As of 14:11 CDT

Weather in Riverdale, IL

72°

Riverdale, Friday, 23 October, 14:11

Clear. Feels like 70°. High 72°, low 46°.

Pressure30.27 inHg

Wind4.6 mph S

Humidity43%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Monthly outlook for Riverdale, IL: average high 65.1°, average low 52.8°. That is 5.4° above the climate normal for October. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 23 October (71.6°), the coolest 23 October (46.1°).

65.1°/52.8°

Average high / low

+5.4°

Above normal

6 / 5

Wet days / normal

1.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
23 October – 1 November	64.6°	56.6°	+4.4°
2 November – 11 November	65.9°	52°	+7.7°
12 November – 21 November	at normal	47.1°	—

October records over 66 years

88.5°3 October 2025All-time high

26.2°26 October 1962All-time low

Climate normals and records are computed from the nearest reference point — Calumet Park (2 mi).

Sat, 2469° / 47°

69 °

Riverdale, Saturday, 24 October

Overcast. High 69°, low 47°.

Pressure30.39 inHg

Wind5 mph S

Humidity65%

Visibility6.2 mi

Dew point51°

Sun, 2569° / 48°

69 °

Riverdale, Sunday, 25 October

Overcast. High 69°, low 48°.

Pressure30.42 inHg

Wind4.3 mph S

Humidity61%

Visibility6.2 mi

Dew point52°

Mon, 2662° / 50°

62 °

Riverdale, Monday, 26 October

Overcast. High 62°, low 50°.

Pressure30.36 inHg

Wind5.3 mph NE

Humidity81%

Visibility6.2 mi

Dew point56°

Tue, 2761° / 52°

61 °

Riverdale, Tuesday, 27 October

Overcast. High 61°, low 52°.

Pressure30.30 inHg

Wind4.1 mph E

Humidity76%

Visibility6.2 mi

Dew point52°

Wed, 2868° / 52°

0.02

68 °

Riverdale, Wednesday, 28 October

Light rain. High 68°, low 52°.

Pressure30.09 inHg

Wind10.5 mph S

Humidity59%

Visibility—

Dew point51°

Thu, 2970° / 54°

0.25

70 °

Riverdale, Thursday, 29 October

Rain. High 70°, low 54°.

Pressure30.06 inHg

Wind11.8 mph SW

Humidity52%

Visibility—

Dew point50°

Fri, 3053° / 49°

0.13

53 °

Riverdale, Friday, 30 October

Light rain. High 53°, low 49°.

Pressure30.27 inHg

Wind9.7 mph NE

Humidity60%

Visibility—

Dew point39°

Sat, 3159° / 49°

0.1

59 °

Riverdale, Saturday, 31 October

Light rain. High 59°, low 49°.

Pressure30.15 inHg

Wind8.2 mph NE

Humidity82%

Visibility—

Dew point50°

Sun, 0162° / 54°

62 °

Riverdale, Sunday, 1 November

Overcast. High 62°, low 54°.

Pressure30.12 inHg

Wind3.7 mph E

Humidity63%

Visibility—

Dew point48°

Mon, 0264° / 54°

0.01

64 °

Riverdale, Monday, 2 November

Light rain. High 64°, low 54°.

Pressure30.06 inHg

Wind6.6 mph SE

Humidity56%

Visibility—

Dew point47°

Tue, 0360° / 58°

0.62

60 °

Riverdale, Tuesday, 3 November

Rain. High 60°, low 58°.

Pressure29.74 inHg

Wind8.6 mph SE

Humidity95%

Visibility—

Dew point58°

Wed, 0466° / 60°

0.07

66 °

Riverdale, Wednesday, 4 November

Light rain. High 66°, low 60°.

Pressure29.68 inHg

Wind6.6 mph NW

Humidity82%

Visibility—

Dew point58°

Thu, 0569° / 58°

0.24

69 °

Riverdale, Thursday, 5 November

Rain. High 69°, low 58°.

Pressure29.83 inHg

Wind5.2 mph SE

Humidity61%

Visibility—

Dew point53°

Fri, 0666° / 58°

66 °

Riverdale, Friday, 6 November

Overcast. High 66°, low 58°.

Pressure29.88 inHg

Wind11.1 mph SW

Humidity59%

Visibility—

Dew point48°

Sat, 0770° / 55°

70 °

Riverdale, Saturday, 7 November

Clear. High 70°, low 55°.

Pressure29.71 inHg

Wind13.6 mph W

Humidity40%

Visibility—

Dew point42°

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

Sun, 0851° / 39°

0.06

51 °

Riverdale, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°

Average low39°

Average precipitation0.06 in

Chance of precipitation20%

Record high74° (2020)

Record low17° (1991)

Mon, 0952° / 40°

0.13

52 °

Riverdale, Monday, 9 November

Climate normal for this date — 60-year average.

Average high52°

Average low40°

Average precipitation0.13 in

Chance of precipitation35%

Record high72° (2020)

Record low20° (1991)

Tue, 1051° / 39°

0.13

51 °

Riverdale, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°

Average low39°

Average precipitation0.13 in

Chance of precipitation40%

Record high73° (2020)

Record low18° (2018)

Wed, 1148° / 37°

0.08

48 °

Riverdale, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.08 in

Chance of precipitation32%

Record high70° (1964)

Record low19° (2019)

Thu, 1247° / 35°

0.06

47 °

Riverdale, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.06 in

Chance of precipitation23%

Record high68° (1964)

Record low6° (2019)

Fri, 1347° / 35°

0.05

47 °

Riverdale, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.05 in

Chance of precipitation20%

Record high68° (1999)

Record low3° (2019)

Sat, 1448° / 35°

0.07

48 °

Riverdale, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high48°

Average low35°

Average precipitation0.07 in

Chance of precipitation33%

Record high69° (1971)

Record low15° (1986)

Sun, 1547° / 36°

0.1

47 °

Riverdale, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°

Average low36°

Average precipitation0.1 in

Chance of precipitation32%

Record high67° (2025)

Record low21° (1982)

Mon, 1647° / 35°

0.05

47 °

Riverdale, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.05 in

Chance of precipitation25%

Record high63° (2023)

Record low22° (1997)

Tue, 1748° / 36°

0.09

48 °

Riverdale, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.09 in

Chance of precipitation30%

Record high68° (2016)

Record low17° (2014)

Wed, 1848° / 37°

0.15

48 °

Riverdale, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.15 in

Chance of precipitation30%

Record high66° (2016)

Record low13° (2014)

Thu, 1947° / 36°

0.08

47 °

Riverdale, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high47°

Average low36°

Average precipitation0.08 in

Chance of precipitation35%

Record high65° (1985)

Record low19° (2014)

Fri, 2046° / 35°

0.1

46 °

Riverdale, Friday, 20 November

Climate normal for this date — 60-year average.

Average high46°

Average low35°

Average precipitation0.1 in

Chance of precipitation37%

Record high62° (2003)

Record low14° (2022)

Sat, 2145° / 34°

0.11

45 °

Riverdale, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high45°

Average low34°

Average precipitation0.11 in

Chance of precipitation27%

Record high66° (1990)

Record low12° (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 Riverdale, 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 Riverdale, 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.