. High 89°, low 65°.

Pressure30.00 inHg

Wind7.1 mph S

Humidity50%

Visibility—

Dew point62°

Wed, 1977° / 61°

0.05

77 °

Hollis, Wednesday, 19 August

Light rain. High 77°, low 61°.

Pressure29.94 inHg

Wind14.1 mph N

Humidity72%

Visibility—

Dew point63°

Thu, 2074° / 53°

74 °

Hollis, Thursday, 20 August

Overcast. High 74°, low 53°.

Pressure30.06 inHg

Wind12.7 mph N

Humidity46%

Visibility—

Dew point49°

Fri, 2176° / 51°

76 °

Hollis, Friday, 21 August

Overcast. High 76°, low 51°.

Pressure30.03 inHg

Wind11.9 mph E

Humidity45%

Visibility—

Dew point49°

Sat, 2286° / 59°

0.03

86 °

Hollis, Saturday, 22 August

Light rain. High 86°, low 59°.

Pressure29.85 inHg

Wind14.1 mph S

Humidity58%

Visibility—

Dew point61°

Sun, 2391° / 66°

91 °

Hollis, Sunday, 23 August

Mostly clear. High 91°, low 66°.

Pressure29.91 inHg

Wind11.9 mph NW

Humidity38%

Visibility—

Dew point58°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2482° / 65°

0.1

82 °

Hollis, Monday, 24 August

Climate normal for this date — 60-year average.

Average high82°

Average low65°

Average precipitation0.1 in

Chance of precipitation32%

Record high97° (2023)

Record low53° (1966)

Tue, 2582° / 65°

0.1

82 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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 °

Hollis, 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)

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 Hollis, 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 Hollis, 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.