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As of 05:07 EDT

Weather in Williston, MD

43°Current weather

Williston, Monday, 19 October, 05:07

Clear. Feels like 39°. High 65°, low 41°.

Pressure30.45 inHg
Wind6.9 mph N
Humidity87%
Visibility6.2 mi
Dew point38°
Tue, 2068° / 48°0Clear
68 °Clear

Williston, Tuesday, 20 October

Clear. High 68°, low 48°.

Pressure30.21 inHg
Wind10.9 mph N
Humidity51%
Visibility6.2 mi
Dew point44°
Wed, 2161° / 45°0Clear
61 °Clear

Williston, Wednesday, 21 October

Clear. High 61°, low 45°.

Pressure30.24 inHg
Wind9.1 mph N
Humidity55%
Visibility6.2 mi
Dew point42°
Thu, 2263° / 45°0Clear
63 °Clear

Williston, Thursday, 22 October

Clear. High 63°, low 45°.

Pressure30.09 inHg
Wind8.6 mph N
Humidity48%
Visibility6.2 mi
Dew point40°
Fri, 2356° / 43°0Clear
56 °Clear

Williston, Friday, 23 October

Clear. High 56°, low 43°.

Pressure30.33 inHg
Wind10.6 mph N
Humidity51%
Visibility—
Dew point33°
Sat, 2455° / 40°0Clear
55 °Clear

Williston, Saturday, 24 October

Clear. High 55°, low 40°.

Pressure30.56 inHg
Wind8.2 mph NE
Humidity53%
Visibility—
Dew point33°
Sun, 2564° / 45°0Clear
64 °Clear

Williston, Sunday, 25 October

Clear. High 64°, low 45°.

Pressure30.59 inHg
Wind6.4 mph NE
Humidity56%
Visibility—
Dew point42°
Mon, 2668° / 49°0Overcast
68 °Overcast

Williston, Monday, 26 October

Overcast. High 68°, low 49°.

Pressure30.36 inHg
Wind7.4 mph SW
Humidity58%
Visibility—
Dew point45°
Tue, 2772° / 53°0Overcast
72 °Overcast

Williston, Tuesday, 27 October

Overcast. High 72°, low 53°.

Pressure30.24 inHg
Wind7.3 mph W
Humidity56%
Visibility—
Dew point49°
Wed, 2869° / 50°0Overcast
69 °Overcast

Williston, Wednesday, 28 October

Overcast. High 69°, low 50°.

Pressure30.03 inHg
Wind15 mph N
Humidity51%
Visibility—
Dew point45°
Thu, 2950° / 38°0Overcast
50 °Overcast

Williston, Thursday, 29 October

Overcast. High 50°, low 38°.

Pressure30.27 inHg
Wind13.6 mph N
Humidity43%
Visibility—
Dew point24°
Fri, 3051° / 33°0Clear
51 °Clear

Williston, Friday, 30 October

Clear. High 51°, low 33°.

Pressure30.30 inHg
Wind13.9 mph N
Humidity29%
Visibility—
Dew point14°
Sat, 3151° / 32°0Clear
51 °Clear

Williston, Saturday, 31 October

Clear. High 51°, low 32°.

Pressure30.59 inHg
Wind12.8 mph NE
Humidity32%
Visibility—
Dew point16°
Sun, 0156° / 34°0Clear
56 °Clear

Williston, Sunday, 1 November

Clear. High 56°, low 34°.

Pressure30.59 inHg
Wind7.3 mph N
Humidity34%
Visibility—
Dew point21°
Mon, 0262° / 39°0Overcast
62 °Overcast

Williston, Monday, 2 November

Overcast. High 62°, low 39°.

Pressure30.47 inHg
Wind5.3 mph NW
Humidity39%
Visibility—
Dew point28°
Tue, 0363° / 43°0Partly cloudy
63 °Partly cloudy

Williston, Tuesday, 3 November

Partly cloudy. High 63°, low 43°.

Pressure30.36 inHg
Wind4.3 mph W
Humidity38%
Visibility—
Dew point31°

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.