Jamesburg · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Jamesburg & 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
32°
Mon, Aug 31
Coldest night
15°
Tue, Sep 8
Days with precip
7 / 14
of 14 forecast days
Nicest day
Tue, Sep 8
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
29° 16°
8% precip chance
Sat 5 – Sun 6 Sep
30° 19°
59% precip chance
Sat 12 – Sun 13 Sep
25° 14°
typical range
Sat 19 – Sun 20 Sep
25° 15°
typical range
30 days — Jamesburg
14 forecast + 16 climatology
Wed · Today Mostly cloudy
29°17°9%⌄
Wind6 mph W
Gusts18 mph
UV index8 – High
Precip chance9%
Sunrise06:19
Sunset19:39
Thu · Tomorrow Mostly cloudy
28°20°2.8 mm⌄
Wind11 mph SW
Gusts25 mph
UV index7 – High
Precip chance70%
Sunrise06:20
Sunset19:38
Friday 28/8 Showers
28°21°9.2 mm⌄
Wind11 mph N
Gusts23 mph
UV index6 – High
Precip chance88%
Sunrise06:21
Sunset19:36
Saturday 29/8 Mostly cloudy
27°16°8%⌄
Wind9 mph N
Gusts22 mph
UV index7 – High
Precip chance8%
Sunrise06:22
Sunset19:34
Sunday 30/8 Sunny
29°17°6%⌄
Wind8 mph SW
Gusts23 mph
UV index6 – High
Precip chance6%
Sunrise06:23
Sunset19:33
Monday 31/8 Mostly cloudy
32°20°11%⌄
Wind10 mph NW
Gusts22 mph
UV index8 – Very high
Precip chance11%
Sunrise06:24
Sunset19:31
Tuesday 1/9 Showers
24°18°6.4 mm⌄
Wind7 mph N
Gusts22 mph
UV index5 – Moderate
Precip chance89%
Sunrise06:25
Sunset19:30
Wednesday 2/9 Showers
25°18°15.2 mm⌄
Wind6 mph E
Gusts15 mph
UV index7 – High
Precip chance86%
Sunrise06:26
Sunset19:28
Thursday 3/9 Mostly cloudy
22°19°2.3 mm⌄
Wind7 mph NE
Gusts10 mph
UV index6 – High
Precip chance73%
Sunrise06:27
Sunset19:27
Friday 4/9 Mostly cloudy
25°18°2.0 mm⌄
Wind9 mph SW
Gusts27 mph
UV index5 – Moderate
Precip chance66%
Sunrise06:28
Sunset19:25
Saturday 5/9 Mostly cloudy
30°19°0.3 mm⌄
Wind11 mph W
Gusts26 mph
UV index7 – High
Precip chance36%
Sunrise06:29
Sunset19:23
Sunday 6/9 Mostly cloudy
30°19°1.7 mm⌄
Wind11 mph SW
Gusts31 mph
UV index8 – Very high
Precip chance59%
Sunrise06:30
Sunset19:22
Monday 7/9 Mostly cloudy
25°16°0.7 mm⌄
Wind9 mph NW
Gusts21 mph
UV index6 – High
Precip chance46%
Sunrise06:31
Sunset19:20
Tuesday 8/9 Mostly cloudy
23°15°12%⌄
Wind7 mph N
Gusts18 mph
UV index5 – Moderate
Precip chance12%
Sunrise06:32
Sunset19:18
Wednesday 9/9 Rain (climatological)
21°14°4.7 mm⌄
Day≈18–24°
Night≈11–17°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
24°15°20%⌄
Day≈21–27°
Night≈12–18°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
24°15°20%⌄
Day≈21–27°
Night≈12–18°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
25°16°8.5 mm⌄
Day≈22–28°
Night≈13–19°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
21°14°20%⌄
Day≈18–24°
Night≈11–17°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
21°13°20%⌄
Day≈18–24°
Night≈10–16°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
20°13°5.3 mm⌄
Day≈17–23°
Night≈10–16°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
21°14°20%⌄
Day≈18–24°
Night≈11–17°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
25°15°20%⌄
Day≈22–28°
Night≈12–18°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
24°15°7.3 mm⌄
Day≈21–27°
Night≈12–18°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
25°16°20%⌄
Day≈22–28°
Night≈13–19°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
23°15°20%⌄
Day≈20–26°
Night≈12–18°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
21°13°11.1 mm⌄
Day≈18–24°
Night≈10–16°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
22°14°20%⌄
Day≈19–25°
Night≈11–17°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
23°14°20%⌄
Day≈20–26°
Night≈11–17°
Precip≈3.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
24°15°8.5 mm⌄
Day≈21–27°
Night≈12–18°
Precip≈3.5 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 Jamesburg, 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.