As of 13:34 CDT

Weather in Savanna, IL

57°

Savanna, Friday, 30 October, 13:34

Overcast. Feels like 55°. High 57°, low 44°.

Pressure30.33 inHg

Wind6.9 mph E

Humidity62%

Visibility6.2 mi

Dew point44°

See detailed hourly forecast

Monthly outlook for Savanna, IL: average high 54.7°, average low 45.6°. That is 2.1° above the climate normal for October. Precipitation is expected on 8 days (about 3.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 31 October (67.4°), the coolest 11 November (33.1°).

54.7°/45.6°

Average high / low

+2.1°

Above normal

8 / 4

Wet days / normal

3.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	58.8°	52.9°	+3.3°
9 November – 18 November	48°	47.3°	+0.4°
19 November – 28 November	at normal	42.7°	—

October records over 66 years

87.4°3 October 2025All-time high

17.6°30 October 1980All-time low

Climate normals and records are computed from the nearest reference point — Goose Lake (15 mi).

Sat, 3167° / 51°

0.07

67 °

Savanna, Saturday, 31 October

Light rain. High 67°, low 51°.

Pressure30.30 inHg

Wind7.1 mph SE

Humidity58%

Visibility6.2 mi

Dew point48°

Sun, 0164° / 54°

64 °

Savanna, Sunday, 1 November

Overcast. High 64°, low 54°.

Pressure30.30 inHg

Wind6.2 mph S

Humidity66%

Visibility6.2 mi

Dew point53°

Mon, 0264° / 54°

0.09

64 °

Savanna, Monday, 2 November

Light rain. High 64°, low 54°.

Pressure30.03 inHg

Wind10.2 mph SE

Humidity77%

Visibility6.2 mi

Dew point54°

Tue, 0367° / 61°

1.31

67 °

Savanna, Tuesday, 3 November

Heavy rain. High 67°, low 61°.

Pressure29.80 inHg

Wind13.7 mph S

Humidity91%

Visibility4.4 mi

Dew point63°

Wed, 0462° / 55°

0.32

62 °

Savanna, Wednesday, 4 November

Rain. High 62°, low 55°.

Pressure29.68 inHg

Wind13.2 mph N

Humidity71%

Visibility—

Dew point52°

Thu, 0558° / 51°

0.19

58 °

Savanna, Thursday, 5 November

Rain. High 58°, low 51°.

Pressure29.80 inHg

Wind12.6 mph N

Humidity72%

Visibility—

Dew point48°

Fri, 0652° / 47°

52 °

Savanna, Friday, 6 November

Overcast. High 52°, low 47°.

Pressure29.97 inHg

Wind11.3 mph N

Humidity72%

Visibility—

Dew point41°

Sat, 0749° / 40°

49 °

Savanna, Saturday, 7 November

Partly cloudy. High 49°, low 40°.

Pressure30.18 inHg

Wind10.2 mph NE

Humidity56%

Visibility—

Dew point33°

Sun, 0847° / 36°

47 °

Savanna, Sunday, 8 November

Overcast. High 47°, low 36°.

Pressure30.36 inHg

Wind11.7 mph NE

Humidity61%

Visibility—

Dew point32°

Mon, 0946° / 41°

0.01

46 °

Savanna, Monday, 9 November

Light rain. High 46°, low 41°.

Pressure30.18 inHg

Wind10.7 mph NE

Humidity69%

Visibility—

Dew point36°

Tue, 1046° / 41°

0.02

46 °

Savanna, Tuesday, 10 November

Light rain. High 46°, low 41°.

Pressure30.00 inHg

Wind14.5 mph NE

Humidity71%

Visibility—

Dew point35°

Wed, 1148° / 33°

48 °

Savanna, Wednesday, 11 November

Clear. High 48°, low 33°.

Pressure30.06 inHg

Wind7.6 mph N

Humidity58%

Visibility—

Dew point31°

Thu, 1250° / 35°

50 °

Savanna, Thursday, 12 November

Clear. High 50°, low 35°.

Pressure29.88 inHg

Wind8.7 mph S

Humidity60%

Visibility—

Dew point33°

Fri, 1348° / 41°

0.49

48 °

Savanna, Friday, 13 November

Rain. High 48°, low 41°.

Pressure29.62 inHg

Wind17.5 mph SE

Humidity92%

Visibility—

Dew point39°

Sat, 1450° / 46°

0.42

50 °

Savanna, Saturday, 14 November

Rain. High 50°, low 46°.

Pressure29.59 inHg

Wind14.3 mph N

Humidity86%

Visibility—

Dew point44°

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

Sun, 1547° / 33°

0.06

47 °

Savanna, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.06 in

Chance of precipitation25%

Record high68° (2025)

Record low15° (1995)

Mon, 1647° / 32°

0.06

47 °

Savanna, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.06 in

Chance of precipitation27%

Record high64° (1971)

Record low13° (1997)

Tue, 1747° / 33°

0.13

47 °

Savanna, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.13 in

Chance of precipitation22%

Record high71° (2016)

Record low10° (1997)

Wed, 1847° / 33°

0.07

47 °

Savanna, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.07 in

Chance of precipitation30%

Record high69° (1999)

Record low10° (2014)

Thu, 1947° / 32°

0.06

47 °

Savanna, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.06 in

Chance of precipitation25%

Record high65° (2020)

Record low10° (1986)

Fri, 2045° / 31°

0.1

45 °

Savanna, Friday, 20 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.1 in

Chance of precipitation35%

Record high64° (2003)

Record low14° (2022)

Sat, 2144° / 29°

0.09

44 °

Savanna, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high44°

Average low29°

Average precipitation0.09 in

Chance of precipitation22%

Record high66° (1990)

Record low7° (1964)

Sun, 2244° / 29°

0.04

44 °

Savanna, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high44°

Average low29°

Average precipitation0.04 in

Chance of precipitation17%

Record high65° (2010)

Record low-1° (2015)

Mon, 2344° / 30°

0.1

44 °

Savanna, Monday, 23 November

Climate normal for this date — 60-year average.

Average high44°

Average low30°

Average precipitation0.1 in

Chance of precipitation30%

Record high64° (1966)

Record low10° (1970)

Tue, 2442° / 28°

0.07

42 °

Savanna, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high42°

Average low28°

Average precipitation0.07 in

Chance of precipitation22%

Record high61° (2017)

Record low8° (1985)

Wed, 2542° / 29°

0.07

42 °

Savanna, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.07 in

Chance of precipitation25%

Record high57° (2006)

Record low5° (1977)

Thu, 2642° / 28°

0.1

42 °

Savanna, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high42°

Average low28°

Average precipitation0.1 in

Chance of precipitation37%

Record high64° (1990)

Record low-7° (1977)

Fri, 2740° / 28°

0.14

40 °

Savanna, Friday, 27 November

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.14 in

Chance of precipitation50%

Record high64° (1990)

Record low10° (1993)

Sat, 2838° / 25°

0.09

38 °

Savanna, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high38°

Average low25°

Average precipitation0.09 in

Chance of precipitation22%

Record high64° (2006)

Record low3° (2018)

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 Savanna, 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 Savanna, 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.