Weather in Barnaul - 14-day forecast

Detailed weather forecast for Barnaul, Russia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Barnaul

today🌧️ 14°💧 0.6 mm

Sun🌤️ 22°💧 0.6 mm

Mon🌤️ 24°💧 1.1 mm

Tue☁️ 24°💧 3.4 mm

Wed☀️ 26°💧 0.6 mm

Thu🌤️ 29°💧 0.9 mm

Fri☁️ 31°💧 0.4 mm

Sat☁️ 30°💧 0.5 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

Friday 11 Sept in Barnaul, the forecast high is 31°C. Typical daytime temperatures at this time of year range from 14°C to 23°C, so it will be exceptionally warm. It is warmer than 99% of similar days.

Saturday 5 Sept

14°Cexceptionally cool

usually 16°C–26°C

cooler than 91% of similar days

night: warmer than usual rain: typical rainfall wind: lighter than usual

Sunday 6 Sept

22°Cnear normal

usually 16°C–25°C

night: exceptionally warm rain: typical rainfall wind: exceptionally light

Monday 7 Sept

24°Cwarmer than usual

usually 15°C–24°C

warmer than 77% of similar days

night: exceptionally warm rain: more rain than usual wind: exceptionally light

Tuesday 8 Sept

24°Cwarmer than usual

usually 15°C–24°C

warmer than 80% of similar days

night: exceptionally warm rain: more rain than usual wind: typical

Wednesday 9 Sept

26°Cwarmer than usual

usually 15°C–24°C

warmer than 87% of similar days

night: exceptionally warm rain: typical rainfall wind: lighter than usual

Thursday 10 Sept

29°Cexceptionally warm

usually 14°C–23°C

warmer than 96% of similar days

night: exceptionally warm rain: typical rainfall wind: exceptionally light

Friday 11 Sept

31°Cexceptionally warm

usually 14°C–23°C

warmer than 99% of similar days

night: exceptionally warm rain: typical rainfall wind: lighter than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 20°C by day. The coolest year was 1985 (13°C) and the warmest was 2000 (27°C). The current forecast averages 24°C - higher than in 93% 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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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.

14-day forecast - Barnaul

Barnaul - 14-day weather forecast infographic

Barnaul 30 & 45-day weather - long-range outlook

Next 16 days · forecast

22°

around 17° at night · days with rain: 4

Weeks 3-4 · avg for September

17°

around 5° at night · rain chance 49%

Weeks 5-7 · avg for October

6°

around -2° at night · rain chance 45%

The 30 & 45-day outlook for Barnaul: the next 16 days are a numerical forecast updated daily - on average 22° by day and 17° at night. Further out we rely on multi-year climate averages: around 17° in September, and about 6° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Barnaul

Saturday5 September 2026

🌧️14°light rain

sunrise 06:40 · sunset 20:06 · night 10° · evening 14° · rain 0.64 mm · humidity 61% · wind 4 m/s · clouds 100%

Sunday6 September 2026

🌤️22°a few clouds

sunrise 06:42 · sunset 20:04 · night 14° · evening 21° · rain 0.62 mm · humidity 36% · wind 2 m/s · clouds 20%

Monday7 September 2026

🌤️24°a few clouds

sunrise 06:44 · sunset 20:02 · night 15° · evening 22° · rain 1.06 mm · humidity 40% · wind 2 m/s · clouds 23%

Tuesday8 September 2026

☁️24°overcast clouds

sunrise 06:45 · sunset 19:59 · night 17° · evening 23° · rain 3.44 mm · humidity 37% · wind 5 m/s · clouds 100%

Wednesday9 September 2026

☀️26°clear sky

sunrise 06:47 · sunset 19:57 · night 18° · evening 23° · rain 0.6 mm · humidity 30% · wind 4 m/s · clouds 7%

Thursday10 September 2026

🌤️29°scattered clouds

sunrise 06:49 · sunset 19:54 · night 20° · evening 26° · rain 0.85 mm · humidity 24% · wind 3 m/s · clouds 27%

Friday11 September 2026

☁️31°overcast clouds

sunrise 06:50 · sunset 19:52 · night 21° · evening 27° · rain 0.35 mm · humidity 17% · wind 4 m/s · clouds 87%

Saturday12 September 2026

☁️30°broken clouds

sunrise 06:52 · sunset 19:50 · night 25° · evening 27° · rain 0.49 mm · humidity 24% · wind 4 m/s · clouds 79%

Sunday13 September 2026

☁️20°overcast clouds

sunrise 06:54 · sunset 19:47 · night 17° · evening 23° · rain 1.84 mm · humidity 61% · wind 7 m/s · clouds 96%

Monday14 September 2026

🌧️13°moderate rain

sunrise 06:56 · sunset 19:45 · night 14° · evening 14° · rain 11.89 mm · humidity 88% · wind 6 m/s · clouds 97%

Tuesday15 September 2026

🌧️21°light rain

sunrise 06:57 · sunset 19:42 · night 17° · evening 19° · rain 0.96 mm · humidity 50% · wind 3 m/s · clouds 43%

Wednesday16 September 2026

☀️23°clear sky

sunrise 06:59 · sunset 19:40 · night 15° · evening 19° · humidity 43% · wind 3 m/s · clouds 55%

Thursday17 September 2026

☁️22°overcast clouds

sunrise 07:01 · sunset 19:37 · night 16° · evening 19° · humidity 45% · wind 1 m/s · clouds 100%

Friday18 September 2026

☁️23°overcast clouds

sunrise 07:03 · sunset 19:35 · night 19° · evening 22° · humidity 39% · wind 3 m/s · clouds 89%

Saturday19 September 2026

☁️20°broken clouds

sunrise 07:04 · sunset 19:32 · night 16° · evening 18° · humidity 33% · wind 5 m/s · clouds 83%

Sunday20 September 2026

☁️15°broken clouds

sunrise 07:06 · sunset 19:30 · night 11° · evening 13° · humidity 44% · wind 4 m/s · clouds 84%

UV index in Barnaul - is it safe to sunbathe?

Today the UV index in Barnaul is 2 (low). You can safely stay outside. Sunscreen only matters for very long exposure.

Barnaul weather through the year

Warmest, driest months on average: May, June, July, August.

Upcoming public holidays in Russia: Unity Day — 4 November · New Year's Day — 1 January · New Year holiday — 2 January.

Nearby and related places

NovosibirskOskemenPavlodarOelgiyOmskKhovdChelyabinskVoronezhMoscowUfaSamara

FAQ - Barnaul weather

What is the weather like in Barnaul today?

Today it is about 14° during the day and 10° at night, light rain.

How far ahead can I check the forecast for Barnaul?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.