Weather in Heidenheim an der Brenz

Forecast: MOSMIX (DWD-Statistik über ICON + ECMWF) · Run 22.09. 23:00 Uhr · Station HEIDENHEIM (1,8 km from the centre) · own station correction +0,6 °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 ±2,3 °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 55 %.

Now · as of 06:00

3°klar

Later today

High · 17:00 Uhr18° Low3°

4 km/h aus N 8 % 91 % 1028 hPa Rain last 24 h 0,0 mm (measured, as of 05:00) 07:08 19:14 waxing gibbous (89 %)

Rain Radar

Full view with all layers →

The next few days

Day	Min	Max	Risk	Sun
Mi, 23.09.	3°	18°	2 %	10,9 h	07:08	19:14
Do, 24.09.	7°	16° 15:00	18 %	4,3 h	07:09	19:12
Fr, 25.09.	3°	17° 16:00	4 %	9,2 h	07:11	19:10
Sa, 26.09.	4°	21° 16:00	2 %	9,7 h	07:12	19:08
So, 27.09.	7°	23° 16:00	2 %	8,6 h	07:14	19:06
Mo, 28.09.	10°	25° 16:00	6 %	7,0 h	07:15	19:04
Di, 29.09.	12°	23° 16:00	4 %	7,1 h	07:16	19:02
Mi, 30.09.	12°	22° 15:00	7 %	6,6 h	07:18	19:00
Do, 01.10.	12°	20° 15:00	15 %	5,9 h	07:19	18:58
Fr, 02.10.	10°	18° 15:00	12 %	5,9 h	07:21	18:56

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 Heidenheim an der Brenz the average temperature in September is 12,7 °C, in October it's 8,4 °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.

Mi, 23.09.18° stabil (±0,8 °C über 12 Läufe)

Do, 24.09.16° wackelt noch (±1,1 °C über 12 Läufe)

Fr, 25.09.17° wackelt noch (±1,2 °C über 12 Läufe)

Sa, 26.09.21° wackelt noch (±1,2 °C über 12 Läufe)

Today at a glanceMi, 23.09.

Garden Frost risk!

Low of -0,5 °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 18 km/h.

Pollen Grasses: none to low load

Also Ragweed none to low load.

Region Mittelgebirge Baden-Württemberg · As of 22.09., 11:00 Uhr · DWD pollen forecast

Balcony solar: today ≈ 4,67 kWh per kWp, tomorrow 1,84 kWh · Best 2 h for high loads today: 13:00 to 14:00 (south, vertical) – adjust to your orientation in the app.

Climate in Heidenheim an der Brenz (1991-2020)

The warmest month in Heidenheim an der Brenz is Juli (avg 17,7 °C), the coldest is Januar (avg -0,6 °C). The most rain falls in Juli (avg 89,8 mm), the least in April (avg 50,1 mm). The sunniest month is Juli (avg 232,9 h).

Annual mean 8,4 °C, 836 mm precipitation, 1595 hours of sunshine, 99 frost days. Weather station Heidenheim/Brenz (1,0 km away).

Record on 23.09.: 23,5 °C (1949), coldest value 1,7 °C (1948), highest rainfall 35,5 mm (2024) – series since 1947

Weather nearby

Aalen · Geislingen an der Steige · Schwäbisch Gmünd · Ulm · Göppingen · Schorndorf · all towns