Indiana StateINST
PurduePUR
WFI 1negligible83°F · wind 2 g8 mph · dry
Benign conditions; weather is a non-factor.
Every Big Ten game over the next eleven days — 32 — with the posted line, kickoff, stadium, and the forecast weather impact on each.
Weeks 1–2 · 32 games · forecasts off NBM run 20260904T06:00Z
Friday, September 4
ToledoTOL
WFI 3range 0–9negligible72°F · wind 3 g10 mph · dry · rain chance 45%
Precipitation-driven impact — 3 mph wind, gusts 10, 72°F, rain 0.00 in/hr.
Fresno StateFRES
WFI 0negligible71°F · wind 5 g12 mph · dry
Benign conditions; weather is a non-factor.
Saturday, September 5
North TexasUNT
WFI 8range 1–16negligible89°F · wind 5 g11 mph · dry · rain chance 11%
Heat-driven impact — 5 mph wind, gusts 11, 89°F, rain 0.00 in/hr.
WFI 7negligible92°F · wind 6 g13 mph · dry
Heat-driven impact — 6 mph wind, gusts 13, 92°F.
Ball StateBALL
WFI 8range 3–17negligible82°F · wind 6 g12 mph · rain 0.009 in/hr · rain chance 39%
Precipitation-driven impact — 6 mph wind, gusts 12, 82°F, rain 0.01 in/hr.
Boise StateBOIS
WFI 0negligible71°F · wind 4 g8 mph · dry
Benign conditions; weather is a non-factor.
MarshallMRSH
WFI 0negligible76°F · wind 5 g10 mph · dry · rain chance 6%
Benign conditions; weather is a non-factor.
WFI 8negligible89°F · wind 6 g8 mph · dry
Heat-driven impact — 6 mph wind, gusts 8, 89°F.
WFI 3negligible69°F · wind 6 g14 mph · dry · rain chance 6%
Benign conditions; weather is a non-factor.
HamptonHAMP
MarylandMD
WFI 0negligible74°F · wind 2 g7 mph · dry · rain chance 10%
Benign conditions; weather is a non-factor.
South Dakota StateSDST
WFI 14negligible74°F · wind 11 g17 mph · dry
Wind-driven impact — 11 mph wind, gusts 17, 74°F.
UCLAUCLA
CaliforniaCAL
WFI 0negligible59°F · wind 2 g6 mph · dry
Benign conditions; weather is a non-factor.
Sunday, September 6
WFI 4negligible71°F · wind 7 g10 mph · dry
Wind-driven impact — 7 mph wind, gusts 10, 71°F.
WisconsinWIS
WFI 0negligible72°F · wind 3 g7 mph · dry
Benign conditions; weather is a non-factor.
Friday, September 11
RutgersRUTG
WFI 9negligible68°F · wind 9 g16 mph · dry · rain chance 6%
Wind-driven impact — 9 mph wind, gusts 16, 68°F.
Saturday, September 12
HowardHOW
WFI 1negligible82°F · wind 5 g10 mph · dry · rain chance 6%
Benign conditions; weather is a non-factor.
WFI 9negligible74°F · wind 9 g18 mph · dry · rain chance 8%
Wind-driven impact — 9 mph wind, gusts 18, 74°F.
Oklahoma StateOKST
WFI 20range 16–24minor92°F · wind 12 g20 mph · dry · rain chance 7%
Wind-driven impact — 12 mph wind, gusts 20, 92°F.
Wake ForestWAKE
PurduePUR
WFI 4negligible80°F · wind 7 g12 mph · dry · rain chance 7%
Wind-driven impact — 7 mph wind, gusts 12, 80°F.
TempleTEM
WFI 2negligible76°F · wind 6 g13 mph · dry · rain chance 6%
Benign conditions; weather is a non-factor.
WFI 6range 6–16negligible82°F · wind 8 g12 mph · dry · rain chance 12%
Wind-driven impact — 8 mph wind, gusts 12, 82°F.
WFI 11negligible74°F · wind 9 g20 mph · dry · rain chance 9%
Wind-driven impact — 9 mph wind, gusts 20, 74°F.
MinnesotaMINN
WFI 16negligible76°F · wind 12 g22 mph · dry · rain chance 10%
Wind-driven impact — 12 mph wind, gusts 21, 75°F.
MarylandMD
UConnCONN
WFI 8negligible71°F · wind 8 g16 mph · dry · rain chance 8%
Wind-driven impact — 8 mph wind, gusts 16, 71°F.
Utah StateUSU
WFI 6negligible62°F · wind 5 g8 mph · rain 0.01 in/hr · rain chance 19%
Precipitation-driven impact — 5 mph wind, gusts 8, 62°F, rain 0.01 in/hr.
Bowling GreenBGSU
NebraskaNEB
WFI 9range 9–22negligible86°F · wind 9 g16 mph · dry · rain chance 13%
Wind-driven impact — 9 mph wind, gusts 16, 86°F.
San Diego StateSDSU
UCLAUCLA
WFI 4negligible82°F · wind 7 g15 mph · dry
Wind-driven impact — 7 mph wind, gusts 15, 82°F.
Western IllinoisWIU
WisconsinWIS
WFI 9range 9–19negligible73°F · wind 9 g16 mph · dry · rain chance 16%
Wind-driven impact — 9 mph wind, gusts 16, 73°F.
Iowa StateISU
WFI 8range 8–18negligible79°F · wind 8 g11 mph · dry · rain chance 15%
Wind-driven impact — 8 mph wind, gusts 11, 79°F.
WFI 12range 7–15negligible93°F · wind 8 g17 mph · dry · rain chance 6%
Wind-driven impact — 8 mph wind, gusts 17, 93°F.
WFI 7negligible69°F · wind 8 g12 mph · dry
Wind-driven impact — 8 mph wind, gusts 13, 69°F.
Reading the weather chip: the Weather Football Index
scores forecast conditions 0–100 for football impact —
0–19 negligible,
20–39 minor,
40–59 notable,
60–79 high,
80+ extreme.
Domes are scored, not skipped: the roof factor takes them to near zero.
Rain chances are the NBM ensemble's probability of measurable precipitation in the
6-hour window covering kickoff (a "soaking" is ≥0.25"), which says what a single
blended rate cannot — a 79% storm day can still average out to a dry-looking number.
Lines are the book's posted numbers via ESPN; the Kalshi row is the implied total and win price from that game's traded strike ladder on the regulated exchange, shown only while fresh. Both update through the week.
See the methodology.