Mechanicsburg · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Mechanicsburg & 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
96°
Wed, Sep 2
Coldest night
50°
Wed, Sep 9
Days with precip
3 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
80° 57°
77% precip chance
Sat 12 – Sun 13 Sep
80° 63°
17% precip chance
Sat 19 – Sun 20 Sep
84° 63°
typical range
Sat 26 – Sun 27 Sep
82° 63°
typical range
30 days — Mechanicsburg
14 forecast + 16 climatology
Wed · Today Sunny
96°73°6%⌄
Wind11 mph SW
Gusts15 mph
UV index8 – Very high
Precip chance6%
Sunrise07:03
Sunset20:04
Thu · Tomorrow Sunny
87°73°2.9 mm⌄
Wind10 mph SW
Gusts28 mph
UV index7 – High
Precip chance57%
Sunrise07:03
Sunset20:03
Friday 4/9 Sunny
86°74°0.3 mm⌄
Wind10 mph W
Gusts19 mph
UV index7 – High
Precip chance28%
Sunrise07:04
Sunset20:01
Saturday 5/9 Sunny
80°67°7.4 mm⌄
Wind12 mph N
Gusts21 mph
UV index7 – High
Precip chance77%
Sunrise07:05
Sunset20:00
Sunday 6/9 Sunny
74°57°8%⌄
Wind11 mph NE
Gusts19 mph
UV index6 – High
Precip chance8%
Sunrise07:06
Sunset19:58
Monday 7/9 Mostly cloudy
78°63°11%⌄
Wind8 mph SE
Gusts11 mph
UV index6 – High
Precip chance11%
Sunrise07:07
Sunset19:56
Tuesday 8/9 Showers
73°57°4.4 mm⌄
Wind13 mph NE
Gusts22 mph
UV index5 – Moderate
Precip chance86%
Sunrise07:08
Sunset19:55
Wednesday 9/9 Mostly cloudy
68°50°18%⌄
Wind13 mph NE
Gusts24 mph
UV index4 – Moderate
Precip chance18%
Sunrise07:09
Sunset19:53
Thursday 10/9 Sunny
92°64°5%⌄
Wind17 mph SW
Gusts41 mph
UV index8 – Very high
Precip chance5%
Sunrise07:10
Sunset19:51
Friday 11/9 Sunny
89°70°0.6 mm⌄
Wind22 mph SW
Gusts45 mph
UV index7 – High
Precip chance36%
Sunrise07:11
Sunset19:50
Saturday 12/9 Mostly cloudy
75°66°17%⌄
Wind8 mph NE
Gusts19 mph
UV index5 – Moderate
Precip chance17%
Sunrise07:12
Sunset19:48
Sunday 13/9 Sunny
80°63°9%⌄
Wind8 mph NE
Gusts22 mph
UV index7 – High
Precip chance9%
Sunrise07:13
Sunset19:46
Monday 14/9 Sunny
87°74°7%⌄
Wind15 mph W
Gusts28 mph
UV index8 – Very high
Precip chance7%
Sunrise07:14
Sunset19:45
Tuesday 15/9 Mostly cloudy
74°60°14%⌄
Wind13 mph NE
Gusts24 mph
UV index6 – High
Precip chance14%
Sunrise07:15
Sunset19:43
Wednesday 16/9 Rain (climatological)
83°66°2.7 mm⌄
Day≈78–88°
Night≈61–71°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
84°67°20%⌄
Day≈78–89°
Night≈61–72°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
87°69°20%⌄
Day≈82–92°
Night≈63–74°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
84°67°4.0 mm⌄
Day≈79–90°
Night≈62–72°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
78°63°20%⌄
Day≈73–84°
Night≈58–69°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
75°62°20%⌄
Day≈70–81°
Night≈56–67°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
80°64°2.4 mm⌄
Day≈75–85°
Night≈59–70°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
79°64°20%⌄
Day≈74–84°
Night≈58–69°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
83°66°20%⌄
Day≈78–89°
Night≈61–72°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Light rain (climatological)
84°67°2.0 mm⌄
Day≈79–90°
Night≈62–72°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
82°66°20%⌄
Day≈77–88°
Night≈60–71°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
77°63°20%⌄
Day≈72–83°
Night≈57–68°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
79°64°3.3 mm⌄
Day≈73–84°
Night≈58–69°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
77°63°20%⌄
Day≈72–83°
Night≈57–68°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
83°66°20%⌄
Day≈78–89°
Night≈61–72°
Precip≈1.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Rain (climatological)
73°56°2.8 mm⌄
Day≈68–78°
Night≈51–62°
Precip≈1.3 in / October
(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 Mechanicsburg, 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.