As of 21:15 EDT

Weather in Keymar, MD

79°Current weather

Keymar, Saturday, 8 August, 21:15

Partly cloudy. Feels like 79°. High 86°, low 71°.

Pressure29.97 inHg
Wind6.3 mph SW
Humidity82%
Visibility6.2 mi
Dew point73°

Monthly outlook for Keymar, MD: average high 83.4°, average low 64.7°. That is 0.3° below the climate normal for August. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 10 August (92.8°), the coolest 22 August (55.7°).

83.4°/64.7°
Average high / low
−0.3°
Below normal
6 / 6
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August84.6°84.8°-0.1°
18 August – 27 August81.3°83.2°-1.1°
28 August – 6 Septemberat normal82.4°

August records over 66 years

100.8°17 August 1988All-time high
48.7°29 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Frederick (15 mi).

Sun, 0987° / 72°0Partly cloudy
87 °Partly cloudy

Keymar, Sunday, 9 August

Partly cloudy. High 87°, low 72°.

Pressure30.03 inHg
Wind8.4 mph NW
Humidity44%
Visibility6.2 mi
Dew point64°
Mon, 1093° / 72°0.21Rain
93 °Rain

Keymar, Monday, 10 August

Rain. High 93°, low 72°.

Pressure30.03 inHg
Wind10.4 mph W
Humidity47%
Visibility6.2 mi
Dew point64°
Tue, 1188° / 68°0.34Rain
88 °Rain

Keymar, Tuesday, 11 August

Rain. High 88°, low 68°.

Pressure29.97 inHg
Wind9.6 mph W
Humidity58%
Visibility6.2 mi
Dew point65°
Wed, 1290° / 69°0.06Light rain
90 °Light rain

Keymar, Wednesday, 12 August

Light rain. High 90°, low 69°.

Pressure29.77 inHg
Wind7.7 mph W
Humidity62%
Visibility6.2 mi
Dew point66°
Thu, 1383° / 66°0.03Light rain
83 °Light rain

Keymar, Thursday, 13 August

Light rain. High 83°, low 66°.

Pressure29.85 inHg
Wind16.3 mph NW
Humidity31%
Visibility
Dew point48°
Fri, 1478° / 59°0Overcast
78 °Overcast

Keymar, Friday, 14 August

Overcast. High 78°, low 59°.

Pressure30.06 inHg
Wind11.4 mph SW
Humidity36%
Visibility
Dew point47°
Sat, 1582° / 59°0Clear
82 °Clear

Keymar, Saturday, 15 August

Clear. High 82°, low 59°.

Pressure30.18 inHg
Wind11.3 mph N
Humidity31%
Visibility
Dew point45°
Sun, 1683° / 57°0Overcast
83 °Overcast

Keymar, Sunday, 16 August

Overcast. High 83°, low 57°.

Pressure30.18 inHg
Wind6.8 mph NE
Humidity36%
Visibility
Dew point50°
Mon, 1776° / 66°0.03Light rain
76 °Light rain

Keymar, Monday, 17 August

Light rain. High 76°, low 66°.

Pressure30.09 inHg
Wind13.6 mph S
Humidity60%
Visibility
Dew point60°
Tue, 1874° / 65°0.22Rain
74 °Rain

Keymar, Tuesday, 18 August

Rain. High 74°, low 65°.

Pressure30.03 inHg
Wind4.9 mph SE
Humidity81%
Visibility
Dew point65°
Wed, 1986° / 65°0.05Light rain
86 °Light rain

Keymar, Wednesday, 19 August

Light rain. High 86°, low 65°.

Pressure29.88 inHg
Wind11.3 mph S
Humidity60%
Visibility
Dew point64°
Thu, 2079° / 65°0.17Light rain
79 °Light rain

Keymar, Thursday, 20 August

Light rain. High 79°, low 65°.

Pressure29.74 inHg
Wind19.6 mph NW
Humidity41%
Visibility
Dew point52°
Fri, 2181° / 58°0Clear
81 °Clear

Keymar, Friday, 21 August

Clear. High 81°, low 58°.

Pressure29.91 inHg
Wind12.6 mph NW
Humidity32%
Visibility
Dew point45°
Sat, 2282° / 56°0Partly cloudy
82 °Partly cloudy

Keymar, Saturday, 22 August

Partly cloudy. High 82°, low 56°.

Pressure30.06 inHg
Wind7.6 mph S
Humidity31%
Visibility
Dew point45°
Sun, 2386° / 68°0.02Light rain
86 °Light rain

Keymar, Sunday, 23 August

Light rain. High 86°, low 68°.

Pressure29.94 inHg
Wind14.8 mph S
Humidity62%
Visibility
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2483° / 65°0.06Climate normal
83 °Climate normal

Keymar, Monday, 24 August

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0.06 in
Chance of precipitation23%
Record high95° (1968)
Record low54° (1971)
Tue, 2584° / 65°0.05Climate normal
84 °Climate normal

Keymar, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high84°
Average low65°
Average precipitation0.05 in
Chance of precipitation20%
Record high97° (2007)
Record low55° (1971)
Wed, 2684° / 65°0.05Climate normal
84 °Climate normal

Keymar, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high84°
Average low65°
Average precipitation0.05 in
Chance of precipitation22%
Record high95° (1975)
Record low55° (1963)
Thu, 2784° / 66°0.14Climate normal
84 °Climate normal

Keymar, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high84°
Average low66°
Average precipitation0.14 in
Chance of precipitation32%
Record high94° (1993)
Record low54° (2025)
Fri, 2885° / 66°0.13Climate normal
85 °Climate normal

Keymar, Friday, 28 August

Climate normal for this date — 60-year average.

Average high85°
Average low66°
Average precipitation0.13 in
Chance of precipitation37%
Record high96° (1993)
Record low54° (2025)
Sat, 2984° / 66°0.08Climate normal
84 °Climate normal

Keymar, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high84°
Average low66°
Average precipitation0.08 in
Chance of precipitation32%
Record high96° (1973)
Record low49° (1986)
Sun, 3084° / 65°0.05Climate normal
84 °Climate normal

Keymar, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high84°
Average low65°
Average precipitation0.05 in
Chance of precipitation23%
Record high95° (1991)
Record low51° (1986)
Mon, 3183° / 65°0.1Climate normal
83 °Climate normal

Keymar, Monday, 31 August

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0.1 in
Chance of precipitation30%
Record high97° (1973)
Record low52° (1976)
Tue, 0182° / 64°0.11Climate normal
82 °Climate normal

Keymar, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.11 in
Chance of precipitation33%
Record high97° (1973)
Record low53° (1967)
Wed, 0282° / 64°0.11Climate normal
82 °Climate normal

Keymar, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.11 in
Chance of precipitation35%
Record high96° (2010)
Record low53° (1967)
Thu, 0382° / 64°0.08Climate normal
82 °Climate normal

Keymar, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.08 in
Chance of precipitation27%
Record high94° (2010)
Record low49° (1967)
Fri, 0482° / 65°0.09Climate normal
82 °Climate normal

Keymar, Friday, 4 September

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation27%
Record high97° (2023)
Record low53° (2024)
Sat, 0581° / 64°0.11Climate normal
81 °Climate normal

Keymar, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation27%
Record high97° (2023)
Record low51° (1997)
Sun, 0681° / 63°0.25Climate normal
81 °Climate normal

Keymar, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high81°
Average low63°
Average precipitation0.25 in
Chance of precipitation33%
Record high97° (2023)
Record low51° (2000)

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 Keymar, 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 Keymar, 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.