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As of 19:05 EDT

Weather in Alton, FL

81°Current weather

Alton, Saturday, 8 August, 19:05

Overcast. Feels like 87°. High 89°, low 76°.

Pressure30.03 inHg
Wind2.5 mph S
Humidity81%
Visibility6.2 mi
Dew point74°
Sun, 0991° / 74°0.9Heavy rain
91 °Heavy rain

Alton, Sunday, 9 August

Heavy rain. High 91°, low 74°.

Pressure30.12 inHg
Wind1.7 mph S
Humidity54%
Visibility6.2 mi
Dew point73°
Mon, 1096° / 75°0.04Light rain
96 °Light rain

Alton, Monday, 10 August

Light rain. High 96°, low 75°.

Pressure30.15 inHg
Wind0.4 mph E
Humidity54%
Visibility6.2 mi
Dew point73°
Tue, 1198° / 77°0Mostly clear
98 °Mostly clear

Alton, Tuesday, 11 August

Mostly clear. High 98°, low 77°.

Pressure30.12 inHg
Wind3.4 mph NW
Humidity48%
Visibility6.2 mi
Dew point71°
Wed, 1297° / 77°0Clear
97 °Clear

Alton, Wednesday, 12 August

Clear. High 97°, low 77°.

Pressure30.06 inHg
Wind6.3 mph NW
Humidity46%
Visibility6.2 mi
Dew point68°
Thu, 1396° / 77°0Clear
96 °Clear

Alton, Thursday, 13 August

Clear. High 96°, low 77°.

Pressure30.03 inHg
Wind10.9 mph SW
Humidity37%
Visibility—
Dew point63°
Fri, 1496° / 76°0Clear
96 °Clear

Alton, Friday, 14 August

Clear. High 96°, low 76°.

Pressure30.09 inHg
Wind11.3 mph SW
Humidity32%
Visibility—
Dew point59°
Sat, 1598° / 77°0.42Rain
98 °Rain

Alton, Saturday, 15 August

Rain. High 98°, low 77°.

Pressure30.12 inHg
Wind5.4 mph W
Humidity38%
Visibility—
Dew point66°
Sun, 1695° / 75°0.07Light rain
95 °Light rain

Alton, Sunday, 16 August

Light rain. High 95°, low 75°.

Pressure30.15 inHg
Wind10.4 mph W
Humidity41%
Visibility—
Dew point65°
Mon, 1793° / 75°0.24Rain
93 °Rain

Alton, Monday, 17 August

Rain. High 93°, low 75°.

Pressure30.12 inHg
Wind7.2 mph NE
Humidity48%
Visibility—
Dew point68°
Tue, 1896° / 74°0Partly cloudy
96 °Partly cloudy

Alton, Tuesday, 18 August

Partly cloudy. High 96°, low 74°.

Pressure30.06 inHg
Wind8.3 mph SW
Humidity38%
Visibility—
Dew point64°
Wed, 1991° / 76°0.1Light rain
91 °Light rain

Alton, Wednesday, 19 August

Light rain. High 91°, low 76°.

Pressure29.97 inHg
Wind12.9 mph W
Humidity43%
Visibility—
Dew point64°
Thu, 2092° / 76°0.45Rain
92 °Rain

Alton, Thursday, 20 August

Rain. High 92°, low 76°.

Pressure29.97 inHg
Wind10.3 mph SW
Humidity63%
Visibility—
Dew point73°
Fri, 2194° / 77°0Light rain
94 °Light rain

Alton, Friday, 21 August

Light rain. High 94°, low 77°.

Pressure29.94 inHg
Wind11.7 mph W
Humidity46%
Visibility—
Dew point68°
Sat, 2294° / 76°0.23Rain
94 °Rain

Alton, Saturday, 22 August

Rain. High 94°, low 76°.

Pressure29.91 inHg
Wind10.9 mph SW
Humidity48%
Visibility—
Dew point69°
Sun, 2395° / 73°0.32Light rain
95 °Light rain

Alton, Sunday, 23 August

Light rain. High 95°, low 73°.

Pressure29.91 inHg
Wind8.4 mph SW
Humidity46%
Visibility—
Dew point68°

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 Alton, FL 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 Alton, FL 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.