As of 05:10 CST

Weather in Richardson, IL

29°

Richardson, Sunday, 15 November, 05:10

Clear. Feels like 22°. High 51°, low 29°.

Pressure30.39 inHg

Wind6.9 mph NW

Humidity88%

Visibility6.2 mi

Dew point26°

See detailed hourly forecast

Monthly outlook for Richardson, IL: average high 51.6°, average low 37.4°. That is 4.5° above the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 19 November (60.1°), the coolest 23 November (27°).

51.6°/37.4°

Average high / low

+4.5°

Above normal

1 / 5

Wet days / normal

0.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
15 November – 24 November	51°	45.2°	+3.2°
25 November – 4 December	52.7°	39.6°	+7.3°
5 December – 14 December	at normal	34.9°	—

November records over 66 years

74.5°2 November 1961All-time high

-0.2°26 November 1977All-time low

Climate normals and records are computed from the nearest reference point — Sycamore (5 mi).

Mon, 1654° / 32°

54 °

Richardson, Monday, 16 November

Clear. High 54°, low 32°.

Pressure30.50 inHg

Wind8.8 mph SW

Humidity51%

Visibility6.2 mi

Dew point32°

Tue, 1754° / 35°

54 °

Richardson, Tuesday, 17 November

Clear. High 54°, low 35°.

Pressure30.45 inHg

Wind9.6 mph SW

Humidity58%

Visibility6.2 mi

Dew point38°

Wed, 1855° / 39°

55 °

Richardson, Wednesday, 18 November

Overcast. High 55°, low 39°.

Pressure30.30 inHg

Wind14 mph S

Humidity59%

Visibility6.2 mi

Dew point40°

Thu, 1960° / 46°

60 °

Richardson, Thursday, 19 November

Overcast. High 60°, low 46°.

Pressure30.15 inHg

Wind15.8 mph SW

Humidity61%

Visibility—

Dew point44°

Fri, 2055° / 35°

55 °

Richardson, Friday, 20 November

Partly cloudy. High 55°, low 35°.

Pressure30.30 inHg

Wind11.1 mph S

Humidity57%

Visibility—

Dew point36°

Sat, 2154° / 48°

0.2

54 °

Richardson, Saturday, 21 November

Rain. High 54°, low 48°.

Pressure29.94 inHg

Wind18.8 mph S

Humidity71%

Visibility—

Dew point44°

Sun, 2246° / 34°

46 °

Richardson, Sunday, 22 November

Partly cloudy. High 46°, low 34°.

Pressure30.24 inHg

Wind22.1 mph W

Humidity56%

Visibility—

Dew point28°

Mon, 2340° / 27°

40 °

Richardson, Monday, 23 November

Clear. High 40°, low 27°.

Pressure30.56 inHg

Wind10.3 mph N

Humidity58%

Visibility—

Dew point24°

Tue, 2441° / 29°

41 °

Richardson, Tuesday, 24 November

Partly cloudy. High 41°, low 29°.

Pressure30.50 inHg

Wind8.3 mph S

Humidity43%

Visibility—

Dew point18°

Wed, 2547° / 32°

47 °

Richardson, Wednesday, 25 November

Mostly clear. High 47°, low 32°.

Pressure30.39 inHg

Wind12 mph S

Humidity40%

Visibility—

Dew point21°

Thu, 2654° / 38°

54 °

Richardson, Thursday, 26 November

Overcast. High 54°, low 38°.

Pressure30.27 inHg

Wind11.3 mph SW

Humidity63%

Visibility—

Dew point38°

Fri, 2753° / 41°

53 °

Richardson, Friday, 27 November

Overcast. High 53°, low 41°.

Pressure30.30 inHg

Wind7.2 mph S

Humidity56%

Visibility—

Dew point36°

Sat, 2855° / 44°

55 °

Richardson, Saturday, 28 November

Overcast. High 55°, low 44°.

Pressure30.36 inHg

Wind3.1 mph W

Humidity58%

Visibility—

Dew point38°

Sun, 2955° / 43°

55 °

Richardson, Sunday, 29 November

Overcast. High 55°, low 43°.

Pressure30.30 inHg

Wind6.6 mph N

Humidity65%

Visibility—

Dew point42°

Mon, 3052° / 46°

52 °

Richardson, Monday, 30 November

Overcast. High 52°, low 46°.

Pressure30.15 inHg

Wind7.8 mph NE

Humidity63%

Visibility—

Dew point39°

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

Tue, 0137° / 26°

0.12

37 °

Richardson, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high37°

Average low26°

Average precipitation0.12 in

Chance of precipitation38%

Record high62° (1970)

Record low5° (1971)

Wed, 0238° / 25°

0.06

38 °

Richardson, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high38°

Average low25°

Average precipitation0.06 in

Chance of precipitation30%

Record high67° (1982)

Record low1° (1971)

Thu, 0338° / 26°

0.08

38 °

Richardson, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high38°

Average low26°

Average precipitation0.08 in

Chance of precipitation33%

Record high68° (2012)

Record low2° (1985)

Fri, 0437° / 25°

0.06

37 °

Richardson, Friday, 4 December

Climate normal for this date — 60-year average.

Average high37°

Average low25°

Average precipitation0.06 in

Chance of precipitation20%

Record high64° (1998)

Record low-5° (1991)

Sat, 0538° / 24°

0.07

38 °

Richardson, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high38°

Average low24°

Average precipitation0.07 in

Chance of precipitation33%

Record high66° (2001)

Record low-5° (1991)

Sun, 0636° / 22°

0.06

36 °

Richardson, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high36°

Average low22°

Average precipitation0.06 in

Chance of precipitation22%

Record high61° (1998)

Record low-4° (1964)

Mon, 0734° / 22°

0.11

34 °

Richardson, Monday, 7 December

Climate normal for this date — 60-year average.

Average high34°

Average low22°

Average precipitation0.11 in

Chance of precipitation27%

Record high56° (1980)

Record low-6° (2005)

Tue, 0835° / 23°

0.07

35 °

Richardson, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high35°

Average low23°

Average precipitation0.07 in

Chance of precipitation28%

Record high60° (1991)

Record low-1° (2006)

Wed, 0935° / 21°

0.08

35 °

Richardson, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high35°

Average low21°

Average precipitation0.08 in

Chance of precipitation42%

Record high52° (1987)

Record low-8° (1978)

Thu, 1034° / 21°

0.08

34 °

Richardson, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high34°

Average low21°

Average precipitation0.08 in

Chance of precipitation25%

Record high57° (2015)

Record low-12° (1978)

Fri, 1133° / 20°

0.11

33 °

Richardson, Friday, 11 December

Climate normal for this date — 60-year average.

Average high33°

Average low20°

Average precipitation0.11 in

Chance of precipitation33%

Record high55° (1965)

Record low-18° (1972)

Sat, 1235° / 20°

0.07

35 °

Richardson, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high35°

Average low20°

Average precipitation0.07 in

Chance of precipitation23%

Record high59° (2015)

Record low-8° (2000)

Sun, 1335° / 21°

0.05

35 °

Richardson, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high35°

Average low21°

Average precipitation0.05 in

Chance of precipitation27%

Record high61° (2015)

Record low-16° (2000)

Mon, 1435° / 23°

0.1

35 °

Richardson, Monday, 14 December

Climate normal for this date — 60-year average.

Average high35°

Average low23°

Average precipitation0.1 in

Chance of precipitation30%

Record high61° (2015)

Record low-14° (1985)

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 Richardson, 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 Richardson, 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.