Helmetta · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Helmetta & 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
31°
Thu, Aug 20
Coldest night
15°
Fri, Aug 28
Days with precip
7 / 14
of 14 forecast days
Nicest day
Fri, Aug 28
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
27° 20°
78% precip chance
Sat 29 – Sun 30 Aug
26° 16°
6% precip chance
Sat 5 – Sun 6 Sep
25° 16°
typical range
Sat 12 – Sun 13 Sep
24° 15°
typical range
30 days — Helmetta
14 forecast + 16 climatology
Thu · Today Sunny
31°19°25.0 mm⌄
Wind12 mph N
Gusts23 mph
UV index3 – Low
Precip chance80%
Sunrise06:13
Sunset19:48
Fri · Tomorrow Mostly cloudy
30°19°11%⌄
Wind7 mph N
Gusts16 mph
UV index8 – Very high
Precip chance11%
Sunrise06:14
Sunset19:47
Saturday 22/8 Mostly cloudy
25°21°1.1 mm⌄
Wind12 mph E
Gusts17 mph
UV index4 – Moderate
Precip chance57%
Sunrise06:15
Sunset19:45
Sunday 23/8 Showers
27°20°3.3 mm⌄
Wind6 mph W
Gusts13 mph
UV index7 – High
Precip chance78%
Sunrise06:16
Sunset19:44
Monday 24/8 Sunny
25°17°6%⌄
Wind13 mph W
Gusts19 mph
UV index7 – High
Precip chance6%
Sunrise06:17
Sunset19:42
Tuesday 25/8 Mostly cloudy
30°18°10%⌄
Wind10 mph SE
Gusts17 mph
UV index7 – High
Precip chance10%
Sunrise06:18
Sunset19:41
Wednesday 26/8 Showers
25°21°66.0 mm⌄
Wind9 mph S
Gusts23 mph
UV index6 – High
Precip chance93%
Sunrise06:19
Sunset19:39
Thursday 27/8 Showers
25°17°20.1 mm⌄
Wind10 mph S
Gusts25 mph
UV index6 – High
Precip chance83%
Sunrise06:20
Sunset19:38
Friday 28/8 Sunny
24°15°6%⌄
Wind12 mph W
Gusts20 mph
UV index6 – High
Precip chance6%
Sunrise06:21
Sunset19:36
Saturday 29/8 Sunny
26°16°5%⌄
Wind9 mph W
Gusts20 mph
UV index7 – High
Precip chance5%
Sunrise06:22
Sunset19:34
Sunday 30/8 Sunny
26°16°6%⌄
Wind7 mph W
Gusts9 mph
UV index7 – High
Precip chance6%
Sunrise06:23
Sunset19:33
Monday 31/8 Mostly cloudy
28°18°4.3 mm⌄
Wind8 mph S
Gusts23 mph
UV index6 – High
Precip chance71%
Sunrise06:24
Sunset19:31
Tuesday 1/9 Showers
26°20°12.9 mm⌄
Wind9 mph SW
Gusts28 mph
UV index6 – High
Precip chance87%
Sunrise06:25
Sunset19:30
Wednesday 2/9 Mostly cloudy
28°19°11%⌄
Wind9 mph N
Gusts24 mph
UV index7 – High
Precip chance11%
Sunrise06:26
Sunset19:28
Thursday 3/9 Rain (climatological)
22°14°28.8 mm⌄
Day≈19–25°
Night≈11–17°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 4/9 Partly cloudy (climatological)
25°16°20%⌄
Day≈22–28°
Night≈13–19°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 5/9 Partly cloudy (climatological)
25°16°20%⌄
Day≈22–28°
Night≈13–19°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Rain (climatological)
25°16°23.0 mm⌄
Day≈22–28°
Night≈13–19°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
21°13°20%⌄
Day≈18–24°
Night≈10–16°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
20°13°35.5 mm⌄
Day≈17–23°
Night≈10–16°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
21°14°20%⌄
Day≈18–24°
Night≈11–17°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
26°17°20%⌄
Day≈23–29°
Night≈14–20°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
24°15°30.7 mm⌄
Day≈21–27°
Night≈12–18°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
24°16°20%⌄
Day≈21–27°
Night≈13–19°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
23°15°20%⌄
Day≈20–26°
Night≈12–18°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
20°13°26.9 mm⌄
Day≈17–23°
Night≈10–16°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
22°14°20%⌄
Day≈19–25°
Night≈11–17°
Precip≈11.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
26°17°30.7 mm⌄
Day≈23–29°
Night≈14–20°
Precip≈11.3 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 Helmetta, 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.