American Falls · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
American Falls & 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
92°
Tue, Sep 1
Coldest night
41°
Sun, Sep 6
Days with precip
4 / 14
of 14 forecast days
Nicest day
Mon, Sep 7
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
87° 57°
4% precip chance
Sat 5 – Sun 6 Sep
62° 41°
81% precip chance
Sat 12 – Sun 13 Sep
72° 46°
typical range
Sat 19 – Sun 20 Sep
73° 47°
typical range
30 days — American Falls
14 forecast + 16 climatology
Tue · Today Showers
91°61°2.8 mm⌄
Wind15 mph S
Gusts22 mph
UV index8 – Very high
Precip chance57%
Sunrise06:48
Sunset20:18
Wed · Tomorrow Mostly cloudy
92°66°3.1 mm⌄
Wind21 mph NW
Gusts29 mph
UV index8 – High
Precip chance60%
Sunrise06:49
Sunset20:16
Thursday 27/8 Sunny
90°64°0.4 mm⌄
Wind13 mph W
Gusts14 mph
UV index8 – Very high
Precip chance36%
Sunrise06:50
Sunset20:15
Friday 28/8 Showers
90°65°0.5 mm⌄
Wind17 mph SW
Gusts26 mph
UV index7 – High
Precip chance36%
Sunrise06:51
Sunset20:13
Saturday 29/8 Sunny
83°57°4%⌄
Wind12 mph SE
Gusts24 mph
UV index7 – High
Precip chance4%
Sunrise06:53
Sunset20:11
Sunday 30/8 Sunny
87°61°1%⌄
Wind9 mph W
Gusts14 mph
UV index8 – Very high
Precip chance1%
Sunrise06:54
Sunset20:10
Monday 31/8 Sunny
91°57°1%⌄
Wind15 mph S
Gusts15 mph
UV index8 – Very high
Precip chance1%
Sunrise06:55
Sunset20:08
Tuesday 1/9 Mostly cloudy
92°64°0.1 mm⌄
Wind22 mph SW
Gusts34 mph
UV index7 – High
Precip chance17%
Sunrise06:56
Sunset20:06
Wednesday 2/9 Mostly cloudy
72°57°2.5 mm⌄
Wind28 mph W
Gusts35 mph
UV index5 – Moderate
Precip chance57%
Sunrise06:57
Sunset20:04
Thursday 3/9 Mostly cloudy
80°52°6%⌄
Wind9 mph S
Gusts16 mph
UV index7 – High
Precip chance6%
Sunrise06:58
Sunset20:03
Friday 4/9 Mostly cloudy
80°60°9%⌄
Wind15 mph SW
Gusts28 mph
UV index6 – High
Precip chance9%
Sunrise06:59
Sunset20:01
Saturday 5/9 Showers
62°47°13.6 mm⌄
Wind17 mph SW
Gusts31 mph
UV index3 – Moderate
Precip chance81%
Sunrise07:00
Sunset19:59
Sunday 6/9 Sunny
57°41°0.6 mm⌄
Wind21 mph SW
Gusts32 mph
UV index4 – Moderate
Precip chance36%
Sunrise07:01
Sunset19:57
Monday 7/9 Sunny
65°42°2%⌄
Wind8 mph W
Gusts17 mph
UV index5 – Moderate
Precip chance2%
Sunrise07:02
Sunset19:56
Tuesday 8/9 Rain (climatological)
73°50°3.2 mm⌄
Day≈68–79°
Night≈44–55°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
78°52°20%⌄
Day≈72–83°
Night≈47–58°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
77°52°20%⌄
Day≈71–82°
Night≈46–57°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
75°51°3.7 mm⌄
Day≈70–80°
Night≈45–56°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
72°49°20%⌄
Day≈67–78°
Night≈44–54°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
66°46°20%⌄
Day≈61–72°
Night≈40–51°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
71°48°3.4 mm⌄
Day≈65–76°
Night≈43–53°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
72°49°20%⌄
Day≈66–77°
Night≈43–54°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
77°52°20%⌄
Day≈71–82°
Night≈46–57°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
79°53°3.6 mm⌄
Day≈74–84°
Night≈48–58°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
76°51°20%⌄
Day≈70–81°
Night≈46–56°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
73°49°20%⌄
Day≈67–78°
Night≈44–55°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
68°47°4.4 mm⌄
Day≈63–74°
Night≈41–52°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
67°46°20%⌄
Day≈61–72°
Night≈40–51°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
72°49°20%⌄
Day≈67–77°
Night≈44–54°
Precip≈2.0 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
77°52°4.8 mm⌄
Day≈72–83°
Night≈47–57°
Precip≈2.0 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 American Falls, 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.