Monthly outlook for Royse City, TX: average high 107.2°, average low 79.7°. That is 7.9° above the climate normal for August. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 1.2 inches. The warmest day looks like 20 August (113°), the coolest 9 August (77.1°).
107.2°/79.7°
Average high / low
+7.9°
Above normal
2 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
105.3°
93°
+6.8°
19 August – 28 August
110.2°
92.6°
+9.8°
29 August – 7 September
at normal
89.9°
—
August records over 66 years
108°18 August 2023All-time high
60.6°25 August 1966All-time low
Climate normals and records are computed from the nearest reference point — Mobile City (7 mi).
Mon, 10101° / 78°0
101 °
Royse City, Monday, 10 August
Clear. High 101°, low 78°.
Pressure30.03 inHg
Wind12.5 mph S
Humidity37%
Visibility6.2 mi
Dew point65°
Tue, 11104° / 78°0
104 °
Royse City, Tuesday, 11 August
Clear. High 104°, low 78°.
Pressure30.00 inHg
Wind14.2 mph SW
Humidity37%
Visibility6.2 mi
Dew point66°
Wed, 12105° / 79°0
105 °
Royse City, Wednesday, 12 August
Clear. High 105°, low 79°.
Pressure29.91 inHg
Wind14.7 mph SW
Humidity33%
Visibility6.2 mi
Dew point64°
Thu, 13106° / 78°0
106 °
Royse City, Thursday, 13 August
Clear. High 106°, low 78°.
Pressure29.88 inHg
Wind19.8 mph SW
Humidity27%
Visibility—
Dew point57°
Fri, 14106° / 78°0
106 °
Royse City, Friday, 14 August
Clear. High 106°, low 78°.
Pressure30.00 inHg
Wind19.8 mph S
Humidity27%
Visibility—
Dew point58°
Sat, 15105° / 79°0
105 °
Royse City, Saturday, 15 August
Clear. High 105°, low 79°.
Pressure30.09 inHg
Wind17.9 mph S
Humidity28%
Visibility—
Dew point59°
Sun, 16108° / 82°0
108 °
Royse City, Sunday, 16 August
Partly cloudy. High 108°, low 82°.
Pressure30.06 inHg
Wind16.6 mph S
Humidity25%
Visibility—
Dew point58°
Mon, 17110° / 81°0
110 °
Royse City, Monday, 17 August
Partly cloudy. High 110°, low 81°.
Pressure29.97 inHg
Wind13.3 mph S
Humidity16%
Visibility—
Dew point48°
Tue, 18109° / 82°0
109 °
Royse City, Tuesday, 18 August
Clear. High 109°, low 82°.
Pressure29.88 inHg
Wind16.7 mph S
Humidity18%
Visibility—
Dew point51°
Wed, 19112° / 80°0
112 °
Royse City, Wednesday, 19 August
Clear. High 112°, low 80°.
Pressure29.85 inHg
Wind16.2 mph NE
Humidity17%
Visibility—
Dew point50°
Thu, 20113° / 82°0
113 °
Royse City, Thursday, 20 August
Clear. High 113°, low 82°.
Pressure29.85 inHg
Wind13.5 mph SE
Humidity18%
Visibility—
Dew point53°
Fri, 21112° / 79°0.02
112 °
Royse City, Friday, 21 August
Light rain. High 112°, low 79°.
Pressure29.80 inHg
Wind16.4 mph SW
Humidity19%
Visibility—
Dew point53°
Sat, 22111° / 82°0.01
111 °
Royse City, Saturday, 22 August
Light rain. High 111°, low 82°.
Pressure29.91 inHg
Wind16.4 mph S
Humidity23%
Visibility—
Dew point58°
Sun, 23109° / 81°0.09
109 °
Royse City, Sunday, 23 August
Light rain. High 109°, low 81°.
Pressure30.00 inHg
Wind9.9 mph W
Humidity22%
Visibility—
Dew point56°
Mon, 24104° / 79°0.09
104 °
Royse City, Monday, 24 August
Light rain. High 104°, low 79°.
Pressure30.00 inHg
Wind18.5 mph E
Humidity29%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2593° / 76°0.02
93 °
Royse City, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high93°
Average low76°
Average precipitation0.02 in
Chance of precipitation12%
Record high106° (2023)
Record low61° (1966)
Wed, 2692° / 76°0.04
92 °
Royse City, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high92°
Average low76°
Average precipitation0.04 in
Chance of precipitation15%
Record high105° (2023)
Record low62° (1966)
Thu, 2792° / 76°0.06
92 °
Royse City, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high92°
Average low76°
Average precipitation0.06 in
Chance of precipitation27%
Record high103° (2011)
Record low66° (1966)
Fri, 2891° / 75°0.07
91 °
Royse City, Friday, 28 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.07 in
Chance of precipitation22%
Record high104° (2011)
Record low61° (1992)
Sat, 2991° / 75°0.11
91 °
Royse City, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.11 in
Chance of precipitation25%
Record high101° (2020)
Record low63° (1986)
Sun, 3091° / 74°0.1
91 °
Royse City, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high91°
Average low74°
Average precipitation0.1 in
Chance of precipitation28%
Record high101° (2000)
Record low62° (1986)
Mon, 3191° / 75°0.15
91 °
Royse City, Monday, 31 August
Climate normal for this date — 60-year average.
Average high91°
Average low75°
Average precipitation0.15 in
Chance of precipitation25%
Record high102° (2000)
Record low65° (2004)
Tue, 0190° / 74°0.12
90 °
Royse City, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.12 in
Chance of precipitation30%
Record high104° (2000)
Record low66° (1968)
Wed, 0290° / 74°0.15
90 °
Royse City, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.15 in
Chance of precipitation38%
Record high104° (2000)
Record low64° (1987)
Thu, 0389° / 74°0.09
89 °
Royse City, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high89°
Average low74°
Average precipitation0.09 in
Chance of precipitation35%
Record high105° (2000)
Record low60° (1974)
Fri, 0490° / 74°0.05
90 °
Royse City, Friday, 4 September
Climate normal for this date — 60-year average.
Average high90°
Average low74°
Average precipitation0.05 in
Chance of precipitation23%
Record high107° (2000)
Record low57° (1974)
Sat, 0589° / 73°0.19
89 °
Royse City, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high89°
Average low73°
Average precipitation0.19 in
Chance of precipitation22%
Record high101° (2023)
Record low54° (1974)
Sun, 0689° / 72°0.1
89 °
Royse City, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.1 in
Chance of precipitation20%
Record high101° (2012)
Record low54° (1974)
Mon, 0789° / 72°0.05
89 °
Royse City, Monday, 7 September
Climate normal for this date — 60-year average.
Average high89°
Average low72°
Average precipitation0.05 in
Chance of precipitation22%
Record high106° (2023)
Record low59° (2017)
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 Royse City, 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 Royse City, 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.