As of 05:13 CDT

Weather in Grigg, IL

58°Current weather

Grigg, Thursday, 8 October, 05:13

Clear. Feels like 58°. High 85°, low 56°.

Pressure30.03 inHg
Wind0 mph N
Humidity100%
Visibility6.2 mi
Dew point56°

Monthly outlook for Grigg, IL: average high 83°, average low 60.7°. That is 8.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 12 October (93.1°), the coolest 9 October (54.7°).

83°/60.7°
Average high / low
+8.1°
Above normal
2 / 4
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October84.1°69.7°+8°
18 October – 27 October81.2°65.2°+8.9°
28 October – 6 Novemberat normal61.2°—

October records over 66 years

93.6°1 October 2019All-time high
28.9°31 October 2023All-time low

Climate normals and records are computed from the nearest reference point — Red Bud (5 mi).

Fri, 0989° / 55°0Clear
89 °Clear

Grigg, Friday, 9 October

Clear. High 89°, low 55°.

Pressure30.12 inHg
Wind8.6 mph S
Humidity23%
Visibility6.2 mi
Dew point43°
Sat, 1084° / 61°0.02Light rain
84 °Light rain

Grigg, Saturday, 10 October

Light rain. High 84°, low 61°.

Pressure30.09 inHg
Wind3.4 mph SE
Humidity42%
Visibility6.2 mi
Dew point55°
Sun, 1179° / 61°0.04Light rain
79 °Light rain

Grigg, Sunday, 11 October

Light rain. High 79°, low 61°.

Pressure29.94 inHg
Wind8.1 mph N
Humidity51%
Visibility6.2 mi
Dew point56°
Mon, 1293° / 58°0Clear
93 °Clear

Grigg, Monday, 12 October

Clear. High 93°, low 58°.

Pressure29.91 inHg
Wind9.3 mph S
Humidity26%
Visibility—
Dew point47°
Tue, 1391° / 70°0Clear
91 °Clear

Grigg, Tuesday, 13 October

Clear. High 91°, low 70°.

Pressure29.88 inHg
Wind9.5 mph N
Humidity36%
Visibility—
Dew point58°
Wed, 1483° / 57°0Clear
83 °Clear

Grigg, Wednesday, 14 October

Clear. High 83°, low 57°.

Pressure30.00 inHg
Wind12.3 mph S
Humidity39%
Visibility—
Dew point49°
Thu, 1593° / 69°0Clear
93 °Clear

Grigg, Thursday, 15 October

Clear. High 93°, low 69°.

Pressure29.91 inHg
Wind20.6 mph S
Humidity34%
Visibility—
Dew point57°
Fri, 1681° / 63°0.23Light rain
81 °Light rain

Grigg, Friday, 16 October

Light rain. High 81°, low 63°.

Pressure30.09 inHg
Wind15.8 mph S
Humidity56%
Visibility—
Dew point63°
Sat, 1764° / 58°0.07Light rain
64 °Light rain

Grigg, Saturday, 17 October

Light rain. High 64°, low 58°.

Pressure30.33 inHg
Wind10.6 mph N
Humidity57%
Visibility—
Dew point45°
Sun, 1876° / 56°0Overcast
76 °Overcast

Grigg, Sunday, 18 October

Overcast. High 76°, low 56°.

Pressure30.21 inHg
Wind7.9 mph NE
Humidity44%
Visibility—
Dew point46°
Mon, 1984° / 61°0Overcast
84 °Overcast

Grigg, Monday, 19 October

Overcast. High 84°, low 61°.

Pressure30.09 inHg
Wind9.2 mph S
Humidity39%
Visibility—
Dew point54°
Tue, 2079° / 64°0Overcast
79 °Overcast

Grigg, Tuesday, 20 October

Overcast. High 79°, low 64°.

Pressure30.09 inHg
Wind7.7 mph NW
Humidity47%
Visibility—
Dew point54°
Wed, 2177° / 55°0Clear
77 °Clear

Grigg, Wednesday, 21 October

Clear. High 77°, low 55°.

Pressure29.97 inHg
Wind6.6 mph N
Humidity41%
Visibility—
Dew point47°
Thu, 2285° / 57°0Partly cloudy
85 °Partly cloudy

Grigg, Thursday, 22 October

Partly cloudy. High 85°, low 57°.

Pressure29.71 inHg
Wind15.6 mph SW
Humidity37%
Visibility—
Dew point51°
Fri, 2387° / 69°0Overcast
87 °Overcast

Grigg, Friday, 23 October

Overcast. High 87°, low 69°.

Pressure29.85 inHg
Wind15.4 mph S
Humidity44%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2464° / 50°0.1Climate normal
64 °Climate normal

Grigg, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high64°
Average low50°
Average precipitation0.1 in
Chance of precipitation25%
Record high80° (2012)
Record low29° (1981)
Sun, 2564° / 49°0.13Climate normal
64 °Climate normal

Grigg, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high64°
Average low49°
Average precipitation0.13 in
Chance of precipitation30%
Record high81° (1963)
Record low33° (2013)
Mon, 2663° / 48°0.17Climate normal
63 °Climate normal

Grigg, Monday, 26 October

Climate normal for this date — 60-year average.

Average high63°
Average low48°
Average precipitation0.17 in
Chance of precipitation37%
Record high82° (1963)
Record low31° (1962)
Tue, 2763° / 48°0.11Climate normal
63 °Climate normal

Grigg, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high63°
Average low48°
Average precipitation0.11 in
Chance of precipitation25%
Record high82° (2023)
Record low35° (2001)
Wed, 2863° / 47°0.06Climate normal
63 °Climate normal

Grigg, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high63°
Average low47°
Average precipitation0.06 in
Chance of precipitation25%
Record high80° (1999)
Record low32° (1976)
Thu, 2962° / 47°0.12Climate normal
62 °Climate normal

Grigg, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high62°
Average low47°
Average precipitation0.12 in
Chance of precipitation30%
Record high81° (2004)
Record low31° (2017)
Fri, 3064° / 48°0.12Climate normal
64 °Climate normal

Grigg, Friday, 30 October

Climate normal for this date — 60-year average.

Average high64°
Average low48°
Average precipitation0.12 in
Chance of precipitation32%
Record high80° (1971)
Record low31° (1980)
Sat, 3164° / 49°0.17Climate normal
64 °Climate normal

Grigg, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high64°
Average low49°
Average precipitation0.17 in
Chance of precipitation40%
Record high80° (1968)
Record low29° (2023)
Sun, 0162° / 48°0.15Climate normal
62 °Climate normal

Grigg, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high62°
Average low48°
Average precipitation0.15 in
Chance of precipitation32%
Record high81° (2016)
Record low27° (2023)
Mon, 0261° / 46°0.09Climate normal
61 °Climate normal

Grigg, Monday, 2 November

Climate normal for this date — 60-year average.

Average high61°
Average low46°
Average precipitation0.09 in
Chance of precipitation33%
Record high80° (2016)
Record low28° (1966)
Tue, 0360° / 45°0.09Climate normal
60 °Climate normal

Grigg, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high60°
Average low45°
Average precipitation0.09 in
Chance of precipitation32%
Record high78° (1987)
Record low23° (1991)
Wed, 0459° / 46°0.13Climate normal
59 °Climate normal

Grigg, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high59°
Average low46°
Average precipitation0.13 in
Chance of precipitation27%
Record high78° (2003)
Record low21° (1991)
Thu, 0559° / 44°0.15Climate normal
59 °Climate normal

Grigg, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.15 in
Chance of precipitation33%
Record high78° (1978)
Record low25° (1991)
Fri, 0658° / 43°0.1Climate normal
58 °Climate normal

Grigg, Friday, 6 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.1 in
Chance of precipitation33%
Record high78° (2023)
Record low29° (1982)

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 Grigg, 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 Grigg, 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.