Monthly outlook for Richardson, TX: average high 81.2°, average low 66.8°. That is 3.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 4 days and 2.2 inches. The warmest day looks like 13 October (92.7°), the coolest 18 October (54.3°).
81.2°/66.8°
Average high / low
+3.3°
Above normal
2 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
82.4°
76.5°
+3.3°
22 October – 31 October
79.2°
72.2°
+3.9°
1 November – 10 November
at normal
68.2°
—
October records over 66 years
96.8°1 October 1977All-time high
30°31 October 2019All-time low
Tue, 1393° / 74°0.06
93 °
Richardson, Tuesday, 13 October
Light rain. High 93°, low 74°.
Pressure29.97 inHg
Wind8 mph S
Humidity68%
Visibility6.2 mi
Dew point73°
Wed, 1491° / 77°0.01
91 °
Richardson, Wednesday, 14 October
Light rain. High 91°, low 77°.
Pressure30.00 inHg
Wind7.9 mph S
Humidity61%
Visibility6.2 mi
Dew point72°
Thu, 1588° / 71°0
88 °
Richardson, Thursday, 15 October
Clear. High 88°, low 71°.
Pressure30.06 inHg
Wind7.7 mph S
Humidity58%
Visibility6.2 mi
Dew point66°
Fri, 1676° / 64°0
76 °
Richardson, Friday, 16 October
Overcast. High 76°, low 64°.
Pressure30.27 inHg
Wind14.1 mph N
Humidity63%
Visibility—
Dew point62°
Sat, 1773° / 58°0
73 °
Richardson, Saturday, 17 October
Clear. High 73°, low 58°.
Pressure30.33 inHg
Wind10.3 mph NE
Humidity37%
Visibility—
Dew point40°
Sun, 1873° / 54°0
73 °
Richardson, Sunday, 18 October
Clear. High 73°, low 54°.
Pressure30.24 inHg
Wind7 mph SE
Humidity27%
Visibility—
Dew point32°
Mon, 1973° / 62°0.01
73 °
Richardson, Monday, 19 October
Light rain. High 73°, low 62°.
Pressure30.18 inHg
Wind7.5 mph SE
Humidity34%
Visibility—
Dew point42°
Tue, 2084° / 66°0
84 °
Richardson, Tuesday, 20 October
Overcast. High 84°, low 66°.
Pressure30.09 inHg
Wind8 mph SE
Humidity54%
Visibility—
Dew point60°
Wed, 2182° / 70°0
82 °
Richardson, Wednesday, 21 October
Clear. High 82°, low 70°.
Pressure30.06 inHg
Wind12.1 mph E
Humidity52%
Visibility—
Dew point61°
Thu, 2281° / 71°0.02
81 °
Richardson, Thursday, 22 October
Light rain. High 81°, low 71°.
Pressure30.12 inHg
Wind11.2 mph E
Humidity68%
Visibility—
Dew point63°
Fri, 2384° / 72°0
84 °
Richardson, Friday, 23 October
Overcast. High 84°, low 72°.
Pressure30.21 inHg
Wind7.2 mph SE
Humidity53%
Visibility—
Dew point63°
Sat, 2486° / 73°0
86 °
Richardson, Saturday, 24 October
Overcast. High 86°, low 73°.
Pressure30.12 inHg
Wind11.1 mph SE
Humidity41%
Visibility—
Dew point56°
Sun, 2580° / 71°0.77
80 °
Richardson, Sunday, 25 October
Heavy rain. High 80°, low 71°.
Pressure30.06 inHg
Wind10.4 mph S
Humidity53%
Visibility—
Dew point61°
Mon, 2673° / 61°0
73 °
Richardson, Monday, 26 October
Partly cloudy. High 73°, low 61°.
Pressure30.12 inHg
Wind12 mph N
Humidity45%
Visibility—
Dew point47°
Tue, 2771° / 56°0
71 °
Richardson, Tuesday, 27 October
Clear. High 71°, low 56°.
Pressure30.09 inHg
Wind8.5 mph N
Humidity49%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2871° / 55°0.16
71 °
Richardson, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.16 in
Chance of precipitation30%
Record high87° (2024)
Record low37° (2017)
Thu, 2971° / 54°0.15
71 °
Richardson, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.15 in
Chance of precipitation27%
Record high87° (2024)
Record low38° (1993)
Fri, 3071° / 55°0.21
71 °
Richardson, Friday, 30 October
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.21 in
Chance of precipitation40%
Record high89° (2024)
Record low35° (1993)
Sat, 3171° / 54°0.18
71 °
Richardson, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.18 in
Chance of precipitation30%
Record high86° (1977)
Record low30° (2019)
Sun, 0170° / 53°0.13
70 °
Richardson, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.13 in
Chance of precipitation27%
Record high83° (2012)
Record low32° (2019)
Mon, 0268° / 52°0.1
68 °
Richardson, Monday, 2 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.1 in
Chance of precipitation20%
Record high90° (2017)
Record low33° (1991)
Tue, 0368° / 52°0.11
68 °
Richardson, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.11 in
Chance of precipitation23%
Record high83° (1978)
Record low29° (1991)
Wed, 0468° / 52°0.14
68 °
Richardson, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.14 in
Chance of precipitation23%
Record high84° (2017)
Record low28° (1991)
Thu, 0569° / 52°0.14
69 °
Richardson, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.14 in
Chance of precipitation20%
Record high91° (2017)
Record low33° (1991)
Fri, 0669° / 52°0.14
69 °
Richardson, Friday, 6 November
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.14 in
Chance of precipitation20%
Record high85° (1989)
Record low37° (1993)
Sat, 0768° / 52°0.12
68 °
Richardson, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.12 in
Chance of precipitation23%
Record high84° (1980)
Record low33° (1993)
Sun, 0867° / 52°0.13
67 °
Richardson, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high67°
Average low52°
Average precipitation0.13 in
Chance of precipitation25%
Record high84° (1980)
Record low30° (1991)
Mon, 0968° / 53°0.09
68 °
Richardson, Monday, 9 November
Climate normal for this date — 60-year average.
Average high68°
Average low53°
Average precipitation0.09 in
Chance of precipitation33%
Record high85° (2005)
Record low32° (1991)
Tue, 1067° / 51°0.12
67 °
Richardson, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.12 in
Chance of precipitation20%
Record high81° (1995)
Record low33° (2025)
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, TX 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, TX 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.