Monthly outlook for Bloomington, IL: average high 73°, average low 54.1°. That is 5.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 15 October (89.9°), the coolest 18 October (41°).
73°/54.1°
Average high / low
+5.4°
Above normal
4 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
77.4°
64.7°
+7.1°
18 October – 27 October
65.8°
59.9°
+3.3°
28 October – 6 November
at normal
56.2°
—
October records over 66 years
88.3°7 October 2007All-time high
19.9°22 October 1976All-time low
Fri, 0983° / 53°0
83 °
Bloomington, Friday, 9 October
Partly cloudy. High 83°, low 53°.
Pressure30.12 inHg
Wind10.6 mph S
Humidity45%
Visibility6.2 mi
Dew point52°
Sat, 1080° / 60°0
80 °
Bloomington, Saturday, 10 October
Overcast. High 80°, low 60°.
Pressure30.09 inHg
Wind7.1 mph SE
Humidity51%
Visibility6.2 mi
Dew point55°
Sun, 1174° / 58°0
74 °
Bloomington, Sunday, 11 October
Clear. High 74°, low 58°.
Pressure29.94 inHg
Wind4.8 mph NE
Humidity64%
Visibility6.2 mi
Dew point57°
Mon, 1285° / 59°0
85 °
Bloomington, Monday, 12 October
Overcast. High 85°, low 59°.
Pressure29.85 inHg
Wind11.1 mph SW
Humidity46%
Visibility—
Dew point57°
Tue, 1384° / 66°0
84 °
Bloomington, Tuesday, 13 October
Clear. High 84°, low 66°.
Pressure29.85 inHg
Wind11.5 mph NE
Humidity53%
Visibility—
Dew point62°
Wed, 1474° / 57°0.03
74 °
Bloomington, Wednesday, 14 October
Light rain. High 74°, low 57°.
Pressure30.00 inHg
Wind16.1 mph SE
Humidity69%
Visibility—
Dew point50°
Thu, 1590° / 72°0.13
90 °
Bloomington, Thursday, 15 October
Light rain. High 90°, low 72°.
Pressure29.85 inHg
Wind19.6 mph SW
Humidity43%
Visibility—
Dew point62°
Fri, 1670° / 53°1.15
70 °
Bloomington, Friday, 16 October
Heavy rain. High 70°, low 53°.
Pressure30.24 inHg
Wind14.3 mph NW
Humidity68%
Visibility—
Dew point50°
Sat, 1757° / 44°0
57 °
Bloomington, Saturday, 17 October
Partly cloudy. High 57°, low 44°.
Pressure30.59 inHg
Wind14.2 mph NE
Humidity52%
Visibility—
Dew point38°
Sun, 1858° / 41°0
58 °
Bloomington, Sunday, 18 October
Overcast. High 58°, low 41°.
Pressure30.45 inHg
Wind9 mph E
Humidity38%
Visibility—
Dew point29°
Mon, 1969° / 49°0.06
69 °
Bloomington, Monday, 19 October
Light rain. High 69°, low 49°.
Pressure30.18 inHg
Wind15 mph S
Humidity72%
Visibility—
Dew point56°
Tue, 2075° / 59°0
75 °
Bloomington, Tuesday, 20 October
Overcast. High 75°, low 59°.
Pressure30.15 inHg
Wind12.3 mph SW
Humidity57%
Visibility—
Dew point55°
Wed, 2171° / 55°0
71 °
Bloomington, Wednesday, 21 October
Clear. High 71°, low 55°.
Pressure30.09 inHg
Wind7.8 mph W
Humidity34%
Visibility—
Dew point38°
Thu, 2264° / 50°0.15
64 °
Bloomington, Thursday, 22 October
Light rain. High 64°, low 50°.
Pressure29.91 inHg
Wind18 mph W
Humidity88%
Visibility—
Dew point56°
Fri, 2359° / 42°0
59 °
Bloomington, Friday, 23 October
Clear. High 59°, low 42°.
Pressure30.18 inHg
Wind14.2 mph W
Humidity44%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2459° / 46°0.11
59 °
Bloomington, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.11 in
Chance of precipitation32%
Record high79° (1963)
Record low22° (1981)
Sun, 2559° / 44°0.13
59 °
Bloomington, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.13 in
Chance of precipitation23%
Record high77° (1963)
Record low28° (2013)
Mon, 2658° / 43°0.14
58 °
Bloomington, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.14 in
Chance of precipitation30%
Record high80° (1963)
Record low23° (1962)
Tue, 2758° / 43°0.09
58 °
Bloomington, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.09 in
Chance of precipitation28%
Record high75° (1984)
Record low30° (1997)
Wed, 2857° / 42°0.06
57 °
Bloomington, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.06 in
Chance of precipitation23%
Record high75° (1999)
Record low25° (1976)
Thu, 2958° / 42°0.08
58 °
Bloomington, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.08 in
Chance of precipitation25%
Record high78° (2024)
Record low24° (1980)
Fri, 3059° / 44°0.11
59 °
Bloomington, Friday, 30 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.11 in
Chance of precipitation27%
Record high79° (1971)
Record low25° (1988)
Sat, 3158° / 44°0.17
58 °
Bloomington, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.17 in
Chance of precipitation42%
Record high75° (1968)
Record low26° (2019)
Sun, 0157° / 42°0.19
57 °
Bloomington, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.19 in
Chance of precipitation33%
Record high77° (2016)
Record low25° (2023)
Mon, 0256° / 41°0.07
56 °
Bloomington, Monday, 2 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.07 in
Chance of precipitation33%
Record high75° (1961)
Record low24° (1996)
Tue, 0355° / 40°0.09
55 °
Bloomington, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high75° (1987)
Record low17° (1991)
Wed, 0454° / 42°0.09
54 °
Bloomington, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.09 in
Chance of precipitation30%
Record high75° (1978)
Record low16° (1991)
Thu, 0554° / 40°0.13
54 °
Bloomington, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.13 in
Chance of precipitation27%
Record high76° (1978)
Record low18° (1991)
Fri, 0654° / 38°0.08
54 °
Bloomington, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.08 in
Chance of precipitation28%
Record high70° (2020)
Record low25° (1967)
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 Bloomington, 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 Bloomington, 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.