10-day forecast for Alton, TX: 78° to 104°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
104°
Best day: Tuesday, August 18
99°
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 10102° / 79°0
Morning82°feels 89°
Afternoon101°feels 105°
Evening91°feels 93°
Overnight82°feels 87°
102 °
Alton, Monday, 10 August
Mostly clear. High 102°, low 79°.
Pressure29.97 inHg
Wind15.2 mph SE
Humidity38%
Visibility6.2 mi
Dew point67°
Tue, 11102° / 81°0
Morning82°feels 89°
Afternoon101°feels 105°
Evening91°feels 95°
Overnight83°feels 89°
102 °
Alton, Tuesday, 11 August
Clear. High 102°, low 81°.
Pressure29.97 inHg
Wind16.6 mph SE
Humidity39%
Visibility6.2 mi
Dew point68°
Wed, 12102° / 81°0
Morning82°feels 89°
Afternoon102°feels 103°
Evening89°feels 92°
Overnight83°feels 90°
102 °
Alton, Wednesday, 12 August
Clear. High 102°, low 81°.
Pressure29.91 inHg
Wind19.9 mph SE
Humidity33%
Visibility6.2 mi
Dew point64°
Thu, 13102° / 82°0
Morning87°feels 93°
Afternoon99°feels 103°
Evening92°feels 96°
Overnight84°feels 91°
102 °
Alton, Thursday, 13 August
Clear. High 102°, low 82°.
Pressure29.85 inHg
Wind22.4 mph SE
Humidity33%
Visibility—
Dew point64°
Fri, 14101° / 82°0
Morning87°feels 92°
Afternoon99°feels 103°
Evening93°feels 98°
Overnight86°feels 92°
101 °
Alton, Friday, 14 August
Mostly clear. High 101°, low 82°.
Pressure29.94 inHg
Wind21.5 mph SE
Humidity33%
Visibility—
Dew point63°
Sat, 1598° / 82°0
Morning86°feels 93°
Afternoon96°feels 101°
Evening93°feels 97°
Overnight85°feels 90°
98 °
Alton, Saturday, 15 August
Overcast. High 98°, low 82°.
Pressure30.06 inHg
Wind20.2 mph SE
Humidity41%
Visibility—
Dew point67°
Sun, 16104° / 80°0
Morning85°feels 90°
Afternoon98°feels 102°
Evening94°feels 98°
Overnight84°feels 89°
104 °
Alton, Sunday, 16 August
Mostly clear. High 104°, low 80°.
Pressure30.03 inHg
Wind22.5 mph SE
Humidity35%
Visibility—
Dew point64°
Mon, 17103° / 80°0
Morning85°feels 85°
Afternoon98°feels 99°
Evening94°feels 98°
Overnight84°feels 90°
103 °
Alton, Monday, 17 August
Clear. High 103°, low 80°.
Pressure30.03 inHg
Wind21.1 mph SE
Humidity29%
Visibility—
Dew point58°
Tue, 18104° / 80°0
Morning85°feels 90°
Afternoon98°feels 102°
Evening95°feels 99°
Overnight85°feels 90°
104 °
Alton, Tuesday, 18 August
Overcast. High 104°, low 80°.
Pressure30.00 inHg
Wind21.9 mph SE
Humidity36%
Visibility—
Dew point64°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Alton, TX around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.