Today
Mostly cloudy throughout the day, high +48°, low +48°. Wind gusts reach 4 mph. No rain expected.
Weather in Iwanai
Japan · Hokkaido · 42.9744, 140.5089
Today Now 8:24 PM
+48° Partly cloudy
Hourly forecast
Today10/20
Temperature°F
Cloudiness
Precipitation
Windmph
Wind gusts
Humidity
PressureinHg
Dew point°F
Visibilitymi
UV index
Forecast in words
Tomorrow
Tomorrow rain, high +59°, low +46° — 11° warmer than today.
Week
This week temperatures range from +34° to +59°. Weekly maximum — +59° (Wed). Coldest at night — Tue, +34°. Days with precipitation — Wed, Thu, Tue. Windiest day — Wed (20 mph).
Week vs norm
- Today 10/20 +48° −5° usually +53°
- Tomorrow 10/21 +59° +7° usually +52°
- Thu 10/22 +45° −7° usually +52°
- Fri 10/23 +54° +2° usually +52°
- Sat 10/24 +57° +6° usually +51°
- Sun 10/25 +55° +5° usually +51°
- Mon 10/26 +48° −2° usually +50°
- Tue 10/27 +45° −5° usually +50°
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, October 20
Today is cooler than usual for this date.
- Heat record +65° 2008
- Cold record +38° 2016
- Most precipitation 1.4 in 2021
- Strongest gust 54 mph 2009
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in Iwanai
Today is about 7° colder than usual for October.
| Month | Daytime / Nighttime | Average | Precipitation in |
|---|---|---|---|
| Jan | +25° / +18° | +21° | 4.3 |
| Feb | +26° / +19° | +23° | 3.6 |
| Mar | +33° / +25° | +29° | 3.4 |
| Apr | +44° / +33° | +38° | 3.0 |
| May | +56° / +45° | +51° | 3.4 |
| Jun | +65° / +55° | +59° | 3.2 |
| Jul | +72° / +63° | +67° | 4.9 |
| Aug | +74° / +65° | +69° | 6.8 |
| Sep | +67° / +57° | +62° | 5.7 |
| Oct | +55° / +45° | +50° | 4.8 |
| Nov | +41° / +33° | +37° | 5.1 |
| Dec | +29° / +21° | +25° | 5.2 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
5:57 AM | 4:47 PM
Moon
1:59 PM | —
Moon phase
Waxing gibbous 64%
Next solar eclipse
Calculating for this city…