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As of 04:52 EDT

Weather in Williston, MD

59°Current weather

Williston, Saturday, 17 October, 04:52

Rain. Feels like 59°. High 62°, low 47°.

Pressure29.94 inHg
Wind6.9 mph N
Humidity100%
Visibility2.5 mi
Dew point59°
Sun, 1858° / 40°0Clear
58 °Clear

Williston, Sunday, 18 October

Clear. High 58°, low 40°.

Pressure30.56 inHg
Wind9.7 mph NE
Humidity44%
Visibility6.2 mi
Dew point32°
Mon, 1963° / 44°0Partly cloudy
63 °Partly cloudy

Williston, Monday, 19 October

Partly cloudy. High 63°, low 44°.

Pressure30.39 inHg
Wind11.6 mph N
Humidity49%
Visibility6.2 mi
Dew point40°
Tue, 2066° / 50°0Clear
66 °Clear

Williston, Tuesday, 20 October

Clear. High 66°, low 50°.

Pressure30.24 inHg
Wind11.9 mph N
Humidity48%
Visibility6.2 mi
Dew point43°
Wed, 2161° / 48°0Clear
61 °Clear

Williston, Wednesday, 21 October

Clear. High 61°, low 48°.

Pressure30.24 inHg
Wind13.1 mph N
Humidity55%
Visibility—
Dew point39°
Thu, 2262° / 44°0Clear
62 °Clear

Williston, Thursday, 22 October

Clear. High 62°, low 44°.

Pressure30.09 inHg
Wind11.2 mph N
Humidity54%
Visibility—
Dew point37°
Fri, 2363° / 45°0Overcast
63 °Overcast

Williston, Friday, 23 October

Overcast. High 63°, low 45°.

Pressure30.18 inHg
Wind11.5 mph N
Humidity54%
Visibility—
Dew point40°
Sat, 2461° / 43°0Clear
61 °Clear

Williston, Saturday, 24 October

Clear. High 61°, low 43°.

Pressure30.36 inHg
Wind11.2 mph NE
Humidity55%
Visibility—
Dew point39°
Sun, 2563° / 43°0Clear
63 °Clear

Williston, Sunday, 25 October

Clear. High 63°, low 43°.

Pressure30.30 inHg
Wind7.6 mph NW
Humidity49%
Visibility—
Dew point36°
Mon, 2668° / 48°0Overcast
68 °Overcast

Williston, Monday, 26 October

Overcast. High 68°, low 48°.

Pressure30.15 inHg
Wind7.9 mph SW
Humidity53%
Visibility—
Dew point43°
Tue, 2763° / 45°0Mostly clear
63 °Mostly clear

Williston, Tuesday, 27 October

Mostly clear. High 63°, low 45°.

Pressure30.09 inHg
Wind20.9 mph NW
Humidity56%
Visibility—
Dew point46°
Wed, 2855° / 38°0Overcast
55 °Overcast

Williston, Wednesday, 28 October

Overcast. High 55°, low 38°.

Pressure30.45 inHg
Wind11.8 mph N
Humidity38%
Visibility—
Dew point23°
Thu, 2961° / 43°0Overcast
61 °Overcast

Williston, Thursday, 29 October

Overcast. High 61°, low 43°.

Pressure30.09 inHg
Wind19.3 mph W
Humidity53%
Visibility—
Dew point36°
Fri, 3058° / 45°0Overcast
58 °Overcast

Williston, Friday, 30 October

Overcast. High 58°, low 45°.

Pressure29.94 inHg
Wind20 mph NW
Humidity54%
Visibility—
Dew point40°
Sat, 3159° / 38°0Clear
59 °Clear

Williston, Saturday, 31 October

Clear. High 59°, low 38°.

Pressure30.24 inHg
Wind7.1 mph N
Humidity55%
Visibility—
Dew point33°
Sun, 0165° / 44°0Overcast
65 °Overcast

Williston, Sunday, 1 November

Overcast. High 65°, low 44°.

Pressure30.30 inHg
Wind10.4 mph S
Humidity61%
Visibility—
Dew point45°

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.