As of 21:27 CST

Weather in Richardson, IL

44°

Richardson, Wednesday, 11 November, 21:27

Overcast. Feels like 41°. High 53°, low 39°.

Pressure29.85 inHg

Wind5.7 mph W

Humidity94%

Visibility6.2 mi

Dew point42°

See detailed hourly forecast

Monthly outlook for Richardson, IL: average high 46.3°, average low 34.4°. That is 0.6° above the climate normal for November. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 20 November (56.9°), the coolest 26 November (23.3°).

46.3°/34.4°

Average high / low

+0.6°

Above normal

3 / 4

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 November – 20 November	49°	46.4°	+1.5°
21 November – 30 November	41.7°	41.9°	-0.1°
1 December – 10 December	at normal	36.1°	—

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).

Thu, 1247° / 34°

47 °

Richardson, Thursday, 12 November

Overcast. High 47°, low 34°.

Pressure29.97 inHg

Wind17.1 mph N

Humidity65%

Visibility6.2 mi

Dew point27°

Fri, 1344° / 31°

44 °

Richardson, Friday, 13 November

Overcast. High 44°, low 31°.

Pressure30.09 inHg

Wind12.5 mph N

Humidity65%

Visibility6.2 mi

Dew point25°

Sat, 1442° / 27°

42 °

Richardson, Saturday, 14 November

Clear. High 42°, low 27°.

Pressure30.30 inHg

Wind7.7 mph NW

Humidity67%

Visibility6.2 mi

Dew point27°

Sun, 1545° / 27°

45 °

Richardson, Sunday, 15 November

Clear. High 45°, low 27°.

Pressure30.45 inHg

Wind5.2 mph W

Humidity60%

Visibility6.2 mi

Dew point29°

Mon, 1649° / 31°

49 °

Richardson, Monday, 16 November

Clear. High 49°, low 31°.

Pressure30.45 inHg

Wind8.2 mph SW

Humidity52%

Visibility—

Dew point29°

Tue, 1750° / 33°

50 °

Richardson, Tuesday, 17 November

Clear. High 50°, low 33°.

Pressure30.42 inHg

Wind9.4 mph S

Humidity54%

Visibility—

Dew point32°

Wed, 1851° / 35°

51 °

Richardson, Wednesday, 18 November

Clear. High 51°, low 35°.

Pressure30.33 inHg

Wind13.4 mph S

Humidity47%

Visibility—

Dew point29°

Thu, 1952° / 39°

52 °

Richardson, Thursday, 19 November

Overcast. High 52°, low 39°.

Pressure30.24 inHg

Wind11 mph S

Humidity50%

Visibility—

Dew point32°

Fri, 2057° / 44°

57 °

Richardson, Friday, 20 November

Overcast. High 57°, low 44°.

Pressure30.06 inHg

Wind12 mph SW

Humidity58%

Visibility—

Dew point39°

Sat, 2146° / 43°

46 °

Richardson, Saturday, 21 November

Overcast. High 46°, low 43°.

Pressure30.15 inHg

Wind7.7 mph NW

Humidity87%

Visibility—

Dew point42°

Sun, 2257° / 44°

0.19

57 °

Richardson, Sunday, 22 November

Light rain. High 57°, low 44°.

Pressure29.68 inHg

Wind18.7 mph S

Humidity73%

Visibility—

Dew point47°

Mon, 2344° / 41°

44 °

Richardson, Monday, 23 November

Overcast. High 44°, low 41°.

Pressure30.00 inHg

Wind7.9 mph NW

Humidity72%

Visibility—

Dew point35°

Tue, 2440° / 33°

0.64

40 °

Richardson, Tuesday, 24 November

Snow. High 40°, low 33°.

Pressure29.85 inHg

Wind15.3 mph N

Humidity89%

Visibility—

Dew point34°

Wed, 2534° / 28°

34 °

Richardson, Wednesday, 25 November

Mostly clear. High 34°, low 28°.

Pressure30.06 inHg

Wind15 mph NW

Humidity85%

Visibility—

Dew point29°

Thu, 2630° / 23°

30 °

Richardson, Thursday, 26 November

Mostly clear. High 30°, low 23°.

Pressure30.50 inHg

Wind14.5 mph NW

Humidity54%

Visibility—

Dew point14°

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

Fri, 2741° / 29°

0.19

41 °

Richardson, Friday, 27 November

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.19 in

Chance of precipitation48%

Record high65° (1990)

Record low9° (1977)

Sat, 2839° / 27°

0.12

39 °

Richardson, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high39°

Average low27°

Average precipitation0.12 in

Chance of precipitation30%

Record high64° (1998)

Record low4° (2018)

Sun, 2940° / 27°

0.06

40 °

Richardson, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high40°

Average low27°

Average precipitation0.06 in

Chance of precipitation32%

Record high65° (1998)

Record low5° (1976)

Mon, 3040° / 27°

0.07

40 °

Richardson, Monday, 30 November

Climate normal for this date — 60-year average.

Average high40°

Average low27°

Average precipitation0.07 in

Chance of precipitation27%

Record high65° (1998)

Record low8° (1978)

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)

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.