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As of 06:28 EDT

Weather in Williston, MD

59°Current weather

Williston, Monday, 12 October, 06:28

Overcast. Feels like 60°. High 73°, low 59°.

Pressure29.74 inHg
Wind11.5 mph N
Humidity100%
Visibility1.9 mi
Dew point59°
Tue, 1379° / 58°0Clear
79 °Clear

Williston, Tuesday, 13 October

Clear. High 79°, low 58°.

Pressure29.97 inHg
Wind6.9 mph SW
Humidity66%
Visibility6.2 mi
Dew point64°
Wed, 1482° / 67°0.02Light rain
82 °Light rain

Williston, Wednesday, 14 October

Light rain. High 82°, low 67°.

Pressure29.94 inHg
Wind9.6 mph W
Humidity61%
Visibility6.2 mi
Dew point65°
Thu, 1571° / 57°0Clear
71 °Clear

Williston, Thursday, 15 October

Clear. High 71°, low 57°.

Pressure30.21 inHg
Wind7.7 mph N
Humidity54%
Visibility6.2 mi
Dew point49°
Fri, 1677° / 59°0.08Light rain
77 °Light rain

Williston, Friday, 16 October

Light rain. High 77°, low 59°.

Pressure29.74 inHg
Wind22.6 mph NW
Humidity78%
Visibility—
Dew point63°
Sat, 1758° / 43°0Clear
58 °Clear

Williston, Saturday, 17 October

Clear. High 58°, low 43°.

Pressure30.27 inHg
Wind21 mph NW
Humidity46%
Visibility—
Dew point34°
Sun, 1854° / 35°0Mostly clear
54 °Mostly clear

Williston, Sunday, 18 October

Mostly clear. High 54°, low 35°.

Pressure30.62 inHg
Wind6.6 mph S
Humidity37%
Visibility—
Dew point21°
Mon, 1965° / 42°0Clear
65 °Clear

Williston, Monday, 19 October

Clear. High 65°, low 42°.

Pressure30.53 inHg
Wind9.5 mph SW
Humidity52%
Visibility—
Dew point39°
Tue, 2068° / 52°0Overcast
68 °Overcast

Williston, Tuesday, 20 October

Overcast. High 68°, low 52°.

Pressure30.36 inHg
Wind8.5 mph W
Humidity65%
Visibility—
Dew point51°
Wed, 2165° / 51°0Clear
65 °Clear

Williston, Wednesday, 21 October

Clear. High 65°, low 51°.

Pressure30.39 inHg
Wind12 mph NE
Humidity67%
Visibility—
Dew point51°
Thu, 2264° / 49°0Clear
64 °Clear

Williston, Thursday, 22 October

Clear. High 64°, low 49°.

Pressure30.56 inHg
Wind9.2 mph E
Humidity54%
Visibility—
Dew point43°
Fri, 2369° / 49°0Partly cloudy
69 °Partly cloudy

Williston, Friday, 23 October

Partly cloudy. High 69°, low 49°.

Pressure30.36 inHg
Wind13.5 mph SW
Humidity63%
Visibility—
Dew point49°
Sat, 2461° / 44°0.01Light rain
61 °Light rain

Williston, Saturday, 24 October

Light rain. High 61°, low 44°.

Pressure30.27 inHg
Wind18.6 mph NW
Humidity57%
Visibility—
Dew point42°
Sun, 2557° / 36°0Mostly clear
57 °Mostly clear

Williston, Sunday, 25 October

Mostly clear. High 57°, low 36°.

Pressure30.33 inHg
Wind5.9 mph N
Humidity39%
Visibility—
Dew point25°
Mon, 2660° / 51°0.06Light rain
60 °Light rain

Williston, Monday, 26 October

Light rain. High 60°, low 51°.

Pressure29.83 inHg
Wind14.5 mph SW
Humidity60%
Visibility—
Dew point43°
Tue, 2759° / 48°0Overcast
59 °Overcast

Williston, Tuesday, 27 October

Overcast. High 59°, low 48°.

Pressure30.00 inHg
Wind10.6 mph N
Humidity58%
Visibility—
Dew point38°

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 Williston, MD 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 Williston, MD 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.