Detailed weather forecast for Västerås, Sweden: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Västerås
today🌧️16°💧 0.5 mm
Sun☁️18°💧 1.2 mm
Mon🌧️14°💧 0.6 mm
Tue🌧️14°💧 2.3 mm
Wed🌧️16°💧 1.9 mm
Thu🌧️13°💧 6.3 mm
Fri🌧️14°💧 2.5 mm
Sat🌧️13°💧 24.5 mm
Forecast vs 1991-2020 climate normal
How does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
NASA POWER
Thursday 10 Sept in Västerås, the forecast high is 13°C. Typical daytime temperatures at this time of year range from 14°C to 20°C, so it will be cooler than usual. It is cooler than 89% of similar days.
16°Ccooler than usual
usually 15°C–21°C
cooler than 73% of similar days
night: near normalrain: typical rainfallwind: typical
18°Cnear normal
usually 15°C–21°C
night: warmer than usualrain: typical rainfallwind: typical
14°Ccooler than usual
usually 15°C–21°C
cooler than 88% of similar days
night: exceptionally warmrain: typical rainfallwind: stronger than usual
14°Ccooler than usual
usually 15°C–21°C
cooler than 88% of similar days
night: warmer than usualrain: more rain than usualwind: typical
16°Cnear normal
usually 15°C–20°C
night: warmer than usualrain: more rain than usualwind: stronger than usual
13°Ccooler than usual
usually 14°C–20°C
cooler than 89% of similar days
night: near normalrain: exceptionally wetwind: stronger than usual
14°Ccooler than usual
usually 14°C–20°C
cooler than 77% of similar days
night: warmer than usualrain: more rain than usualwind: typical
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
From 1981 to 2025, the 5-11 Sept period averaged 18°C by day. The coolest year was 1996 (13°C) and the warmest was 2024 (23°C). The current forecast averages 15°C - lower than in 80% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
Weather warnings - Västerås
No active weather warnings for Västerås (region: Västmanland). The national weather service is not forecasting dangerous conditions.
14-day forecast - Västerås
Västerås 30 & 45-day weather - long-range outlook
Next 16 days · forecast
15°
around 12° at night · days with rain: 6
Weeks 3-4 · avg for September
17°
around 7° at night · rain chance 32%
Weeks 5-7 · avg for October
10°
around 3° at night · rain chance 36%
The 30 & 45-day outlook for Västerås: the next 16 days are a numerical forecast updated daily - on average 15° by day and 12° at night. Further out we rely on multi-year climate averages: around 17° in September, and about 10° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Västerås
Saturday5 September 2026
🌧️16°light rain
sunrise 05:58 · sunset 19:46 · night 10° · evening 17° · rain 0.54 mm · humidity 62% · wind 3 m/s · clouds 100%
Sunday6 September 2026
☁️18°broken clouds
sunrise 06:00 · sunset 19:43 · night 12° · evening 19° · rain 1.17 mm · humidity 48% · wind 4 m/s · clouds 51%
Monday7 September 2026
🌧️14°light rain
sunrise 06:03 · sunset 19:40 · night 13° · evening 15° · rain 0.62 mm · humidity 92% · wind 4 m/s · clouds 100%
Tuesday8 September 2026
🌧️14°light rain
sunrise 06:05 · sunset 19:37 · night 12° · evening 16° · rain 2.28 mm · humidity 93% · wind 4 m/s · clouds 100%
Wednesday9 September 2026
🌧️16°light rain
sunrise 06:07 · sunset 19:34 · night 12° · evening 14° · rain 1.86 mm · humidity 60% · wind 5 m/s · clouds 16%
Thursday10 September 2026
🌧️13°light rain
sunrise 06:09 · sunset 19:31 · night 10° · evening 14° · rain 6.33 mm · humidity 81% · wind 4 m/s · clouds 99%
Friday11 September 2026
🌧️14°light rain
sunrise 06:12 · sunset 19:28 · night 12° · evening 14° · rain 2.49 mm · humidity 72% · wind 3 m/s · clouds 98%
Saturday12 September 2026
🌧️13°moderate rain
sunrise 06:14 · sunset 19:25 · night 13° · evening 13° · rain 24.48 mm · humidity 98% · wind 5 m/s · clouds 100%
Sunday13 September 2026
🌧️11°light rain
sunrise 06:16 · sunset 19:22 · night 10° · evening 15° · rain 0.39 mm · humidity 80% · wind 5 m/s · clouds 97%
Monday14 September 2026
🌧️12°light rain
sunrise 06:19 · sunset 19:19 · night 7° · evening 10° · rain 0.15 mm · humidity 43% · wind 3 m/s · clouds 58%
Tuesday15 September 2026
🌤️13°scattered clouds
sunrise 06:21 · sunset 19:16 · night 12° · evening 16° · rain 0.45 mm · humidity 75% · wind 4 m/s · clouds 33%
Wednesday16 September 2026
☁️15°overcast clouds
sunrise 06:23 · sunset 19:13 · night 12° · evening 17° · rain 0.24 mm · humidity 73% · wind 6 m/s · clouds 100%
Thursday17 September 2026
🌧️17°light rain
sunrise 06:26 · sunset 19:10 · night 13° · evening 18° · rain 0.48 mm · humidity 64% · wind 4 m/s · clouds 68%
Friday18 September 2026
☁️16°overcast clouds
sunrise 06:28 · sunset 19:07 · night 14° · evening 18° · rain 0.39 mm · humidity 65% · wind 4 m/s · clouds 95%
sunrise 06:32 · sunset 19:01 · night 17° · evening 23° · humidity 59% · wind 4 m/s
UV index in Västerås - is it safe to sunbathe?
Today the UV index in Västerås is 4 (moderate) - unprotected fair skin can burn in about 55 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.
Pollen in Västerås - info for allergy sufferers
Today ragweed pollen is highest in Västerås - about 13 grains/m³, moderate level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.
Västerås weather through the year
Warmest, driest months on average: May, June, July, August.
Upcoming public holidays in Sweden: All Saints' Day — 31 October · Christmas Eve — 24 December · Christmas Day — 25 December.