As of 11:08 CDT

Weather in Savanna, IL

64°

Savanna, Friday, 23 October, 11:08

Fog. Feels like 63°. High 71°, low 49°.

Pressure30.30 inHg

Wind4.6 mph S

Humidity63%

Visibility3.0 mi

Dew point51°

See detailed hourly forecast

Monthly outlook for Savanna, IL: average high 63.9°, average low 50.4°. That is 5.2° above the climate normal for October. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 24 October (71.5°), the coolest 30 October (39.7°).

63.9°/50.4°

Average high / low

+5.2°

Above normal

5 / 4

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
23 October – 1 November	63.3°	56.1°	+4°
2 November – 11 November	64.8°	50.9°	+7.7°
12 November – 21 November	at normal	46.2°	—

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, 2471° / 49°

71 °

Savanna, Saturday, 24 October

Overcast. High 71°, low 49°.

Pressure30.33 inHg

Wind8.4 mph S

Humidity58%

Visibility6.2 mi

Dew point50°

Sun, 2571° / 49°

71 °

Savanna, Sunday, 25 October

Overcast. High 71°, low 49°.

Pressure30.36 inHg

Wind4 mph S

Humidity60%

Visibility6.2 mi

Dew point52°

Mon, 2662° / 52°

62 °

Savanna, Monday, 26 October

Overcast. High 62°, low 52°.

Pressure30.39 inHg

Wind7.1 mph NE

Humidity71%

Visibility6.2 mi

Dew point51°

Tue, 2763° / 49°

0.04

63 °

Savanna, Tuesday, 27 October

Light rain. High 63°, low 49°.

Pressure30.24 inHg

Wind8.7 mph SE

Humidity72%

Visibility—

Dew point49°

Wed, 2869° / 55°

0.02

69 °

Savanna, Wednesday, 28 October

Light rain. High 69°, low 55°.

Pressure30.00 inHg

Wind15.6 mph S

Humidity58%

Visibility—

Dew point51°

Thu, 2960° / 47°

0.11

60 °

Savanna, Thursday, 29 October

Light rain. High 60°, low 47°.

Pressure30.15 inHg

Wind14.2 mph NW

Humidity67%

Visibility—

Dew point43°

Fri, 3050° / 40°

50 °

Savanna, Friday, 30 October

Overcast. High 50°, low 40°.

Pressure30.30 inHg

Wind10.8 mph NE

Humidity46%

Visibility—

Dew point28°

Sat, 3153° / 45°

0.24

53 °

Savanna, Saturday, 31 October

Light rain. High 53°, low 45°.

Pressure30.15 inHg

Wind10.3 mph E

Humidity93%

Visibility—

Dew point47°

Sun, 0162° / 53°

62 °

Savanna, Sunday, 1 November

Overcast. High 62°, low 53°.

Pressure30.12 inHg

Wind5.9 mph S

Humidity78%

Visibility—

Dew point51°

Mon, 0261° / 50°

0.09

61 °

Savanna, Monday, 2 November

Light rain. High 61°, low 50°.

Pressure29.97 inHg

Wind14.1 mph SE

Humidity74%

Visibility—

Dew point50°

Tue, 0360° / 56°

0.18

60 °

Savanna, Tuesday, 3 November

Light rain. High 60°, low 56°.

Pressure29.68 inHg

Wind12.9 mph SE

Humidity96%

Visibility—

Dew point58°

Wed, 0467° / 57°

0.01

67 °

Savanna, Wednesday, 4 November

Light rain. High 67°, low 57°.

Pressure29.71 inHg

Wind7.6 mph W

Humidity72%

Visibility—

Dew point56°

Thu, 0567° / 55°

0.15

67 °

Savanna, Thursday, 5 November

Light rain. High 67°, low 55°.

Pressure29.80 inHg

Wind10.9 mph NW

Humidity76%

Visibility—

Dew point54°

Fri, 0665° / 50°

65 °

Savanna, Friday, 6 November

Partly cloudy. High 65°, low 50°.

Pressure29.85 inHg

Wind13.8 mph SW

Humidity59%

Visibility—

Dew point48°

Sat, 0769° / 50°

69 °

Savanna, Saturday, 7 November

Clear. High 69°, low 50°.

Pressure29.77 inHg

Wind14.8 mph W

Humidity45%

Visibility—

Dew point44°

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

Sun, 0851° / 36°

0.04

51 °

Savanna, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.04 in

Chance of precipitation17%

Record high74° (1999)

Record low12° (1991)

Mon, 0950° / 36°

0.1

50 °

Savanna, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.1 in

Chance of precipitation37%

Record high73° (1999)

Record low17° (1991)

Tue, 1049° / 34°

0.09

49 °

Savanna, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.09 in

Chance of precipitation32%

Record high72° (2022)

Record low14° (2018)

Wed, 1147° / 32°

0.07

47 °

Savanna, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.07 in

Chance of precipitation23%

Record high71° (1964)

Record low13° (2019)

Thu, 1246° / 31°

0.06

46 °

Savanna, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°

Average low31°

Average precipitation0.06 in

Chance of precipitation27%

Record high66° (1964)

Record low2° (2019)

Fri, 1346° / 31°

0.05

46 °

Savanna, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°

Average low31°

Average precipitation0.05 in

Chance of precipitation22%

Record high72° (1999)

Record low6° (1986)

Sat, 1447° / 32°

0.05

47 °

Savanna, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°

Average low32°

Average precipitation0.05 in

Chance of precipitation25%

Record high68° (2025)

Record low14° (1986)

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)

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.