As of 15:24 EDT

Weather in Ralston, MD

77°

Ralston, Thursday, 8 October, 15:24

Clear. Feels like 76°. High 77°, low 54°.

Pressure29.91 inHg

Wind14 mph NW

Humidity34%

Visibility6.2 mi

Dew point47°

See detailed hourly forecast

Monthly outlook for Ralston, MD: average high 68°, average low 52.4°. That is 2.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 13 October (78.1°), the coolest 18 October (41.4°).

68°/52.4°

Average high / low

+2.3°

Above normal

4 / 4

Wet days / normal

1.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	71°	64.9°	+3.4°
18 October – 27 October	63°	61.1°	+1.1°
28 October – 6 November	at normal	58.3°	—

October records over 66 years

90.7°2 October 2019All-time high

27.1°24 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Reisterstown (7 mi).

Fri, 0976° / 47°

76 °

Ralston, Friday, 9 October

Clear. High 76°, low 47°.

Pressure30.21 inHg

Wind9.5 mph W

Humidity37%

Visibility6.2 mi

Dew point43°

Sat, 1070° / 48°

70 °

Ralston, Saturday, 10 October

Overcast. High 70°, low 48°.

Pressure30.45 inHg

Wind6.8 mph E

Humidity44%

Visibility6.2 mi

Dew point46°

Sun, 1164° / 58°

0.76

64 °

Ralston, Sunday, 11 October

Rain. High 64°, low 58°.

Pressure30.24 inHg

Wind12.9 mph SE

Humidity99%

Visibility1.3 mi

Dew point60°

Mon, 1271° / 62°

0.36

71 °

Ralston, Monday, 12 October

Rain. High 71°, low 62°.

Pressure29.80 inHg

Wind11.2 mph NW

Humidity84%

Visibility6.2 mi

Dew point61°

Tue, 1378° / 60°

0.04

78 °

Ralston, Tuesday, 13 October

Light rain. High 78°, low 60°.

Pressure29.85 inHg

Wind11.1 mph W

Humidity66%

Visibility—

Dew point58°

Wed, 1464° / 52°

64 °

Ralston, Wednesday, 14 October

Clear. High 64°, low 52°.

Pressure30.09 inHg

Wind9.1 mph NW

Humidity51%

Visibility—

Dew point39°

Thu, 1560° / 52°

60 °

Ralston, Thursday, 15 October

Overcast. High 60°, low 52°.

Pressure30.30 inHg

Wind5.8 mph E

Humidity45%

Visibility—

Dew point34°

Fri, 1678° / 55°

78 °

Ralston, Friday, 16 October

Mostly clear. High 78°, low 55°.

Pressure30.21 inHg

Wind9.9 mph S

Humidity64%

Visibility—

Dew point53°

Sat, 1771° / 46°

71 °

Ralston, Saturday, 17 October

Overcast. High 71°, low 46°.

Pressure30.27 inHg

Wind17.4 mph N

Humidity49%

Visibility—

Dew point40°

Sun, 1859° / 41°

59 °

Ralston, Sunday, 18 October

Clear. High 59°, low 41°.

Pressure30.62 inHg

Wind7.4 mph N

Humidity31%

Visibility—

Dew point20°

Mon, 1962° / 47°

62 °

Ralston, Monday, 19 October

Overcast. High 62°, low 47°.

Pressure30.50 inHg

Wind6.3 mph S

Humidity32%

Visibility—

Dew point25°

Tue, 2058° / 53°

58 °

Ralston, Tuesday, 20 October

Overcast. High 58°, low 53°.

Pressure30.33 inHg

Wind4 mph SW

Humidity47%

Visibility—

Dew point36°

Wed, 2157° / 55°

0.1

57 °

Ralston, Wednesday, 21 October

Light rain. High 57°, low 55°.

Pressure30.24 inHg

Wind4.9 mph SW

Humidity74%

Visibility—

Dew point48°

Thu, 2273° / 55°

73 °

Ralston, Thursday, 22 October

Clear. High 73°, low 55°.

Pressure30.18 inHg

Wind8.1 mph S

Humidity65%

Visibility—

Dew point52°

Fri, 2369° / 53°

0.01

69 °

Ralston, Friday, 23 October

Light rain. High 69°, low 53°.

Pressure30.00 inHg

Wind15.3 mph W

Humidity61%

Visibility—

Dew point52°

From day 17 onward the outlook is built from 60-year climate statistics

Sat, 2460° / 46°

0.13

60 °

Ralston, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high60°

Average low46°

Average precipitation0.13 in

Chance of precipitation33%

Record high78° (2001)

Record low27° (1969)

Sun, 2560° / 46°

0.16

60 °

Ralston, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high60°

Average low46°

Average precipitation0.16 in

Chance of precipitation27%

Record high75° (2021)

Record low34° (1962)

Mon, 2660° / 46°

0.13

60 °

Ralston, Monday, 26 October

Climate normal for this date — 60-year average.

Average high60°

Average low46°

Average precipitation0.13 in

Chance of precipitation33%

Record high79° (2023)

Record low31° (1962)

Tue, 2760° / 45°

0.18

60 °

Ralston, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.18 in

Chance of precipitation28%

Record high79° (1963)

Record low31° (1976)

Wed, 2860° / 45°

0.12

60 °

Ralston, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.12 in

Chance of precipitation23%

Record high79° (1984)

Record low28° (1976)

Thu, 2958° / 43°

0.25

58 °

Ralston, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.25 in

Chance of precipitation27%

Record high74° (1984)

Record low29° (1965)

Fri, 3058° / 42°

0.11

58 °

Ralston, Friday, 30 October

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.11 in

Chance of precipitation27%

Record high78° (2016)

Record low29° (2011)

Sat, 3159° / 44°

0.05

59 °

Ralston, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high59°

Average low44°

Average precipitation0.05 in

Chance of precipitation22%

Record high79° (2024)

Record low29° (2011)

Sun, 0160° / 45°

0.07

60 °

Ralston, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.07 in

Chance of precipitation23%

Record high78° (1974)

Record low34° (2002)

Mon, 0260° / 45°

0.13

60 °

Ralston, Monday, 2 November

Climate normal for this date — 60-year average.

Average high60°

Average low45°

Average precipitation0.13 in

Chance of precipitation33%

Record high78° (1971)

Record low31° (1976)

Tue, 0359° / 44°

0.07

59 °

Ralston, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°

Average low44°

Average precipitation0.07 in

Chance of precipitation32%

Record high76° (2003)

Record low31° (1996)

Wed, 0457° / 42°

0.09

57 °

Ralston, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.09 in

Chance of precipitation23%

Record high75° (1974)

Record low29° (2006)

Thu, 0557° / 42°

0.11

57 °

Ralston, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.11 in

Chance of precipitation32%

Record high75° (1961)

Record low26° (1991)

Fri, 0656° / 42°

0.07

56 °

Ralston, Friday, 6 November

Climate normal for this date — 60-year average.

Average high56°

Average low42°

Average precipitation0.07 in

Chance of precipitation25%

Record high79° (2024)

Record low27° (1967)

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 Ralston, 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 Ralston, 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.