Johnston weather — 10-day forecast

Temperature, rain, wind and feels-like in Johnston, hour by hour and over 10 days, with the seasonal normal for context.

Now

Reading from 04:00 · NOAA HRRR model

5 °C

Mainly clear

Feels like 2 °C

9.4 km/hforce 2

Next 12 h

  • 045°
  • 055°14 %
  • 065°
  • 075°12 %
  • 07:05Sunrise
  • 086°
  • 0910°
  • 1013°
  • 1115°
  • 1216°
  • 1317°
  • 1417°
  • 1516°
  • 1616°

↓ 5°07:00↑ 17°13:00

Humidity
96 %
Dew point
4 °C
Gusts
18.4 km/h
Clouds
25 %
Pressure
1,022 hPa

Grid point 1.2 km away · 3.0 km grid · elevation 61 m

Air quality

The European air-quality index for the city, and the pollutants that set it.

Reading from 02:00
19
Good

Index set by PM2.5

PM2.5
9.4µg/m³
PM10
11.2µg/m³
Ozone
36.6µg/m³
Nitrogen dioxide
14.7µg/m³
Sulphur dioxide
1.4µg/m³
Carbon monoxide
182.0µg/m³
Dust (AOD)
0.00

Generated using Copernicus Atmosphere Monitoring Service information

Hour by hour

Step-by-step detail: temperature, wind, cloud cover and ultraviolet.

Estimated from a deterministic model, not an ensemble probability.
°C

9 days

Each day's extremes and the chance of rain, out to the end of the run.

-2° → 23°

Rain probability (> 1 mm): 50 ECMWF ensemble members.

  • Today

    Clear sky

    17°

    5°

  • Wed

    Overcast14 %

    10°

    6°

  • Thu

    Mainly clear14 %

    19°

    7°

  • Fri

    Clear sky14 %

    11°

    1°

  • Sat

    Clear sky14 %

    14°

    -2°

  • Sun

    Clear sky

    20°

    1°

  • Mon

    Mainly clear

    23°

    8°

  • Tue

    Partly cloudy

    16°

    5°

  • Wed

    Light drizzle1 mm

    11°

    7°

Sun and UV

Sunrise, sunset, day length and ultraviolet intensity.

Max UV4moderate
Sunrise
07:05
Daylight
10 h 52
Sunset
17:57

Radiation · 14.6 MJ/m²

Sea state

Sea state at the marine grid point closest to the city.

0.7 mperiod 10 s 95°

Significant height: the mean of the highest third of waves. Individual waves reach about twice it.

Data: ECMWF

Today in Johnston the mean temperature will be 9.8 °C — -1.6 °C against the normal for 20 October, measured from 1940 to 2026. (1,290 obs.)

Johnston climate — normals and trends →