As of 17:21 EDT

Weather in Perth, IN

89°Current weather

Perth, Saturday, 8 August, 17:21

Clear. Feels like 101°. High 89°, low 72°.

Pressure30.00 inHg
Wind8.9 mph SW
Humidity67%
Visibility6.2 mi
Dew point77°
Sun, 0991° / 72°0Clear
91 °Clear

Perth, Sunday, 9 August

Clear. High 91°, low 72°.

Pressure30.00 inHg
Wind11.8 mph S
Humidity76%
Visibility6.2 mi
Dew point75°
Mon, 1090° / 75°0Partly cloudy
90 °Partly cloudy

Perth, Monday, 10 August

Partly cloudy. High 90°, low 75°.

Pressure29.97 inHg
Wind12.7 mph SW
Humidity71%
Visibility6.2 mi
Dew point74°
Tue, 1191° / 74°0.02Light rain
91 °Light rain

Perth, Tuesday, 11 August

Light rain. High 91°, low 74°.

Pressure29.88 inHg
Wind13.7 mph SW
Humidity67%
Visibility6.2 mi
Dew point73°
Wed, 1287° / 69°0.13Light rain
87 °Light rain

Perth, Wednesday, 12 August

Light rain. High 87°, low 69°.

Pressure29.83 inHg
Wind3.8 mph NW
Humidity76%
Visibility6.2 mi
Dew point75°
Thu, 1376° / 66°0.48Rain
76 °Rain

Perth, Thursday, 13 August

Rain. High 76°, low 66°.

Pressure29.88 inHg
Wind9.9 mph NE
Humidity92%
Visibility
Dew point72°
Fri, 1473° / 58°0.02Light rain
73 °Light rain

Perth, Friday, 14 August

Light rain. High 73°, low 58°.

Pressure30.15 inHg
Wind11.9 mph NE
Humidity57%
Visibility
Dew point55°
Sat, 1575° / 53°0Mostly clear
75 °Mostly clear

Perth, Saturday, 15 August

Mostly clear. High 75°, low 53°.

Pressure30.30 inHg
Wind7.1 mph E
Humidity55%
Visibility
Dew point54°
Sun, 1678° / 57°0Partly cloudy
78 °Partly cloudy

Perth, Sunday, 16 August

Partly cloudy. High 78°, low 57°.

Pressure30.24 inHg
Wind7.5 mph S
Humidity58%
Visibility
Dew point58°
Mon, 1780° / 64°0.25Rain
80 °Rain

Perth, Monday, 17 August

Rain. High 80°, low 64°.

Pressure30.00 inHg
Wind10.2 mph S
Humidity84%
Visibility
Dew point71°
Tue, 1883° / 71°0.07Light rain
83 °Light rain

Perth, Tuesday, 18 August

Light rain. High 83°, low 71°.

Pressure29.97 inHg
Wind9.8 mph NE
Humidity76%
Visibility
Dew point72°
Wed, 1985° / 68°0Partly cloudy
85 °Partly cloudy

Perth, Wednesday, 19 August

Partly cloudy. High 85°, low 68°.

Pressure29.94 inHg
Wind6.4 mph SE
Humidity64%
Visibility
Dew point68°
Thu, 2083° / 70°0.28Light rain
83 °Light rain

Perth, Thursday, 20 August

Light rain. High 83°, low 70°.

Pressure29.85 inHg
Wind7.3 mph W
Humidity66%
Visibility
Dew point69°
Fri, 2180° / 65°0Overcast
80 °Overcast

Perth, Friday, 21 August

Overcast. High 80°, low 65°.

Pressure29.91 inHg
Wind11.2 mph NE
Humidity64%
Visibility
Dew point64°
Sat, 2283° / 63°0.01Light rain
83 °Light rain

Perth, Saturday, 22 August

Light rain. High 83°, low 63°.

Pressure29.91 inHg
Wind15.2 mph NE
Humidity57%
Visibility
Dew point63°
Sun, 2370° / 53°0Mostly clear
70 °Mostly clear

Perth, Sunday, 23 August

Mostly clear. High 70°, low 53°.

Pressure30.18 inHg
Wind13.2 mph E
Humidity51%
Visibility
Dew point48°

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 Perth, IN 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 Perth, IN 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.