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.
The forecast for Moss and the places around it comes from the same weather models as the place pages. Radar: RainViewer, images from the last two hours.
30 days — Moss
14 real + 16 synthesised
Fri · Today Cloudy
+14°+12°5,9 mm
Sat · Tomorrow Cloudy
+15°+11°0,3 mm
Sunday 4/10 Cloudy
+13°+9°12%
Monday 5/10 Clear
+16°+11°14%
Tuesday 6/10 Cloudy
+15°+10°17%
Wednesday 7/10 Cloudy
+11°+6°11%
Thursday 8/10 Cloudy
+12°+5°11%
Friday 9/10 Clear
+10°+4°4,6 mm
Saturday 10/10 Showers
+12°+9°29,6 mm
Sunday 11/10 Showers
+10°+7°4,1 mm
Monday 12/10 Showers
+9°+6°1,9 mm
Tuesday 13/10 Clear
+11°+8°16%
Wednesday 14/10 Clear
+11°+6°11%
Thursday 15/10 Clear
+10°+7°5,5 mm
Friday 16/10 Rain (climate normal)
+10°+4°10,9 mm
Saturday 17/10 Partly cloudy (climate normal)
+12°+5°20%
Sunday 18/10 Partly cloudy (climate normal)
+13°+6°20%
Monday 19/10 Rain (climate normal)
+10°+4°6,4 mm
Tuesday 20/10 Partly cloudy (climate normal)
+10°+4°20%
Wednesday 21/10 Partly cloudy (climate normal)
+7°+2°20%
Thursday 22/10 Rain (climate normal)
+9°+3°10,6 mm
Friday 23/10 Partly cloudy (climate normal)
+10°+4°20%
Saturday 24/10 Partly cloudy (climate normal)
+12°+5°20%
Sunday 25/10 Rain (climate normal)
+13°+6°7,6 mm
Monday 26/10 Partly cloudy (climate normal)
+10°+4°20%
Tuesday 27/10 Partly cloudy (climate normal)
+8°+2°20%
Wednesday 28/10 Rain (climate normal)
+9°+3°6,7 mm
Thursday 29/10 Partly cloudy (climate normal)
+7°+2°20%
Friday 30/10 Partly cloudy (climate normal)
+11°+4°20%
Saturday 31/10 Rain (climate normal)
+12°+5°7,8 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.