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As of 00:40 CDT

Weather in Alton, MO

75°Current weather

Alton, Sunday, 9 August, 00:40

Clear. Feels like 76°. High 94°, low 70°.

Pressure30.03 inHg
Wind5.4 mph S
Humidity90%
Visibility6.2 mi
Dew point71°

10-day forecast for Alton, MO: 70° to 105°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

105°
Best day: Sunday, August 16
102° · 0.36 in
Worst day: Monday, August 17

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 10100° / 72°0Clear
MorningClear77°feels 78°
AfternoonClear99°feels 101°
EveningClear88°feels 89°
OvernightClear75°feels 76°
100 °Clear

Alton, Monday, 10 August

Clear. High 100°, low 72°.

Pressure30.00 inHg
Wind8.5 mph SW
Humidity39%
Visibility6.2 mi
Dew point66°
Tue, 11104° / 74°0Light rain
MorningMostly clear79°feels 79°
AfternoonClear101°feels 103°
EveningOvercast90°feels 92°
OvernightClear76°feels 77°
104 °Light rain

Alton, Tuesday, 11 August

Light rain. High 104°, low 74°.

Pressure29.91 inHg
Wind11.3 mph SW
Humidity36%
Visibility6.2 mi
Dew point66°
Wed, 1297° / 73°0.07Light rain
MorningOvercast77°feels 78°
AfternoonOvercast98°feels 98°
EveningOvercast78°feels 78°
OvernightOvercast79°feels 79°
97 °Light rain

Alton, Wednesday, 12 August

Light rain. High 97°, low 73°.

Pressure29.85 inHg
Wind11.1 mph W
Humidity37%
Visibility6.2 mi
Dew point65°
Thu, 13100° / 72°0Overcast
MorningOvercast78°feels 80°
AfternoonOvercast94°feels 98°
EveningOvercast91°feels 94°
OvernightOvercast85°feels 86°
100 °Overcast

Alton, Thursday, 13 August

Overcast. High 100°, low 72°.

Pressure29.88 inHg
Wind10.7 mph S
Humidity42%
Visibility—
Dew point65°
Fri, 14103° / 73°0.02Light rain
MorningLight rain80°feels 81°
AfternoonLight rain95°feels 97°
EveningLight rain85°feels 88°
OvernightLight rain75°feels 77°
103 °Light rain

Alton, Friday, 14 August

Light rain. High 103°, low 73°.

Pressure29.94 inHg
Wind11.5 mph NE
Humidity32%
Visibility—
Dew point59°
Sat, 1599° / 72°0Overcast
MorningOvercast77°feels 79°
AfternoonOvercast88°feels 93°
EveningOvercast88°feels 93°
OvernightOvercast79°feels 79°
99 °Overcast

Alton, Saturday, 15 August

Overcast. High 99°, low 72°.

Pressure30.12 inHg
Wind11.8 mph E
Humidity55%
Visibility—
Dew point67°
Sun, 16105° / 76°0Mostly clear
MorningMostly clear85°feels 85°
AfternoonMostly clear101°feels 102°
EveningMostly clear82°feels 86°
OvernightMostly clear76°feels 77°
105 °Mostly clear

Alton, Sunday, 16 August

Mostly clear. High 105°, low 76°.

Pressure30.00 inHg
Wind8.9 mph W
Humidity23%
Visibility—
Dew point56°
Mon, 17102° / 72°0.36Rain
MorningRain79°feels 80°
AfternoonRain94°feels 97°
EveningRain88°feels 91°
OvernightRain74°feels 75°
102 °Rain

Alton, Monday, 17 August

Rain. High 102°, low 72°.

Pressure30.00 inHg
Wind8.5 mph NE
Humidity39%
Visibility—
Dew point63°
Tue, 1893° / 72°0Overcast
MorningOvercast77°feels 79°
AfternoonOvercast89°feels 93°
EveningOvercast85°feels 90°
OvernightOvercast76°feels 77°
93 °Overcast

Alton, Tuesday, 18 August

Overcast. High 93°, low 72°.

Pressure29.97 inHg
Wind8.4 mph SE
Humidity45%
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, MO 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.