Days 1-14 are a real forecast from global weather models. Days 15-30 are season-typical values based on climate normals 1991-2020 (MET) — good for planning, NOT an exact forecast that far ahead.
30 days — Hamar
14 real + 16 synthesised
Mon · Today Clear
+22°+6°3%
Tue · Tomorrow Partly cloudy
+21°+6°2,5 mm
Wednesday 5/8 Fog
+16°+12°7,8 mm
Thursday 6/8 Showers
+16°+10°2,6 mm
Friday 7/8 Partly cloudy
+22°+5°9%
Saturday 8/8 Showers
+19°+10°1,2 mm
Sunday 9/8 Showers
+18°+9°4,2 mm
Monday 10/8 Fog
+20°+8°2,6 mm
Tuesday 11/8 Clear
+21°+7°0,2 mm
Wednesday 12/8 Partly cloudy
+20°+8°0,5 mm
Thursday 13/8 Drizzle
+13°+11°22,8 mm
Friday 14/8 Drizzle
+15°+11°10,0 mm
Saturday 15/8 Showers
+18°+10°3,6 mm
Sunday 16/8 Clear
+22°+8°11%
Monday 17/8 Rain (climate normal)
+19°+10°10,4 mm
Tuesday 18/8 Partly cloudy (climate normal)
+21°+11°20%
Wednesday 19/8 Partly cloudy (climate normal)
+22°+12°20%
Thursday 20/8 Rain (climate normal)
+19°+10°11,6 mm
Friday 21/8 Partly cloudy (climate normal)
+18°+9°20%
Saturday 22/8 Partly cloudy (climate normal)
+18°+10°20%
Sunday 23/8 Rain (climate normal)
+16°+9°5,6 mm
Monday 24/8 Partly cloudy (climate normal)
+20°+11°20%
Tuesday 25/8 Partly cloudy (climate normal)
+22°+12°20%
Wednesday 26/8 Rain (climate normal)
+21°+11°8,9 mm
Thursday 27/8 Partly cloudy (climate normal)
+21°+11°20%
Friday 28/8 Partly cloudy (climate normal)
+19°+10°20%
Saturday 29/8 Rain (climate normal)
+18°+9°5,9 mm
Sunday 30/8 Partly cloudy (climate normal)
+17°+9°20%
Monday 31/8 Partly cloudy (climate normal)
+18°+10°20%
Tuesday 1/9 Rain (climate normal)
+15°+7°9,0 mm
How does the long-range forecast work?
Days 1-14: Fetched live from global weather models (ECMWF, GFS) with statistical correction. Reliability about 85 % for days 1-3, about 60 % for days 7-10, about 45 % for days 11-14.
Days 15-30: A real forecast does not exist that far ahead (chaotic system). Instead we show season-typical values: the monthly average Tmax/Tmin from climate normals 1991-2020, with mild weekly variation.
Use: «About how warm is it usually in Oslo the last week of July?» — a good question for days 15-30. «Will it rain on 27 May?» — no serious forecast can answer that.