Weather in Heilbronn

Forecast: MOSMIX (DWD-Statistik über ICON + ECMWF) · Run 07.08. 23:00 Uhr · Station HEILBRONN (1,5 km from the centre) · own station correction +1,4 °C (from our station comparison). We show where our data comes from – and how often we get it wrong. Measured against official stations, we were recently off by ±1,4 °C here (up to 24 h), rain forecast 94 % correct.
Today: settled weather – historically easy to forecast.
We beat the "same as yesterday" rule of thumb by 57 %.

Now · as of 06:00

12°klar

Later today

High · 17:00 Uhr32° Low12°

2 km/h aus N 13 % 75 % 1022 hPa Rain last 24 h 0,0 mm (measured, as of 05:00) 06:06 20:51 abnehmende Sichel (24 %)

Rain Radar

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The next few days

Day	Min	Max	Risk	Sun
Sa, 08.08.	12°	32°	2 %	13,2 h	06:06	20:51
So, 09.08.	15°	34° 16:00	3 %	10,8 h	06:07	20:49
Mo, 10.08.	18°	35° 16:00	4 %	9,7 h	06:08	20:47
Di, 11.08.	17°	31° 17:00	2 %	11,2 h	06:10	20:46
Mi, 12.08.	14°	33° 16:00	1 %	12,9 h	06:11	20:44
Do, 13.08.	13°	35° 17:00	1 %	12,5 h	06:13	20:42
Fr, 14.08.	15°	35° 17:00	2 %	11,9 h	06:14	20:40
Sa, 15.08.	16°	34° 16:00	4 %	10,4 h	06:15	20:38
So, 16.08.	17°	31° 16:00	4 %	9,9 h	06:17	20:37
Mo, 17.08.	18°	30° 15:00	10 %	8,6 h	06:18	20:35

Outlook: the next few weeks

A genuine day-by-day forecast only reaches about 10 days out – anything beyond that is statistics, not a forecast. That's why we don't show a 30- or 90-day outlook. What can be honestly stated is the long-term normal: in Heilbronn the average temperature in August is 19,7 °C, in September it's 15,2 °C (1991-2020 climate mean for the local climate station, see below). We show openly how often our forecast actually holds up.

How reliable is the forecast?

How our forecast daily high has shifted across recent runs. Flat line = the forecast is holding, jittery = still shifting.

Sa, 08.08.32° stabil (±0,4 °C über 12 Läufe)

So, 09.08.34° wackelt noch (±2,6 °C über 12 Läufe)

Mo, 10.08.35° wackelt noch (±2,9 °C über 12 Läufe)

Di, 11.08.31° wackelt noch (±0,8 °C über 12 Läufe)

Today at a glanceSa, 08.08.

Garden no frost

Low of 8,0 °C in 48 h, 0,0 mm rain in 24 h. Spray/watering window: 06:00 to 05:00 (48 h) – dry, calm, stays dry afterwards. Product-dependent – check the label.

Outdoors dry

06:00 to 05:00 (48 h) · gusts up to 24 km/h.

Pollen Beifuß: geringe bis mittlere Belastung

Also Gräser geringe load.

Region Hohenlohe/mittlerer Neckar/Oberschwaben · Stand 07.08., 11:00 Uhr · DWD-Pollenflugvorhersage

Balcony solar: today ≈ 4,52 kWh per kWp, tomorrow 4,17 kWh · Best 2 h for high loads today: 13:00 to 14:00 (south, vertical) – adjust to your orientation in the app.

Climate in Heilbronn (1991-2020)

The warmest month in Heilbronn is Juli (avg 20,2 °C), the coldest is Januar (avg 2,2 °C). The most rain falls in Juli (avg 77,6 mm), the least in April (avg 39,0 mm). The sunniest month is Juli (avg 243,7 h).

Annual mean 10,9 °C, 712 mm precipitation, 1734 hours of sunshine, 67 frost days. Weather station Heilbronn (1,1 km away).

Record on 08.08.: 36,0 °C (2003), coldest value 6,1 °C (1953), highest rainfall 43,4 mm (2009) – series since 1947