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As of 03:37 EDT

Weather in Alton, IN

69°Current weather

Alton, Sunday, 9 August, 03:37

Clear. Feels like 70°. High 92°, low 69°.

Pressure30.06 inHg
Wind2.6 mph W
Humidity94%
Visibility6.2 mi
Dew point67°

10-day forecast for Alton, IN: 64° to 95°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.

94°
Best day: Monday, August 10
92° · 0.98 in
Worst day: Wednesday, August 12

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

Mon, 1094° / 75°0Clear
MorningClear77°feels 78°
AfternoonClear93°feels 100°
EveningClear88°feels 99°
OvernightMostly clear78°feels 79°
94 °Clear

Alton, Monday, 10 August

Clear. High 94°, low 75°.

Pressure30.03 inHg
Wind10 mph SW
Humidity54%
Visibility6.2 mi
Dew point70°
Tue, 1195° / 75°0.01Light rain
MorningOvercast76°feels 77°
AfternoonOvercast94°feels 100°
EveningMostly clear86°feels 93°
OvernightClear75°feels 76°
95 °Light rain

Alton, Tuesday, 11 August

Light rain. High 95°, low 75°.

Pressure29.97 inHg
Wind10.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point70°
Wed, 1292° / 70°0.98Heavy rain
MorningOvercast77°feels 78°
AfternoonOvercast92°feels 98°
EveningHeavy rain71°feels 72°
OvernightClear81°feels 84°
92 °Heavy rain

Alton, Wednesday, 12 August

Heavy rain. High 92°, low 70°.

Pressure29.83 inHg
Wind11.6 mph SW
Humidity58%
Visibility6.2 mi
Dew point71°
Thu, 1389° / 69°0.36Rain
MorningRain76°feels 78°
AfternoonRain87°feels 91°
EveningRain78°feels 78°
OvernightRain71°feels 72°
89 °Rain

Alton, Thursday, 13 August

Rain. High 89°, low 69°.

Pressure29.94 inHg
Wind10 mph NE
Humidity51%
Visibility—
Dew point66°
Fri, 1478° / 66°0.38Rain
MorningRain67°feels 67°
AfternoonRain69°feels 70°
EveningRain71°feels 72°
OvernightRain67°feels 68°
78 °Rain

Alton, Friday, 14 August

Rain. High 78°, low 66°.

Pressure30.06 inHg
Wind10.2 mph E
Humidity92%
Visibility—
Dew point66°
Sat, 1580° / 64°0.13Light rain
MorningLight rain68°feels 68°
AfternoonLight rain76°feels 77°
EveningLight rain74°feels 76°
OvernightLight rain67°feels 68°
80 °Light rain

Alton, Saturday, 15 August

Light rain. High 80°, low 64°.

Pressure30.18 inHg
Wind9.2 mph E
Humidity78%
Visibility—
Dew point67°
Sun, 1690° / 65°0Overcast
MorningOvercast74°feels 76°
AfternoonOvercast88°feels 94°
EveningOvercast80°feels 85°
OvernightOvercast72°feels 73°
90 °Overcast

Alton, Sunday, 16 August

Overcast. High 90°, low 65°.

Pressure30.03 inHg
Wind6.2 mph E
Humidity54%
Visibility—
Dew point68°
Mon, 1789° / 68°0Clear
MorningClear74°feels 76°
AfternoonClear87°feels 89°
EveningClear78°feels 78°
OvernightClear71°feels 72°
89 °Clear

Alton, Monday, 17 August

Clear. High 89°, low 68°.

Pressure30.03 inHg
Wind6.6 mph NW
Humidity47%
Visibility—
Dew point63°
Tue, 1889° / 67°0Clear
MorningClear73°feels 74°
AfternoonClear87°feels 88°
EveningClear77°feels 78°
OvernightClear71°feels 72°
89 °Clear

Alton, Tuesday, 18 August

Clear. High 89°, low 67°.

Pressure30.00 inHg
Wind5.1 mph NE
Humidity44%
Visibility—
Dew point61°

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, IN 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.