As of 15:45 EDT

Weather in Merrimac, VA

86°Current weather

Merrimac, Saturday, 8 August, 15:45

Overcast. Feels like 94°. High 86°, low 66°.

Pressure30.09 inHg
Wind9.4 mph SW
Humidity67%
Visibility6.2 mi
Dew point74°
Sun, 0990° / 67°0.06Light rain
90 °Light rain

Merrimac, Sunday, 9 August

Light rain. High 90°, low 67°.

Pressure30.12 inHg
Wind3.8 mph W
Humidity51%
Visibility6.2 mi
Dew point65°
Mon, 1091° / 67°0.04Light rain
91 °Light rain

Merrimac, Monday, 10 August

Light rain. High 91°, low 67°.

Pressure30.12 inHg
Wind6 mph NW
Humidity50%
Visibility6.2 mi
Dew point64°
Tue, 1192° / 64°0.04Light rain
92 °Light rain

Merrimac, Tuesday, 11 August

Light rain. High 92°, low 64°.

Pressure30.06 inHg
Wind8 mph W
Humidity54%
Visibility6.2 mi
Dew point65°
Wed, 1290° / 64°0.66Heavy rain
90 °Heavy rain

Merrimac, Wednesday, 12 August

Heavy rain. High 90°, low 64°.

Pressure29.91 inHg
Wind7.2 mph SW
Humidity93%
Visibility6.2 mi
Dew point67°
Thu, 1387° / 64°0.52Rain
87 °Rain

Merrimac, Thursday, 13 August

Rain. High 87°, low 64°.

Pressure29.88 inHg
Wind10 mph W
Humidity37%
Visibility
Dew point55°
Fri, 1469° / 61°0.83Rain
69 °Rain

Merrimac, Friday, 14 August

Rain. High 69°, low 61°.

Pressure30.00 inHg
Wind3.6 mph W
Humidity98%
Visibility
Dew point67°
Sat, 1576° / 53°0Overcast
76 °Overcast

Merrimac, Saturday, 15 August

Overcast. High 76°, low 53°.

Pressure30.21 inHg
Wind6.7 mph NW
Humidity37%
Visibility
Dew point45°
Sun, 1673° / 52°0Overcast
73 °Overcast

Merrimac, Sunday, 16 August

Overcast. High 73°, low 52°.

Pressure30.27 inHg
Wind6.4 mph SE
Humidity55%
Visibility
Dew point54°
Mon, 1786° / 59°0Partly cloudy
86 °Partly cloudy

Merrimac, Monday, 17 August

Partly cloudy. High 86°, low 59°.

Pressure30.12 inHg
Wind7.2 mph SW
Humidity36%
Visibility
Dew point53°
Tue, 1875° / 66°0.48Rain
75 °Rain

Merrimac, Tuesday, 18 August

Rain. High 75°, low 66°.

Pressure30.00 inHg
Wind7.6 mph SW
Humidity87%
Visibility
Dew point70°
Wed, 1985° / 64°0Clear
85 °Clear

Merrimac, Wednesday, 19 August

Clear. High 85°, low 64°.

Pressure29.91 inHg
Wind9.4 mph NW
Humidity40%
Visibility
Dew point56°
Thu, 2087° / 60°0.09Light rain
87 °Light rain

Merrimac, Thursday, 20 August

Light rain. High 87°, low 60°.

Pressure29.94 inHg
Wind5 mph W
Humidity40%
Visibility
Dew point57°
Fri, 2180° / 67°0.28Rain
80 °Rain

Merrimac, Friday, 21 August

Rain. High 80°, low 67°.

Pressure29.85 inHg
Wind9.7 mph NW
Humidity70%
Visibility
Dew point66°
Sat, 2282° / 64°0Overcast
82 °Overcast

Merrimac, Saturday, 22 August

Overcast. High 82°, low 64°.

Pressure29.85 inHg
Wind8.8 mph NW
Humidity52%
Visibility
Dew point60°
Sun, 2380° / 59°0Overcast
80 °Overcast

Merrimac, Sunday, 23 August

Overcast. High 80°, low 59°.

Pressure30.00 inHg
Wind5.3 mph N
Humidity41%
Visibility
Dew point51°

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 Merrimac, VA 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 Merrimac, VA 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.