Days 1-16 are a real forecast from global weather models. Days 17-30 are season-typical values based on DWD climate normals 1991-2020 — good for planning, NOT an exact forecast that far ahead.
30 days — Hagen
14 real + 16 synthesised
Fri · Today Clear
+24°+11°4%
Sat · Tomorrow Clear
+28°+11°2%
Sunday 9/8 Clear
+33°+16°1%
Monday 10/8 Clear
+33°+18°1%
Tuesday 11/8 Clear
+25°+15°3%
Wednesday 12/8 Clear
+30°+11°1%
Thursday 13/8 Clear
+36°+17°1%
Friday 14/8 Clear
+36°+23°1%
Saturday 15/8 Clear
+34°+19°1%
Sunday 16/8 Clear
+36°+21°27,0 mm
Monday 17/8 Showers
+30°+19°2,6 mm
Tuesday 18/8 Showers
+22°+18°5,4 mm
Wednesday 19/8 Partly cloudy
+26°+14°17%
Thursday 20/8 Showers
+20°+14°9,5 mm
Friday 21/8 Showers
+24°+14°2,2 mm
Saturday 22/8 Heavy rain
+23°+14°1,3 mm
Sunday 23/8 Partly cloudy (climate normal)
+24°+13°20%
Monday 24/8 Rain (climate normal)
+22°+12°13,0 mm
Tuesday 25/8 Partly cloudy (climate normal)
+22°+12°20%
Wednesday 26/8 Partly cloudy (climate normal)
+20°+11°20%
Thursday 27/8 Rain (climate normal)
+19°+10°8,8 mm
Friday 28/8 Partly cloudy (climate normal)
+23°+13°20%
Saturday 29/8 Partly cloudy (climate normal)
+25°+14°20%
Sunday 30/8 Rain (climate normal)
+25°+14°11,6 mm
Monday 31/8 Partly cloudy (climate normal)
+23°+12°20%
Tuesday 1/9 Partly cloudy (climate normal)
+17°+9°20%
Wednesday 2/9 Rain (climate normal)
+16°+8°5,7 mm
Thursday 3/9 Partly cloudy (climate normal)
+15°+7°20%
Friday 4/9 Partly cloudy (climate normal)
+17°+8°20%
Saturday 5/9 Rain (climate normal)
+19°+9°9,0 mm
Long-range forecast · Hagen
Hagen — 30-day analysis
Across the 30-day trend for Hagen, highs and lows span 7° to 36°, cooling down later in the month. The first 16 days are a real forecast, with rain on about 6 of them; the rest is based on the 1991–2020 climate normals.
How does the long-range forecast work?
Days 1-16 are a real forecast from global models (ICON, ECMWF, GFS): days 1-3 are almost always right, uncertainty grows afterwards, and from day 11 these are tendencies rather than exact values.
From day 17 a serious day-by-day forecast is physically impossible. We therefore show the 1991-2020 climate normals (monthly mean Tmax/Tmin) directly for Hagen, with mild weekly variation — the typical weather for the season, not a daily prediction.
Rule of thumb: good for “how warm is it usually in late July?”, not for “will it rain on the 27th?”.