Monthly outlook for Onion Creek, TX: average high 105.1°, average low 77.3°. That is 6° above the climate normal for August. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 21 August (109.4°), the coolest 23 August (75°).
105.1°/77.3°
Average high / low
+6°
Above normal
3 / 3
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
104.9°
94.3°
+5.9°
19 August – 28 August
105.6°
93.7°
+6.6°
29 August – 7 September
at normal
90.9°
—
August records over 66 years
108.3°18 August 2023All-time high
61°28 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Bardwell (5 mi).
Mon, 10101° / 77°0
101 °
Onion Creek, Monday, 10 August
Clear. High 101°, low 77°.
Pressure30.00 inHg
Wind10.9 mph S
Humidity37%
Visibility6.2 mi
Dew point65°
Tue, 11105° / 78°0
105 °
Onion Creek, Tuesday, 11 August
Clear. High 105°, low 78°.
Pressure30.00 inHg
Wind13.4 mph SW
Humidity36%
Visibility6.2 mi
Dew point66°
Wed, 12106° / 79°0
106 °
Onion Creek, Wednesday, 12 August
Clear. High 106°, low 79°.
Pressure29.91 inHg
Wind14 mph S
Humidity35%
Visibility6.2 mi
Dew point65°
Thu, 13107° / 76°0
107 °
Onion Creek, Thursday, 13 August
Overcast. High 107°, low 76°.
Pressure29.91 inHg
Wind16.9 mph S
Humidity31%
Visibility6.2 mi
Dew point62°
Fri, 14107° / 77°0
107 °
Onion Creek, Friday, 14 August
Mostly clear. High 107°, low 77°.
Pressure30.00 inHg
Wind18.5 mph S
Humidity30%
Visibility—
Dew point60°
Sat, 15106° / 79°0
106 °
Onion Creek, Saturday, 15 August
Clear. High 106°, low 79°.
Pressure30.06 inHg
Wind18.6 mph S
Humidity31%
Visibility—
Dew point62°
Sun, 16107° / 77°0
107 °
Onion Creek, Sunday, 16 August
Clear. High 107°, low 77°.
Pressure30.06 inHg
Wind19.6 mph S
Humidity18%
Visibility—
Dew point47°
Mon, 17106° / 76°0
106 °
Onion Creek, Monday, 17 August
Clear. High 106°, low 76°.
Pressure29.97 inHg
Wind18.1 mph S
Humidity22%
Visibility—
Dew point52°
Tue, 18107° / 78°0
107 °
Onion Creek, Tuesday, 18 August
Clear. High 107°, low 78°.
Pressure29.97 inHg
Wind17.8 mph S
Humidity26%
Visibility—
Dew point57°
Wed, 19107° / 79°0
107 °
Onion Creek, Wednesday, 19 August
Clear. High 107°, low 79°.
Pressure29.97 inHg
Wind17.2 mph S
Humidity23%
Visibility—
Dew point55°
Thu, 20109° / 79°0
109 °
Onion Creek, Thursday, 20 August
Clear. High 109°, low 79°.
Pressure29.91 inHg
Wind16.7 mph S
Humidity21%
Visibility—
Dew point54°
Fri, 21109° / 79°0
109 °
Onion Creek, Friday, 21 August
Clear. High 109°, low 79°.
Pressure29.88 inHg
Wind17.3 mph S
Humidity20%
Visibility—
Dew point53°
Sat, 22107° / 77°0.07
107 °
Onion Creek, Saturday, 22 August
Light rain. High 107°, low 77°.
Pressure29.91 inHg
Wind15.9 mph S
Humidity25%
Visibility—
Dew point56°
Sun, 23103° / 75°1.15
103 °
Onion Creek, Sunday, 23 August
Heavy rain. High 103°, low 75°.
Pressure29.94 inHg
Wind10.7 mph NE
Humidity34%
Visibility—
Dew point64°
Mon, 2497° / 76°0.1
97 °
Onion Creek, Monday, 24 August
Light rain. High 97°, low 76°.
Pressure30.03 inHg
Wind11.8 mph S
Humidity49%
Visibility—
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2594° / 76°0.02
94 °
Onion Creek, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high94°
Average low76°
Average precipitation0.02 in
Chance of precipitation12%
Record high107° (2023)
Record low62° (1966)
Wed, 2694° / 77°0.07
94 °
Onion Creek, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high94°
Average low77°
Average precipitation0.07 in
Chance of precipitation18%
Record high107° (2023)
Record low62° (1966)
Thu, 2793° / 76°0.06
93 °
Onion Creek, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high93°
Average low76°
Average precipitation0.06 in
Chance of precipitation23%
Record high105° (2011)
Record low67° (1966)
Fri, 2892° / 76°0.06
92 °
Onion Creek, Friday, 28 August
Climate normal for this date — 60-year average.
Average high92°
Average low76°
Average precipitation0.06 in
Chance of precipitation28%
Record high105° (2011)
Record low61° (1992)
Sat, 2992° / 76°0.11
92 °
Onion Creek, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high92°
Average low76°
Average precipitation0.11 in
Chance of precipitation25%
Record high101° (2011)
Record low64° (1986)
Sun, 3092° / 75°0.16
92 °
Onion Creek, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high92°
Average low75°
Average precipitation0.16 in
Chance of precipitation23%
Record high102° (2000)
Record low62° (1986)
Mon, 3191° / 75°0.13
91 °
Onion Creek, Monday, 31 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.13 in
Chance of precipitation30%
Record high103° (2000)
Record low65° (2004)
Tue, 0191° / 75°0.11
91 °
Onion Creek, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.11 in
Chance of precipitation27%
Record high105° (2000)
Record low65° (2004)
Wed, 0291° / 75°0.17
91 °
Onion Creek, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.17 in
Chance of precipitation28%
Record high105° (2000)
Record low65° (1987)
Thu, 0391° / 74°0.13
91 °
Onion Creek, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.13 in
Chance of precipitation35%
Record high105° (2000)
Record low61° (1974)
Fri, 0491° / 74°0.06
91 °
Onion Creek, Friday, 4 September
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.06 in
Chance of precipitation25%
Record high108° (2000)
Record low58° (1974)
Sat, 0591° / 74°0.15
91 °
Onion Creek, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.15 in
Chance of precipitation28%
Record high103° (2000)
Record low55° (1974)
Sun, 0690° / 73°0.14
90 °
Onion Creek, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high90°
Average low73°
Average precipitation0.14 in
Chance of precipitation22%
Record high101° (2012)
Record low55° (1974)
Mon, 0790° / 73°0.07
90 °
Onion Creek, Monday, 7 September
Climate normal for this date — 60-year average.
Average high90°
Average low73°
Average precipitation0.07 in
Chance of precipitation18%
Record high105° (2023)
Record low60° (1974)
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 Onion Creek, 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 Onion Creek, 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.