Today
Mostly cloudy throughout the day, high +54°, low +50°. Wind gusts reach 15 mph. The day promises to be dry.
Weather in Charlestown
United States · Massachusetts · 42.3779, -71.0620
Today Now 2:45 PM
+54° Mostly cloudy
Hourly forecast
Today10/21
Temperature°F
Cloudiness
Precipitation
Windmph
Wind gusts
Humidity
PressureinHg
Dew point°F
Visibilitymi
UV index
Forecast in words
Tomorrow
Tomorrow partly cloudy, high +59°, low +48° — 5° warmer than today.
Week
Seven days ahead fall within +39°…+64°. Peak warmth: Mon, +64°. Coldest at night — Sat, +39°. No precipitation expected this week. Sunshine expected on 4 of seven days.
Week vs norm
- Today 10/21 +54° −5° usually +59°
- Tomorrow 10/22 +59° as usual usually +58°
- Fri 10/23 +52° −6° usually +58°
- Sat 10/24 +55° −2° usually +58°
- Sun 10/25 +61° +4° usually +57°
- Mon 10/26 +64° +8° usually +57°
- Tue 10/27 +55° −1° usually +56°
- Wed 10/28 +52° −4° usually +56°
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, October 21
Today is cooler than usual for this date.
- Heat record +77° 2024
- Cold record +34° 1991
- Most precipitation 2.1 in 1996
- Strongest gust 49 mph 1995
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in Charlestown
Today is about 8° colder than usual for October.
| Month | Daytime / Nighttime | Average | Precipitation in |
|---|---|---|---|
| Jan | +34° / +22° | +27° | 3.6 |
| Feb | +36° / +23° | +29° | 3.2 |
| Mar | +43° / +30° | +36° | 4.4 |
| Apr | +54° / +41° | +47° | 3.9 |
| May | +64° / +51° | +57° | 3.3 |
| Jun | +74° / +61° | +67° | 3.4 |
| Jul | +80° / +67° | +73° | 3.2 |
| Aug | +78° / +66° | +72° | 3.5 |
| Sep | +71° / +59° | +65° | 3.5 |
| Oct | +61° / +48° | +54° | 4.0 |
| Nov | +49° / +38° | +43° | 3.4 |
| Dec | +40° / +28° | +33° | 4.4 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
7:04 AM | 5:52 PM
Moon
3:40 PM | 1:52 AM
Moon phase
Waxing gibbous 78%
Next solar eclipse
Calculating for this city…