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As of 18:40 EDT

Weather in Costen, MD

85°Current weather

Costen, Saturday, 8 August, 18:40

Partly cloudy. Feels like 91°. High 90°, low 74°.

Pressure29.97 inHg
Wind8.6 mph S
Humidity68%
Visibility6.2 mi
Dew point73°
Sun, 0991° / 74°0Overcast
91 °Overcast

Costen, Sunday, 9 August

Overcast. High 91°, low 74°.

Pressure30.03 inHg
Wind6.4 mph W
Humidity58%
Visibility6.2 mi
Dew point70°
Mon, 1093° / 77°0Overcast
93 °Overcast

Costen, Monday, 10 August

Overcast. High 93°, low 77°.

Pressure30.03 inHg
Wind7.5 mph SW
Humidity53%
Visibility6.2 mi
Dew point68°
Tue, 1190° / 73°0Overcast
90 °Overcast

Costen, Tuesday, 11 August

Overcast. High 90°, low 73°.

Pressure29.94 inHg
Wind10.4 mph NW
Humidity49%
Visibility6.2 mi
Dew point67°
Wed, 1287° / 75°0.02Light rain
87 °Light rain

Costen, Wednesday, 12 August

Light rain. High 87°, low 75°.

Pressure29.80 inHg
Wind6.2 mph W
Humidity47%
Visibility6.2 mi
Dew point67°
Thu, 1390° / 75°0.05Light rain
90 °Light rain

Costen, Thursday, 13 August

Light rain. High 90°, low 75°.

Pressure29.80 inHg
Wind11.7 mph W
Humidity47%
Visibility—
Dew point65°
Fri, 1471° / 64°0.54Rain
71 °Rain

Costen, Friday, 14 August

Rain. High 71°, low 64°.

Pressure30.00 inHg
Wind9.8 mph NE
Humidity92%
Visibility—
Dew point62°
Sat, 1577° / 60°0Clear
77 °Clear

Costen, Saturday, 15 August

Clear. High 77°, low 60°.

Pressure30.18 inHg
Wind12 mph NW
Humidity39%
Visibility—
Dew point48°
Sun, 1680° / 61°0Clear
80 °Clear

Costen, Sunday, 16 August

Clear. High 80°, low 61°.

Pressure30.27 inHg
Wind7 mph SE
Humidity36%
Visibility—
Dew point49°
Mon, 1781° / 66°0Partly cloudy
81 °Partly cloudy

Costen, Monday, 17 August

Partly cloudy. High 81°, low 66°.

Pressure30.18 inHg
Wind12.9 mph S
Humidity52%
Visibility—
Dew point60°
Tue, 1879° / 71°0.3Rain
79 °Rain

Costen, Tuesday, 18 August

Rain. High 79°, low 71°.

Pressure30.00 inHg
Wind16.7 mph SW
Humidity67%
Visibility—
Dew point67°
Wed, 1984° / 72°0.22Light rain
84 °Light rain

Costen, Wednesday, 19 August

Light rain. High 84°, low 72°.

Pressure29.88 inHg
Wind13.4 mph SW
Humidity59%
Visibility—
Dew point67°
Thu, 2084° / 67°0Overcast
84 °Overcast

Costen, Thursday, 20 August

Overcast. High 84°, low 67°.

Pressure29.97 inHg
Wind6.4 mph SE
Humidity41%
Visibility—
Dew point56°
Fri, 2176° / 71°0.59Rain
76 °Rain

Costen, Friday, 21 August

Rain. High 76°, low 71°.

Pressure29.91 inHg
Wind11.2 mph S
Humidity86%
Visibility—
Dew point71°
Sat, 2285° / 72°0.03Light rain
85 °Light rain

Costen, Saturday, 22 August

Light rain. High 85°, low 72°.

Pressure29.77 inHg
Wind11.3 mph NW
Humidity56%
Visibility—
Dew point65°
Sun, 2375° / 61°0Overcast
75 °Overcast

Costen, Sunday, 23 August

Overcast. High 75°, low 61°.

Pressure30.03 inHg
Wind15.4 mph N
Humidity30%
Visibility—
Dew point40°

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 Costen, 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 Costen, 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.