Needham · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Needham & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
89°
Wed, Aug 26
Coldest night
54°
Tue, Sep 8
Days with precip
8 / 14
of 14 forecast days
Nicest day
Sat, Aug 29
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
86° 56°
15% precip chance
Sat 5 – Sun 6 Sep
68° 56°
93% precip chance
Sat 12 – Sun 13 Sep
67° 51°
typical range
Sat 19 – Sun 20 Sep
69° 51°
typical range
30 days — Needham
14 forecast + 16 climatology
Wed · Today Sunny
89°59°5%⌄
Wind8 mph SE
Gusts16 mph
UV index7 – High
Precip chance5%
Sunrise06:04
Sunset19:29
Thu · Tomorrow Mostly cloudy
85°62°16%⌄
Wind13 mph S
Gusts26 mph
UV index7 – High
Precip chance16%
Sunrise06:05
Sunset19:27
Friday 28/8 Mostly cloudy
85°68°0.9 mm⌄
Wind9 mph SW
Gusts25 mph
UV index6 – High
Precip chance64%
Sunrise06:06
Sunset19:26
Saturday 29/8 Mostly cloudy
79°59°15%⌄
Wind6 mph SE
Gusts16 mph
UV index6 – High
Precip chance15%
Sunrise06:07
Sunset19:24
Sunday 30/8 Sunny
86°56°7%⌄
Wind11 mph W
Gusts28 mph
UV index7 – High
Precip chance7%
Sunrise06:08
Sunset19:22
Monday 31/8 Mostly cloudy
81°65°1.4 mm⌄
Wind8 mph E
Gusts16 mph
UV index7 – High
Precip chance69%
Sunrise06:09
Sunset19:21
Tuesday 1/9 Showers
69°59°12.7 mm⌄
Wind12 mph N
Gusts36 mph
UV index4 – Moderate
Precip chance90%
Sunrise06:10
Sunset19:19
Wednesday 2/9 Showers
63°58°6.7 mm⌄
Wind6 mph E
Gusts13 mph
UV index4 – Moderate
Precip chance90%
Sunrise06:11
Sunset19:17
Thursday 3/9 Mostly cloudy
69°58°0.3 mm⌄
Wind5 mph NE
Gusts14 mph
UV index5 – Moderate
Precip chance43%
Sunrise06:12
Sunset19:16
Friday 4/9 Mostly cloudy
71°59°75.8 mm⌄
Wind15 mph S
Gusts35 mph
UV index5 – Moderate
Precip chance91%
Sunrise06:13
Sunset19:14
Saturday 5/9 Showers
68°57°7.2 mm⌄
Wind20 mph N
Gusts46 mph
UV index3 – Moderate
Precip chance89%
Sunrise06:14
Sunset19:12
Sunday 6/9 Showers
62°56°11.9 mm⌄
Wind19 mph N
Gusts43 mph
UV index4 – Moderate
Precip chance93%
Sunrise06:15
Sunset19:11
Monday 7/9 Showers
67°62°5.5 mm⌄
Wind15 mph NE
Gusts33 mph
UV index4 – Moderate
Precip chance91%
Sunrise06:16
Sunset19:09
Tuesday 8/9 Mostly cloudy
69°54°0.4 mm⌄
Wind9 mph NE
Gusts20 mph
UV index6 – High
Precip chance36%
Sunrise06:17
Sunset19:07
Wednesday 9/9 Rain (climatological)
68°53°22.3 mm⌄
Day≈63–74°
Night≈48–59°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
72°55°20%⌄
Day≈66–77°
Night≈50–61°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
71°55°20%⌄
Day≈66–77°
Night≈50–61°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
67°53°18.7 mm⌄
Day≈62–73°
Night≈47–58°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
65°51°20%⌄
Day≈60–70°
Night≈46–57°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
60°49°20%⌄
Day≈55–66°
Night≈43–54°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
64°51°35.6 mm⌄
Day≈59–70°
Night≈46–56°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
65°52°20%⌄
Day≈60–71°
Night≈46–57°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
71°55°20%⌄
Day≈66–76°
Night≈50–60°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
68°53°24.9 mm⌄
Day≈63–74°
Night≈48–59°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
69°54°20%⌄
Day≈63–74°
Night≈48–59°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
65°51°20%⌄
Day≈59–70°
Night≈46–57°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
62°49°17.8 mm⌄
Day≈56–67°
Night≈44–55°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
62°49°20%⌄
Day≈56–67°
Night≈44–55°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
68°53°20%⌄
Day≈63–73°
Night≈48–59°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
68°53°25.8 mm⌄
Day≈63–73°
Night≈48–59°
Precip≈10.5 in / September
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for Needham, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.