As of 09:01 CDT

Weather in Barnett, IL

47°Current weather

Barnett, Sunday, 18 October, 09:01

Clear. Feels like 46°. High 64°, low 39°.

Pressure30.50 inHg
Wind3.4 mph N
Humidity81%
Visibility6.2 mi
Dew point41°

Monthly outlook for Barnett, IL: average high 70.6°, average low 50°. That is 4.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 30 October (84.8°), the coolest 2 November (38.6°).

70.6°/50°
Average high / low
+4.4°
Above normal
4 / 5
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October70.9°63.7°+4°
28 October – 6 November70.1°59.8°+5.8°
7 November – 16 Novemberat normal54.8°—

October records over 66 years

91.4°1 October 2019All-time high
28.6°24 October 1981All-time low

Climate normals and records are computed from the nearest reference point — Edwardsville (7 mi).

Mon, 1967° / 41°0Overcast
67 °Overcast

Barnett, Monday, 19 October

Overcast. High 67°, low 41°.

Pressure30.39 inHg
Wind2.5 mph S
Humidity54%
Visibility6.2 mi
Dew point46°
Tue, 2069° / 45°0Clear
69 °Clear

Barnett, Tuesday, 20 October

Clear. High 69°, low 45°.

Pressure30.36 inHg
Wind1.6 mph SE
Humidity54%
Visibility6.2 mi
Dew point49°
Wed, 2169° / 46°0Overcast
69 °Overcast

Barnett, Wednesday, 21 October

Overcast. High 69°, low 46°.

Pressure30.30 inHg
Wind1.8 mph SW
Humidity54%
Visibility6.2 mi
Dew point50°
Thu, 2271° / 49°0Clear
71 °Clear

Barnett, Thursday, 22 October

Clear. High 71°, low 49°.

Pressure30.27 inHg
Wind6.7 mph E
Humidity44%
Visibility—
Dew point44°
Fri, 2369° / 49°0Clear
69 °Clear

Barnett, Friday, 23 October

Clear. High 69°, low 49°.

Pressure30.30 inHg
Wind7.5 mph SE
Humidity51%
Visibility—
Dew point47°
Sat, 2480° / 54°0Overcast
80 °Overcast

Barnett, Saturday, 24 October

Overcast. High 80°, low 54°.

Pressure30.30 inHg
Wind12.7 mph S
Humidity29%
Visibility—
Dew point40°
Sun, 2571° / 55°0Overcast
71 °Overcast

Barnett, Sunday, 25 October

Overcast. High 71°, low 55°.

Pressure30.39 inHg
Wind10.7 mph NE
Humidity56%
Visibility—
Dew point53°
Mon, 2673° / 54°0Overcast
73 °Overcast

Barnett, Monday, 26 October

Overcast. High 73°, low 54°.

Pressure30.27 inHg
Wind8.3 mph S
Humidity34%
Visibility—
Dew point39°
Tue, 2775° / 55°0Overcast
75 °Overcast

Barnett, Tuesday, 27 October

Overcast. High 75°, low 55°.

Pressure30.21 inHg
Wind9.7 mph SE
Humidity31%
Visibility—
Dew point39°
Wed, 2873° / 60°0.31Light rain
73 °Light rain

Barnett, Wednesday, 28 October

Light rain. High 73°, low 60°.

Pressure29.94 inHg
Wind14.4 mph S
Humidity63%
Visibility—
Dew point58°
Thu, 2975° / 62°0.15Light rain
75 °Light rain

Barnett, Thursday, 29 October

Light rain. High 75°, low 62°.

Pressure29.80 inHg
Wind10.9 mph S
Humidity64%
Visibility—
Dew point60°
Fri, 3085° / 61°0.08Light rain
85 °Light rain

Barnett, Friday, 30 October

Light rain. High 85°, low 61°.

Pressure29.68 inHg
Wind20.2 mph S
Humidity43%
Visibility—
Dew point56°
Sat, 3172° / 51°0.05Light rain
72 °Light rain

Barnett, Saturday, 31 October

Light rain. High 72°, low 51°.

Pressure29.83 inHg
Wind19.5 mph W
Humidity32%
Visibility—
Dew point28°
Sun, 0155° / 41°0Clear
55 °Clear

Barnett, Sunday, 1 November

Clear. High 55°, low 41°.

Pressure30.27 inHg
Wind14.1 mph W
Humidity35%
Visibility—
Dew point24°
Mon, 0261° / 39°0Clear
61 °Clear

Barnett, Monday, 2 November

Clear. High 61°, low 39°.

Pressure30.39 inHg
Wind8.3 mph SE
Humidity29%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0358° / 44°0.11Climate normal
58 °Climate normal

Barnett, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high58°
Average low44°
Average precipitation0.11 in
Chance of precipitation30%
Record high78° (1987)
Record low20° (1991)
Wed, 0457° / 45°0.16Climate normal
57 °Climate normal

Barnett, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high57°
Average low45°
Average precipitation0.16 in
Chance of precipitation28%
Record high76° (2022)
Record low20° (1991)
Thu, 0558° / 43°0.16Climate normal
58 °Climate normal

Barnett, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.16 in
Chance of precipitation30%
Record high76° (1978)
Record low24° (1991)
Fri, 0657° / 42°0.09Climate normal
57 °Climate normal

Barnett, Friday, 6 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation33%
Record high77° (2023)
Record low28° (1982)
Sat, 0757° / 42°0.08Climate normal
57 °Climate normal

Barnett, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation22%
Record high74° (1980)
Record low17° (1991)
Sun, 0857° / 42°0.04Climate normal
57 °Climate normal

Barnett, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.04 in
Chance of precipitation17%
Record high80° (2023)
Record low4° (1991)
Mon, 0958° / 43°0.1Climate normal
58 °Climate normal

Barnett, Monday, 9 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.1 in
Chance of precipitation30%
Record high76° (2022)
Record low8° (1991)
Tue, 1056° / 41°0.13Climate normal
56 °Climate normal

Barnett, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.13 in
Chance of precipitation30%
Record high74° (2020)
Record low20° (2018)
Wed, 1154° / 39°0.11Climate normal
54 °Climate normal

Barnett, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (1989)
Record low23° (2019)
Thu, 1252° / 37°0.09Climate normal
52 °Climate normal

Barnett, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.09 in
Chance of precipitation25%
Record high72° (2010)
Record low12° (2019)
Fri, 1353° / 38°0.06Climate normal
53 °Climate normal

Barnett, Friday, 13 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation22%
Record high77° (1999)
Record low11° (1986)
Sat, 1454° / 39°0.1Climate normal
54 °Climate normal

Barnett, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation28%
Record high77° (1971)
Record low16° (1986)
Sun, 1554° / 39°0.13Climate normal
54 °Climate normal

Barnett, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high54°
Average low39°
Average precipitation0.13 in
Chance of precipitation32%
Record high76° (2025)
Record low22° (2019)
Mon, 1653° / 38°0.11Climate normal
53 °Climate normal

Barnett, Monday, 16 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation23%
Record high71° (2001)
Record low24° (1997)

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 Barnett, 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 Barnett, 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.