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As of 15:22 CDT

Weather in Herndon, AR

90°Current weather

Herndon, Saturday, 8 August, 15:22

Overcast. Feels like 94°. High 90°, low 73°.

Pressure30.03 inHg
Wind6.4 mph SW
Humidity49%
Visibility6.2 mi
Dew point69°
Sun, 0993° / 71°0Partly cloudy
93 °Partly cloudy

Herndon, Sunday, 9 August

Partly cloudy. High 93°, low 71°.

Pressure30.03 inHg
Wind9 mph S
Humidity56%
Visibility6.2 mi
Dew point70°
Mon, 1095° / 74°0Clear
95 °Clear

Herndon, Monday, 10 August

Clear. High 95°, low 74°.

Pressure30.03 inHg
Wind13.7 mph SW
Humidity51%
Visibility6.2 mi
Dew point71°
Tue, 1197° / 76°0Partly cloudy
97 °Partly cloudy

Herndon, Tuesday, 11 August

Partly cloudy. High 97°, low 76°.

Pressure30.00 inHg
Wind15.6 mph SW
Humidity50%
Visibility6.2 mi
Dew point71°
Wed, 1293° / 73°0.02Light rain
93 °Light rain

Herndon, Wednesday, 12 August

Light rain. High 93°, low 73°.

Pressure29.88 inHg
Wind13.2 mph SW
Humidity49%
Visibility6.2 mi
Dew point71°
Thu, 1397° / 73°0.08Light rain
97 °Light rain

Herndon, Thursday, 13 August

Light rain. High 97°, low 73°.

Pressure29.85 inHg
Wind13.3 mph SW
Humidity40%
Visibility—
Dew point66°
Fri, 1485° / 73°0.14Light rain
85 °Light rain

Herndon, Friday, 14 August

Light rain. High 85°, low 73°.

Pressure30.06 inHg
Wind8.9 mph NE
Humidity64%
Visibility—
Dew point70°
Sat, 1581° / 69°0Overcast
81 °Overcast

Herndon, Saturday, 15 August

Overcast. High 81°, low 69°.

Pressure30.24 inHg
Wind10.4 mph NE
Humidity69%
Visibility—
Dew point64°
Sun, 1682° / 68°0.47Rain
82 °Rain

Herndon, Sunday, 16 August

Rain. High 82°, low 68°.

Pressure30.21 inHg
Wind7.5 mph S
Humidity92%
Visibility—
Dew point69°
Mon, 1792° / 73°0.08Light rain
92 °Light rain

Herndon, Monday, 17 August

Light rain. High 92°, low 73°.

Pressure30.00 inHg
Wind17.2 mph SW
Humidity56%
Visibility—
Dew point70°
Tue, 1899° / 76°0.02Light rain
99 °Light rain

Herndon, Tuesday, 18 August

Light rain. High 99°, low 76°.

Pressure29.94 inHg
Wind12.1 mph S
Humidity45%
Visibility—
Dew point68°
Wed, 1997° / 76°0.06Light rain
97 °Light rain

Herndon, Wednesday, 19 August

Light rain. High 97°, low 76°.

Pressure29.91 inHg
Wind12.3 mph SW
Humidity51%
Visibility—
Dew point70°
Thu, 2092° / 72°0.31Rain
92 °Rain

Herndon, Thursday, 20 August

Rain. High 92°, low 72°.

Pressure29.88 inHg
Wind8.7 mph S
Humidity60%
Visibility—
Dew point69°
Fri, 2194° / 74°0.63Rain
94 °Rain

Herndon, Friday, 21 August

Rain. High 94°, low 74°.

Pressure29.85 inHg
Wind10 mph NE
Humidity59%
Visibility—
Dew point71°
Sat, 2286° / 73°0.21Light rain
86 °Light rain

Herndon, Saturday, 22 August

Light rain. High 86°, low 73°.

Pressure29.91 inHg
Wind7.2 mph NE
Humidity70%
Visibility—
Dew point71°
Sun, 2385° / 69°0.06Light rain
85 °Light rain

Herndon, Sunday, 23 August

Light rain. High 85°, low 69°.

Pressure30.00 inHg
Wind13.5 mph NE
Humidity59%
Visibility—
Dew point65°

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 Herndon, AR 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 Herndon, AR 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.