As of 16:51 CDT

Weather in Sunnyvale, TX

72°Current weather

Sunnyvale, Sunday, 18 October, 16:51

Clear. Feels like 71°. High 72°, low 48°.

Pressure30.27 inHg
Wind4.6 mph E
Humidity35%
Visibility6.2 mi
Dew point43°

Monthly outlook for Sunnyvale, TX: average high 77.1°, average low 60.6°. That is 2.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 4 days and 2.3 inches. The warmest day looks like 31 October (85.5°), the coolest 18 October (47.6°).

77.1°/60.6°
Average high / low
+2.1°
Above normal
5 / 4
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October77.7°74.6°+1.7°
28 October – 6 November76.1°70.1°+3.3°
7 November – 16 Novemberat normal66.6°—

October records over 66 years

97.7°1 October 1977All-time high
30.2°31 October 1993All-time low

Climate normals and records are computed from the nearest reference point — Mesquite (3 mi).

Mon, 1977° / 51°0Partly cloudy
77 °Partly cloudy

Sunnyvale, Monday, 19 October

Partly cloudy. High 77°, low 51°.

Pressure30.30 inHg
Wind4.1 mph SE
Humidity43%
Visibility6.2 mi
Dew point45°
Tue, 2076° / 54°0Clear
76 °Clear

Sunnyvale, Tuesday, 20 October

Clear. High 76°, low 54°.

Pressure30.27 inHg
Wind3 mph E
Humidity37%
Visibility6.2 mi
Dew point44°
Wed, 2178° / 58°0Clear
78 °Clear

Sunnyvale, Wednesday, 21 October

Clear. High 78°, low 58°.

Pressure30.24 inHg
Wind2.2 mph E
Humidity44%
Visibility6.2 mi
Dew point51°
Thu, 2281° / 60°0Partly cloudy
81 °Partly cloudy

Sunnyvale, Thursday, 22 October

Partly cloudy. High 81°, low 60°.

Pressure30.21 inHg
Wind3.6 mph SE
Humidity34%
Visibility6.2 mi
Dew point45°
Fri, 2381° / 62°0Overcast
81 °Overcast

Sunnyvale, Friday, 23 October

Overcast. High 81°, low 62°.

Pressure30.12 inHg
Wind7 mph SE
Humidity31%
Visibility—
Dew point44°
Sat, 2482° / 62°0Overcast
82 °Overcast

Sunnyvale, Saturday, 24 October

Overcast. High 82°, low 62°.

Pressure30.21 inHg
Wind8.5 mph SE
Humidity37%
Visibility—
Dew point49°
Sun, 2580° / 62°0Overcast
80 °Overcast

Sunnyvale, Sunday, 25 October

Overcast. High 80°, low 62°.

Pressure30.27 inHg
Wind7.8 mph SE
Humidity32%
Visibility—
Dew point43°
Mon, 2678° / 63°0Overcast
78 °Overcast

Sunnyvale, Monday, 26 October

Overcast. High 78°, low 63°.

Pressure30.21 inHg
Wind8.5 mph S
Humidity39%
Visibility—
Dew point48°
Tue, 2771° / 64°0.09Light rain
71 °Light rain

Sunnyvale, Tuesday, 27 October

Light rain. High 71°, low 64°.

Pressure30.15 inHg
Wind8 mph SE
Humidity74%
Visibility—
Dew point58°
Wed, 2869° / 63°0.12Light rain
69 °Light rain

Sunnyvale, Wednesday, 28 October

Light rain. High 69°, low 63°.

Pressure30.12 inHg
Wind9.8 mph SE
Humidity62%
Visibility—
Dew point55°
Thu, 2972° / 64°0.12Light rain
72 °Light rain

Sunnyvale, Thursday, 29 October

Light rain. High 72°, low 64°.

Pressure29.97 inHg
Wind10.4 mph SE
Humidity82%
Visibility—
Dew point65°
Fri, 3080° / 68°0.11Light rain
80 °Light rain

Sunnyvale, Friday, 30 October

Light rain. High 80°, low 68°.

Pressure29.94 inHg
Wind9.6 mph SE
Humidity79%
Visibility—
Dew point67°
Sat, 3185° / 69°0.02Light rain
85 °Light rain

Sunnyvale, Saturday, 31 October

Light rain. High 85°, low 69°.

Pressure29.91 inHg
Wind14.3 mph S
Humidity59%
Visibility—
Dew point65°
Sun, 0179° / 71°0.04Light rain
79 °Light rain

Sunnyvale, Sunday, 1 November

Light rain. High 79°, low 71°.

Pressure29.85 inHg
Wind13.3 mph S
Humidity76%
Visibility—
Dew point68°
Mon, 0272° / 49°0.75Rain
72 °Rain

Sunnyvale, Monday, 2 November

Rain. High 72°, low 49°.

Pressure30.15 inHg
Wind19.1 mph N
Humidity69%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0368° / 52°0.11Climate normal
68 °Climate normal

Sunnyvale, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high68°
Average low52°
Average precipitation0.11 in
Chance of precipitation30%
Record high85° (2024)
Record low29° (1991)
Wed, 0469° / 52°0.15Climate normal
69 °Climate normal

Sunnyvale, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high69°
Average low52°
Average precipitation0.15 in
Chance of precipitation27%
Record high85° (1987)
Record low27° (1991)
Thu, 0569° / 53°0.13Climate normal
69 °Climate normal

Sunnyvale, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high69°
Average low53°
Average precipitation0.13 in
Chance of precipitation20%
Record high89° (2017)
Record low32° (1991)
Fri, 0669° / 52°0.12Climate normal
69 °Climate normal

Sunnyvale, Friday, 6 November

Climate normal for this date — 60-year average.

Average high69°
Average low52°
Average precipitation0.12 in
Chance of precipitation18%
Record high85° (1989)
Record low37° (1993)
Sat, 0768° / 52°0.12Climate normal
68 °Climate normal

Sunnyvale, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high68°
Average low52°
Average precipitation0.12 in
Chance of precipitation23%
Record high85° (1980)
Record low31° (1993)
Sun, 0868° / 53°0.15Climate normal
68 °Climate normal

Sunnyvale, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high68°
Average low53°
Average precipitation0.15 in
Chance of precipitation25%
Record high85° (1980)
Record low30° (1991)
Mon, 0969° / 53°0.09Climate normal
69 °Climate normal

Sunnyvale, Monday, 9 November

Climate normal for this date — 60-year average.

Average high69°
Average low53°
Average precipitation0.09 in
Chance of precipitation32%
Record high86° (2005)
Record low31° (1991)
Tue, 1068° / 51°0.11Climate normal
68 °Climate normal

Sunnyvale, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high68°
Average low51°
Average precipitation0.11 in
Chance of precipitation22%
Record high81° (1980)
Record low34° (1960)
Wed, 1167° / 49°0.09Climate normal
67 °Climate normal

Sunnyvale, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high67°
Average low49°
Average precipitation0.09 in
Chance of precipitation20%
Record high80° (1999)
Record low33° (2019)
Thu, 1265° / 49°0.07Climate normal
65 °Climate normal

Sunnyvale, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high65°
Average low49°
Average precipitation0.07 in
Chance of precipitation28%
Record high80° (1999)
Record low23° (2019)
Fri, 1365° / 49°0.08Climate normal
65 °Climate normal

Sunnyvale, Friday, 13 November

Climate normal for this date — 60-year average.

Average high65°
Average low49°
Average precipitation0.08 in
Chance of precipitation15%
Record high81° (2011)
Record low26° (2019)
Sat, 1466° / 51°0.05Climate normal
66 °Climate normal

Sunnyvale, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high66°
Average low51°
Average precipitation0.05 in
Chance of precipitation17%
Record high86° (1989)
Record low26° (2018)
Sun, 1566° / 49°0.09Climate normal
66 °Climate normal

Sunnyvale, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high66°
Average low49°
Average precipitation0.09 in
Chance of precipitation23%
Record high86° (2025)
Record low30° (2018)
Mon, 1665° / 48°0.11Climate normal
65 °Climate normal

Sunnyvale, Monday, 16 November

Climate normal for this date — 60-year average.

Average high65°
Average low48°
Average precipitation0.11 in
Chance of precipitation28%
Record high81° (2025)
Record low30° (1997)

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 Sunnyvale, 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 Sunnyvale, 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.